In U.S. law, a joint venture is an agreement where two or more parties combine resources to carry out a single project or limited business purpose for profit. The parties can be individuals, businesses, or a mix of both, as long as there is a clear intent to work together, share profits or losses, and exercise some joint control over the venture. You can see this basic definition in the Cornell Legal Information Institute’s explanation of a joint venture in its Wex entry on a “joint venture” at the Legal Information Institute website, which notes that the parties can be “natural persons or entities.”
Courts look at the facts and conduct, not just the label you use. If two people agree to flip a house together, contribute money or labor, make decisions together, and split profits, a court may treat that as a joint venture even if they never wrote “joint venture” in an agreement. The Illinois example in a legal dictionary from an Illinois firm, available through the Elder Law and Resource Law Firm’s legal dictionary entry on “joint venture,” shows that courts look at common purpose, joint control, and profit and loss sharing to decide whether a joint venture exists, even when the parties are just individuals.
So two friends, spouses, or independent contractors can form a joint venture as individuals. The key is how they structure the relationship and what they actually do, not whether they have a formal company.
Quick Overview: What You Will Learn
- 🤝 How joint ventures between individuals work in U.S. law and how they differ from a normal partnership.
- 🧾 What key terms individual joint venturers should include in a written joint venture agreement to stay protected.
- 🏠How joint ventures between individuals show up in real estate, freelancing, investing, and married couples’ businesses, with concrete examples.
- ⚖️ How federal tax rules and state law (like California, New York, and others) treat individual joint ventures and why that matters if something goes wrong.
- đźš« The most common mistakes individual joint venturers make, plus the practical consequences and how to avoid them.
Core Legal Elements of a Joint Venture Between Individuals
Even though there is no single federal statute that defines “joint venture,” U.S. courts and legal scholars use a common set of elements.
A leading summary appears in the Legal Information Institute’s Wex article on “joint venture.” It describes several core elements that many states follow:
- There must be an agreement (oral or written) showing an intent to associate as joint venturers.
- Each party contributes something of value (money, labor, skill, property, or know‑how).
- The parties share some degree of joint control over the project or enterprise.
- The parties share profits and may share losses.
Many state courts, including those in New York, follow these elements or a very similar list, as described in the Cornell Wex “joint venture” entry at the Legal Information Institute site. That entry explains that the creation of a joint venture is “a matter of facts specific to each case,” which is why your behavior and risk‑sharing often matter more than the title on the contract.
Another example appears in an Illinois-focused explanation in the “Legal Dictionary—Joint Venture” provided by the Elder Law and Resource Law Firm. That explanation shows that Illinois courts look at common purpose, joint control, and sharing profits and losses when deciding if individuals are joint venturers, again underscoring that individuals can satisfy these elements just like companies can.
Because joint ventures resemble partnerships in many ways, courts often apply partnership rules to them. A California litigation firm’s page on “Joint Ventures” (on the Los Angeles Litigation Lawyers website) explains that California courts generally treat joint ventures as a kind of partnership for a single transaction, and that joint venturers can be jointly and severally liable like partners. A similar point is made in the “Distinction Between Joint Venture and Partnerships” article in the joint ventures section of USLegal, which explains that a joint venture is basically a partnership for one business undertaking and that general partnership principles often govern rights and liabilities.
Joint Venture vs. Partnership vs. LLC vs. Corporation (For Individuals)
When individuals work together on a business, they have to choose a structure—or they may accidentally create one by what they do. A joint venture is one option, but partnership, LLC, or corporation may fit better depending on goals.
How Joint Ventures and Partnerships Overlap
The USLegal article on the “Distinction Between Joint Venture and Partnerships” in its joint ventures section notes that a joint venture is typically “a partnership for a single transaction” or limited undertaking, and that the principles of partnership law largely govern joint ventures. The Los Angeles Litigation Lawyers “Joint Ventures” page also states that “the incidents of a joint venture are in all important respects the same as those of a partnership,” and that joint venturers can be jointly and severally liable for each other’s obligations.
In practice, this means:
- A partnership often operates an ongoing business (like a restaurant) for an indefinite period.
- A joint venture between individuals often focuses on a specific project or limited series of projects (like buying, rehabbing, and selling one property).
If two individuals keep doing multiple deals together, a court might start treating that relationship as a general partnership rather than a one‑off joint venture, especially if there is no clear written limitation to one project.
How Joint Ventures Compare to LLCs and Corporations
The California Law Review article “A Theory of Corporate Joint Ventures” discusses how joint ventures can be used even by corporations and how partnership principles may still apply. It highlights that partnership law and corporate law can both impose fiduciary duties in joint ventures, leading to complex conflicts of interest in corporate joint ventures.
For individuals, the key comparisons are:
- Joint venture (contract‑based)
Two or more individuals contract to do one or a small group of projects, share control, and split profits. There is usually no separate legal entity unless they choose to create one. This can be simple and flexible but may create personal liability similar to a partnership, as described in the USLegal “Distinction Between Joint Venture and Partnerships” article and the Los Angeles firm’s “Joint Ventures” page. - General partnership
Two or more people operate an ongoing business for profit. Like a joint venture, this can be formed informally, and partners are usually jointly and severally liable for partnership debts. The USLegal analysis notes that joint venturers can be treated like partners for liability. - Limited liability company (LLC)
An LLC can serve as the vehicle for a joint venture between individuals, so each individual owns a membership interest instead of contracting purely as individuals. The California Law Review article on corporate joint ventures shows that sometimes parties create a new entity as the “joint venture,” which can help contain risk. - Corporation
Individuals can form a corporation to carry out a joint venture, but this adds more formalities (boards, officers, corporate law obligations). The California Law Review article explains that corporate joint ventures blend corporate and partnership‑like features, which is more common with large corporate participants than with casual individual joint venturers.
For many individuals, an LLC‑based joint venture offers more protection than an informal individual joint venture, because LLC statutes in most states provide limited liability for members if the entity is properly formed and maintained.
Snapshot: Individual JV vs Partnership vs LLC
| Structure type | Typical use by individuals | Liability risk | Scope and duration | Formality |
|---|---|---|---|---|
| Individual joint venture | One project or defined set of projects between two or more people | Personal liability likely similar to partners, as described in USLegal’s joint venture discussion | Limited to a specific enterprise or project | Based on contract, can be informal if oral |
| General partnership | Ongoing shared business (e.g., store, firm) | Joint and several liability, similar to what the Los Angeles Litigation Lawyers “Joint Ventures” page notes for joint venturers | Continuing business, not limited to one project | Can arise by conduct, even without written agreement |
| LLC (used for JV) | Individuals co‑own a company created for their project | Liability usually limited to LLC assets under state LLC statutes | Can be single project or ongoing | Requires formation filing and operating agreement |
| Corporation (used for JV) | Larger or more complex joint ventures with formal structure | Shareholders typically have limited liability under corporate statutes | Can be narrow or broad | Highest formalities (board, corporate records) |
Common Real‑World Examples of Joint Ventures Between Individuals
1. Real Estate Joint Ventures Between Individuals
Real estate is one of the most common settings where individuals form joint ventures without always realizing it. A typical pattern is:
- One person has cash but little time.
- The other has time, construction skill, or deal‑finding ability.
- They agree to buy a property, renovate it, and sell it, splitting profits.
That arrangement fits the elements described in the Cornell Wex “joint venture” entry and in the Elder Law and Resource Law Firm’s “Legal Dictionary—Joint Venture” explanation: an agreement to pursue a single enterprise, contributions from each party, joint control, and profit sharing. If one party personally signs the loan or contract and something goes wrong, courts may treat the relationship as a joint venture and apply partnership‑like liability rules, as described in the USLegal “Distinction Between Joint Venture and Partnerships” analysis.
In many states, including California, courts will look at how much control each person had over the property decisions, whether they both expected to share profits, and whether they acted publicly as co‑owners. The Los Angeles Litigation Lawyers’ “Joint Ventures” page illustrates how California courts use partnership principles for joint ventures and hold participants jointly liable for wrongs committed in the course of the venture.
2. Service and Freelance Joint Ventures Between Individuals
Freelancers and solo professionals often team up on specific projects:
- A web designer and a copywriter jointly pitch and execute a big project for a client, share decision‑making, and split the fee.
- Two consultants work together on a limited consulting engagement and agree to share profits after expenses.
If they share control over project decisions, both contribute skill and labor, and split profits, they can easily meet the joint venture elements listed in the Cornell Wex “joint venture” article, even if they call it a “collaboration” or “partnership.” The legal risk is that each person may be responsible for the other’s missteps under partnership principles, similar to what USLegal explains in its “Distinction Between Joint Venture and Partnerships” article about joint and several liability for joint venturers.
For tax purposes, the IRS often treats such two‑person arrangements as partnerships unless they qualify for a special rule, like the “qualified joint venture” for spouses, which is discussed on the IRS pages “Married couples in business” and “Election for married couples unincorporated businesses” on the IRS website.
3. Investment Joint Ventures Between Individuals
Two individuals may pool money to invest in:
- A startup in which they agree to share any return in a specific ratio.
- A short‑term trading account or a special purpose investment (like a single franchise unit).
If they only invest passively and one person makes all decisions, the relationship may be closer to a lender‑borrower or investor‑manager relationship. But if both investors have joint control, contribute capital, and share profits and losses, this can create a joint venture under the elements listed in the Cornell Wex “joint venture” description. The more they both participate in decisions, the more likely a court is to see them as joint venturers or partners with mutual fiduciary duties, as discussed more broadly for joint ventures in the California Law Review’s “A Theory of Corporate Joint Ventures.”
4. Married Couples as Joint Venturers
Married couples often run small businesses together. For federal tax, the Internal Revenue Code includes a special concept called a “qualified joint venture” for spouses who own and operate an unincorporated business together and file a joint return. The IRS explains this on its “Married couples in business” page and its “Election for married couples unincorporated businesses” guidance, and on an article in The Tax Adviser called “LLC owned solely by spouses: A partnership or a joint venture?”.
Under Internal Revenue Code section 761(f), summarized in that Tax Adviser article, a qualified joint venture:
- Must have only the spouses as members.
- Requires that both spouses materially participate in the business.
- Allows them to elect to be treated as two sole proprietors rather than a partnership for federal tax purposes.
The IRS “Married couples in business” page explains that, after making a qualified joint venture election, each spouse reports their share of business income and expenses on a separate Schedule C. However, the IRS classification does not control how state law treats the relationship. Under state law, a married couple might still be considered joint venturers or partners, with the associated fiduciary duties and liability described in sources like USLegal’s joint venture discussion and the California “Joint Ventures” courts analysis.
Federal Law and Tax Treatment of Individual Joint Ventures
Federal Tax Characterization
For individuals, the main federal law impact of a joint venture is tax classification. The Internal Revenue Code and Treasury regulations generally treat a joint venture between two or more people carrying on a trade or business with the intent to share profits as a partnership for tax purposes, even if the parties call it a “joint venture.”
The IRS guidance for “Married couples in business” on the IRS website notes that, absent a qualified joint venture election, an unincorporated business owned jointly by spouses is generally classified as a partnership. The special election rules for a “qualified joint venture” in section 761(f), discussed in the IRS’s “Election for married couples unincorporated businesses” and in the Tax Adviser article “LLC owned solely by spouses: A partnership or a joint venture?”, show that Congress created a narrow exception to normal partnership treatment just for married couples.
For non‑spouse individuals:
- A joint venture is usually treated as a partnership for tax purposes if it constitutes a trade or business with profit motive.
- The venture may need its own Employer Identification Number (EIN) and may file Form 1065, with each venturer receiving a Schedule K‑1.
The Internal Revenue Service’s general guidance on small‑business partnerships and the special rules for qualified joint ventures show that profit‑sharing and co‑ownership tend to trigger partnership treatment even when the parties are “just individuals” and the project is limited.
Federal Regulatory and Liability Considerations
Federal law also surfaces in:
- Securities law, if individuals raise money from other investors to fund the joint venture.
- Federal employment and tax withholding rules if the joint venture has employees.
- Federal lending or consumer protection regulations, if the joint venture provides certain services.
The California Law Review article “A Theory of Corporate Joint Ventures” emphasizes how joint ventures, especially at larger scales, sit at the intersection of multiple legal regimes (partnership law, corporate law, and regulatory regimes). For individuals, that same intersection exists, just on a smaller scale. You may need to comply with federal tax and labor law even while your basic joint venture structure is governed by state partnership and contract law.
How State Law Treats Joint Ventures Between Individuals
There is no single uniform joint venture statute across all states, so courts rely on common law principles and partnership statutes.
General State Law Approach
The Cornell Wex “joint venture” article notes that there is no statutory definition of “joint venture” and that courts in states like New York look at specific factors, including agreement, mutual contributions, joint control, and profit and loss sharing. The USLegal “Distinction Between Joint Venture and Partnerships” article adds that joint ventures are usually governed by partnership principles and that joint venturers can be jointly and severally liable for each other’s wrongful acts in the course of the venture.
The Los Angeles Litigation Lawyers “Joint Ventures” page shows how California courts treat joint ventures much like partnerships, applying Civil Code and partnership concepts to impose joint and several liability for obligations incurred within the venture. That page cites California authority to explain that joint venturers, like partners, can be jointly liable for torts committed by a co‑venturer in furtherance of the joint venture.
California
California does not have a separate joint venture statute, but its courts apply partnership law to joint ventures. The Los Angeles Litigation Lawyers resource on “Joint Ventures” explains that the “incidents” of a joint venture are essentially the same as those of a partnership, and that all partners (or joint venturers) are jointly and severally liable for obligations, regardless of their individual percentage interest.
For two individuals in California who form a joint venture:
- They may owe fiduciary duties of loyalty and care to each other, like partners.
- They may both be liable for contracts or torts entered into by one venturer within the scope of the joint venture.
- If their relationship becomes ongoing and broader than one deal, a court may treat them as partners in a general partnership.
The California Law Review article “A Theory of Corporate Joint Ventures” also discusses California’s treatment of partnership duties and how courts enforce fiduciary obligations in joint venture settings, even when the joint venture includes corporate entities.
New York and Other States
The Cornell Wex “joint venture” article notes that New York courts recognize joint ventures and apply the four‑factor test mentioned above. USLegal’s joint venture analysis cites cases from multiple states that describe joint ventures as partnerships for a single enterprise and apply partnership rules to determine liability and duties.
In general across states:
- Individual joint venturers will probably be treated as partners for liability and fiduciary duty purposes.
- Courts will look at the parties’ conduct and the scope of their project to decide whether there is a joint venture versus a broader general partnership.
If you are in a specific state such as New York, Illinois, or Texas, it is wise to review state case law or consult counsel, as reflected in the state‑specific examples in sources like USLegal’s joint venture article and the Illinois‑focused “Legal Dictionary—Joint Venture” page from the Elder Law and Resource Law Firm.
Real‑World Scenario Tables
Scenario 1: Two Friends Flip a House Together
| House flip plan | Practical result |
|---|---|
| Two friends agree orally to buy, renovate, and sell one house, each contributing half the cash and sharing decisions and profits. | A court in a state like California or Illinois is likely to treat this as a joint venture, applying partnership principles and joint liability, consistent with USLegal’s joint venture analysis and California case discussions on the Los Angeles Litigation Lawyers site. |
| One friend signs the construction contracts and the other never directly signs anything, but both are seen as co‑owners and both make decisions. | If a subcontractor sues for nonpayment, both friends can be held liable as joint venturers because they shared control of the venture and expected to share profits, as described in sources explaining joint and several liability for joint venturers. |
Scenario 2: Two Freelancers Partner on a Big Client Project
| Project structure | Practical result |
|---|---|
| A designer and a copywriter pitch a large website project together, both appear in meetings, and they agree to split the project fee 50/50. | This looks like a joint venture under the elements listed in the Cornell Wex “joint venture” resource, because both contribute labor, share control of the project, and share profits, so partnership‑like duties and liability can arise. |
| The copywriter makes a serious mistake that leads to the client suing both people. | Under the partnership principles that USLegal notes apply to joint venturers, the designer may still be liable to the client as a joint venturer, even if the designer did not personally make the error. |
Scenario 3: Married Couple Runs an Unincorporated Business
| Business and tax choice | Practical result |
|---|---|
| A married couple runs a small unincorporated business together and files a joint return, but never elects “qualified joint venture” status. | For federal tax purposes, the IRS guidance on “Married couples in business” indicates that this is generally treated as a partnership, so they may need to file a partnership return, even if under state law they are joint venturers or partners. |
| They elect qualified joint venture treatment under Internal Revenue Code section 761(f) as described in the IRS “Election for married couples unincorporated businesses” and the Tax Adviser article. | For federal tax, each spouse reports their share on a separate Schedule C and is treated as a sole proprietor, but state law may still treat them as a joint venture or partnership with shared fiduciary duties and liability. |
Key Terms Every Individual Joint Venture Agreement Should Cover
Even though courts can find a joint venture based on conduct alone, a written agreement between individuals is crucial. The Cornell Wex “joint venture” article and the USLegal joint venture discussion both emphasize the importance of agreement and clear terms.
Important clauses include:
- Purpose and scope
Define exactly what project or enterprise the joint venture covers, and make clear that it does not create a general partnership beyond that. This is one way to help preserve the single‑transaction nature described in the USLegal “Distinction Between Joint Venture and Partnerships” article. - Contributions
Specify what each person contributes: cash, property, labor, contacts, or intellectual property. This matches the mutual contribution element identified in the Cornell Wex “joint venture” entry. - Profit and loss sharing
State how profits and losses will be split. If losses are not addressed, courts may infer sharing based on profit splits, as shown in several state court analyses cited in USLegal’s joint venture discussion. - Management and decision‑making
Clarify who can make day‑to‑day decisions and how major decisions require joint approval. This is directly related to the “joint control” element discussed in the Cornell Wex resource and in the California joint ventures case law summarized by the Los Angeles Litigation Lawyers. - Fiduciary duties and conflicts of interest
Incorporate duties of loyalty and care and address conflicts, especially if either person has other businesses. The California Law Review article “A Theory of Corporate Joint Ventures” describes how overlapping fiduciary duties can be a major legal challenge in joint ventures, even when the participants are entities; individuals can face similar conflicts. - Duration and termination
Identify when the joint venture ends (for example, after the property is sold or the project is complete) and how assets and liabilities will be wound up. - Dispute resolution
Choose a forum (courts or arbitration), governing law, and procedures for resolving disagreements. Many law firm materials on joint venture disputes, such as the Los Angeles Litigation Lawyers page, show how disputes can quickly escalate without clear clauses. - Liability and indemnification
Explain whether and how one venturer will indemnify the other for certain acts, recognizing that third parties may still treat them as jointly liable under partnership principles, as described in the USLegal joint venture article.
Why the “Why” Matters: Consequences of Getting It Wrong
Hidden Partnerships and Unexpected Liability
If two individuals act like joint venturers or partners without a written agreement, courts can still find a joint venture or partnership exists. The USLegal “Distinction Between Joint Venture and Partnerships” article and the Los Angeles Litigation Lawyers “Joint Ventures” page illustrate that once a joint venture is found, joint venturers can be jointly and severally liable for each other’s wrongful acts.
This means:
- One individual could be sued for the other’s contracts or torts committed within the scope of the project.
- Creditors may go after personal assets if the venture has no separate entity shield.
Tax Surprises
The IRS’s guidance for “Married couples in business” and the joint venture election on “Election for married couples unincorporated businesses,” as well as the Tax Adviser piece on “LLC owned solely by spouses: A partnership or a joint venture?”, show how easy it is to trigger partnership‑style tax treatment. If individuals share profits and actively carry on a business, they may need to file partnership tax returns, even if they thought they were simply splitting a side gig.
Failure to file the correct returns can lead to:
- Penalties and interest for late or missing partnership returns.
- Complicated correction and amended filings later.
Mistakes to Avoid in Individual Joint Ventures
- Treating the joint venture as “just informal” and never putting terms into writing, which makes it more likely that a court or the IRS will fill in gaps using partnership and joint venture default rules, as described in the Cornell Wex and USLegal resources.
- Ignoring liability risk and assuming that because you are “just individuals working together,” you will not be responsible for your partner’s actions, even though the Los Angeles Litigation Lawyers “Joint Ventures” page shows that joint and several liability can apply.
- Misclassifying the venture for tax purposes, such as ignoring that a two‑person profit‑seeking business may be a partnership for federal tax, according to the IRS guidance in “Married couples in business” and related materials.
- Failing to define the scope and duration of the joint venture, which makes it easier for courts to find that you have an ongoing general partnership instead of a limited joint venture, as warned in the USLegal “Distinction Between Joint Venture and Partnerships” article.
- Overlooking fiduciary duties and conflicts, even though the California Law Review article “A Theory of Corporate Joint Ventures” reveals how serious fiduciary conflicts can be when joint venturers have other businesses or obligations.
Do’s and Don’ts for Individual Joint Ventures
Do’s
- Do clearly define the project, scope, and end point of your joint venture in writing, so you keep it aligned with the single‑enterprise structure described in the USLegal joint venture discussion.
- Do specify contributions, profit and loss sharing, and management roles using the elements outlined in the Cornell Wex “joint venture” article to reduce ambiguity.
- Do consider forming an LLC or other limited liability entity as the vehicle for the joint venture, leveraging limited liability principles discussed in corporate joint venture analyses like the California Law Review article.
- Do address fiduciary duties, conflict‑of‑interest rules, and confidentiality in your joint venture agreement to avoid later disputes of the kind discussed in joint venture litigation materials like the Los Angeles Litigation Lawyers page.
- Do consult local counsel and tax professionals, especially in states like California and New York where courts apply partnership principles to joint ventures, as reflected in the Cornell Wex and USLegal resources.
Don’ts
- Don’t assume that avoiding the words “partnership” or “joint venture” in your agreement will prevent courts or the IRS from treating your arrangement as such if the factual elements are present, as Cornell’s Wex article notes that joint ventures are determined case by case.
- Don’t rely on handshake deals or texts alone for complex or high‑value projects, because USLegal’s joint venture analysis and litigation examples show how disputes frequently hinge on fuzzy oral terms.
- Don’t ignore tax filing obligations created by profit‑sharing, especially if the IRS would see your venture as a partnership absent a specific “qualified joint venture” election in the case of spouses, as described on the IRS pages.
- Don’t assume your personal assets are safe just because there is no formal partnership; joint venturers can still face joint and several liability as explained in the Los Angeles Litigation Lawyers “Joint Ventures” discussion and in USLegal’s analysis.
- Don’t mix personal and joint venture funds without any record, because commingling can make it easier to pierce any entity veil you create and can blur the factual record used by courts applying the Cornell Wex joint venture test.
FAQs: Joint Ventures Between Individuals
Can two individuals form a joint venture without a company?
Yes. Two individuals can form a joint venture by agreeing to pursue a specific project for profit, sharing contributions, control, and profits, as described in the Cornell Wex “joint venture” definition and similar state law explanations.
Is a joint venture between individuals always treated as a partnership?
No. Many courts and the IRS often treat joint ventures like partnerships for liability and tax, as discussed by USLegal and IRS guidance, but classification can vary based on structure, participants, and elections.
Do individual joint venturers always need a written agreement?
No. Courts can find a joint venture based on conduct, as Cornell’s Wex article notes, but lack of a written agreement increases risk and leaves courts to fill gaps with partnership law and default rules.
Can married couples be treated as a joint venture for tax purposes?
Yes. Married couples running a joint business can be treated like a partnership unless they elect “qualified joint venture” status under section 761(f), as explained in the IRS “Married couples in business” and “Election for married couples unincorporated businesses” materials.
Does forming an LLC automatically prevent joint venture liability?
No. Using an LLC helps shield owners, but courts can still apply fiduciary and contractual duties among venturers, and improper formalities or personal guarantees can expose individuals, as discussed in the California Law Review’s joint venture article and in joint venture dispute materials.
Can a joint venture between individuals be long‑term?
Yes. Some joint ventures last for multiple projects or years, but if the relationship becomes very broad and ongoing, courts may treat it as a general partnership, consistent with the distinctions explained in USLegal’s “Distinction Between Joint Venture and Partnerships” article.
Are joint venturers always liable for each other’s actions?
No. Liability depends on scope and authority, but joint venturers can be jointly and severally liable for acts within the venture’s course, as described in the Los Angeles Litigation Lawyers “Joint Ventures” page and USLegal’s joint venture liability discussion.
Can individuals from different states create a joint venture together?
Yes. Individuals from different states can form a joint venture, but they should choose governing law and forum in their agreement because states apply joint venture and partnership rules somewhat differently, as reflected in sources like Cornell’s Wex article and USLegal’s cross‑state case summaries.
Does calling an agreement a “collaboration” avoid joint venture status?
No. Courts look at substance—agreement, contributions, joint control, and profit sharing—rather than labels, as emphasized in the Cornell Wex “joint venture” entry and state‑level analyses in USLegal’s joint venture article.
Can an individual joint venture exist for non‑profit activities?
No. Joint ventures are typically defined as profit‑seeking projects, as the Cornell Wex article and USLegal joint venture definitions explain; cooperative non‑profit projects are usually treated under different legal frameworks.