# Co-Marketing Partnership Brief: Deliverables and Rights.
> Plan a co-marketing partnership with a brief that names each deliverable, who accepts it, the rights for each use and who owns the leads.
Source: https://scayverstaging.1wp.site/blog/co-marketing-partnership/
A plain guide for business owners planning a joint webinar, guide or event, with a partner brief template that settles deliverables, rights and leads first.
Start reading [All articles](https://scayverstaging.1wp.site/blog/)
**Written by**
Scayver
**Published**
19 October 2026
**Reading time**
15 min
A co-marketing partnership is two businesses promoting one shared asset, such as a webinar, guide or event, to both of their audiences. It works when a short brief settles five things before anyone starts. Those are what each partner makes, who accepts it, which uses are allowed, who keeps the leads and when it ends.
Most partnerships start with a good conversation. Two owners notice that their customers overlap, one has a strong email list and the other has the expertise, and a joint webinar sounds like an easy win. The trouble usually shows up later. A slide deck arrives two days before launch with nobody assigned to approve it.
Or a partner cuts the recording into ads you never agreed to. Registrations land in one company’s email tool and the other side never sees them.
None of that needs a lawyer to prevent. It needs a plain document both sides read and sign off before work begins. This guide walks you through that document, gives you a template you can copy and shows a hypothetical example filled in. It is general guidance, not legal advice. Have a lawyer review the final agreement, especially when money, personal data or trademarks are involved.
## Co-marketing partnerships explained, and what they are not.
In a co-marketing partnership, each business brings something the other lacks and both promote the result. Common formats include a joint webinar, a co-written guide, a shared event, a bundled offer or a newsletter swap. The goal is reach and leads from an audience that already trusts your partner.
It helps to separate three ideas that often get mixed up.
- **Co-marketing** promotes a shared piece of marketing. Each business keeps selling its own products.
- **Co-branding** creates a new product or offer that carries both names. That usually needs a deeper agreement.
- **Sponsorship** is one business paying to appear in front of another’s audience. The money changes the obligations and the disclosure rules.
This article covers the first one. The brief still applies to the others, but co-branding and sponsorship add licensing and payment terms that go beyond it. If you are paying for placement, confirm what was delivered against what you paid for.
A co-marketing partnership also differs from a single campaign you run alone. When you plan your own campaign, one person decides. When two companies share one asset, every decision has two owners unless you name one. That is the main reason a partner brief exists.
## Choose a partner whose audience and goal fit yours.
The brief will not rescue a poor match. Before you write anything, check three things about the partner.
### Their audience overlaps yours but does not compete for it.
The best partners serve the same customers with a different product. An accounting firm and a payroll software reseller both talk to small business owners, but neither sells what the other sells. A direct competitor rarely makes a good co-marketing partner, because each side holds back its best material.
### Their goal is compatible with yours.
Ask each other plainly what success looks like. One partner may want email sign-ups. The other may want booked calls. Both can work in the same campaign, but only if you say so up front. If one side measures success in leads and the other in brand exposure, decide now whose number the campaign is built to move.
### Their reputation is one you are happy to stand beside.
Your logo will sit next to theirs. Read their reviews, look at how they treat their own email list and check how they talk about competitors. If anything makes you uneasy, it will make your customers uneasy too.
If you are still working out what your own marketing should achieve this year, that is a strategy question before it is a partnership question. A [creative marketing strategy](https://scayverstaging.1wp.site/services/marketing/creative-marketing-strategy/) sets the goal a partnership has to serve.
## Five questions every partner brief must answer.
A partner brief is a short planning document, usually one to three pages, that both businesses agree to before work starts. It is not the contract. It is the plain-language plan the contract will later describe. Many disagreements end before they begin because the brief forces both sides to answer the same five questions.
1. **Who makes each deliverable?** Every slide deck, landing page, email and recording has one producing partner and one named person.
2. **Who accepts it?** Acceptance means a named person on the receiving side confirms the deliverable meets the agreed test. Without a name, approval drifts.
3. **Which uses are allowed?** Each piece of content gets a list of permitted uses. Posting the recording on your site is not the same as cutting it into paid ads.
4. **Whose leads are they?** The sign-up form decides this. People can only be added to the lists they were told about.
5. **When does it end?** A finish date, what comes down afterwards and what each side may keep using.
Published guides to co-marketing agreements, such as [HyperStart’s overview of agreement elements](https://www.hyperstart.com/blog/co-marketing-agreement/) from January 2026, list ownership, lead use and termination as standard clauses. They are right to. The brief turns those clauses into specific answers for this campaign, so nobody has to interpret a general clause under deadline pressure.
## Name each deliverable and the person who accepts it.
Write every deliverable as a row, not a sentence. A row forces you to fill in the parts people skip. Each row needs five fields.
- **Deliverable.** What it is, in words a stranger would understand.
- **Producer.** The partner and the person who makes it.
- **Acceptor.** The person on the other side who signs it off.
- **Acceptance test.** What “done” means, in terms both sides can check.
- **Due date.** When it reaches the acceptor, not when it goes live.
### Write acceptance tests you can check.
“Looks good” is not an acceptance test. A useful test is something the acceptor can confirm in a few minutes. Examples include “slides use both logos at equal size”, “landing page form sends a test registration to both inboxes” or “email copy matches the approved event description”.
Give the acceptor a reply window, such as two working days. Agree what happens if the window passes without an answer. Some partners treat silence as approval. Others treat it as a hold. Either is fine if you write it down.
### Separate shared decisions from single-owner decisions.
Some choices genuinely need both sides, such as the event title, the date and the offer. Most do not. Slide colours, email send times and the order of speakers can belong to one partner. Mark each decision as shared or single-owner in the brief. You will move faster, and the shared list will show you where to spend your meeting time.
### Keep one source of truth.
Put the deliverables table in one shared document and update it there. When a date moves or an acceptor changes, the brief changes too. Email threads are where agreements go to get lost.
## Set content rights for each use, not the whole project.
Rights cause more partner arguments than anything else, because people assume “we made it together” settles them. It does not. Content made by one partner’s staff usually belongs to that partner. Work by an outside contractor may belong to the contractor unless a written agreement transfers it. The other side then needs permission for each way it wants to use the content.
The practical fix is to list uses, not ownership. Ownership questions can wait for the lawyer. Use questions need answers before launch. Set a yes, no or ask-first for each one.
| Use | Typical risk | What to write down |
| --- | --- | --- |
| Post on your own site and channels | Low | Which assets, and whether the partner’s logo must appear |
| Share on the partner’s channels | Low | Same as above, plus the link each side uses |
| Short clips and quotes | Medium | Who may cut them and whether the speaker approves each clip |
| Edited or translated versions | Medium | Whether edits need the producer’s approval |
| Paid ads | High | Which assets, which ad platforms, how long, and spend limits |
| Use after the partnership ends | High | What each side may keep, for how long and with what label |
### Paid ads deserve their own line.
Turning a partner’s content into ads changes how it reaches people and who appears to endorse what. Name the assets allowed in ads, the platforms and an end date. If a speaker appears on camera, get their approval for ad use as well as the partner’s. Apply the same rights and approval check to content made by outside creators.
### Logos and brand rules travel with the content.
Each partner should share its logo files and the basic rules for using them, such as minimum size and clear space. Agree that neither side changes the other’s logo or name. If a partner later rebrands, decide whether old materials stay up or get replaced.
### Disclose the relationship where it matters.
When a business connection would change how people judge a recommendation, say so clearly. The FTC’s [Endorsement Guides question and answer page](https://www.ftc.gov/business-guidance/resources/ftcs-endorsement-guides-what-people-are-asking) explains that a material connection, including a business or payment relationship, should be disclosed clearly and conspicuously. That page reflects guides revised in 2023, and its examples centre on endorsers and influencers. Ask your lawyer how it applies to your specific promotion.
## Agree who owns the leads and what people agreed to.
The registration form is where lead ownership gets decided. Whatever people are told when they sign up limits what each partner may do with their details afterwards. If the form only mentions one company, the other company has no clear permission to email those people.
### Put the consent wording on the form.
Write the sign-up wording into the brief so both sides approve it. A simple pattern names both businesses and gives each its own choice.
- A required line saying both partners will receive the registration so they can run the event.
- An optional checkbox for updates from the first partner.
- An optional checkbox for updates from the second partner.
Each partner then adds only the people who ticked its box to its marketing list. Everyone else gets event messages and nothing more. Check the privacy rules that apply where your audience lives, because consent requirements differ between countries and some US states.
### Know who sends what.
In the US, commercial email falls under the CAN-SPAM Act. The FTC’s [CAN-SPAM compliance guide for business](https://www.ftc.gov/business-guidance/resources/can-spam-act-compliance-guide-business) (August 2023, edited January 2024) says marketers promoting together in one message may designate one of them as the sender. It also warns that if that sender fails its obligations, every marketer in the message may be held liable.
The same guide says opt-out requests must be honoured within 10 business days. Hiring someone else to send your email does not remove your responsibility.
For the brief, that means three plain decisions. Name which partner sends each email. Agree how an opt-out from one list reaches the other side. Agree how fast you will share opt-outs, well inside 10 business days. This is a summary of one guide, not legal advice, so confirm the details with counsel.
### Decide where the registrations live.
Pick one system that collects registrations, then agree how and when the other partner receives its share. A daily export or a direct connection both work. What fails is two forms, two lists and a spreadsheet nobody reconciles. If you run follow-up emails after the event, sort registrants by what they need next.
## The co-marketing partnership brief template.
Copy the template below into a shared document and fill in every line. Leave nothing blank. If you cannot answer a line, that is a question for your next call, not something to sort out after launch. This template is a planning tool, not a contract. Your lawyer can turn the agreed answers into the agreement itself.
### Part 1: the partnership.
| Field | Your answer |
| --- | --- |
| Partners | Business names and the main contact at each |
| Campaign | One sentence describing the shared asset or event |
| Goal for each partner | What each side counts as success |
| Audience | Who the campaign is for, in plain words |
| Start and end dates | When work begins and when the partnership closes |
| Money | Who pays for what, or “no money changes hands” |
### Part 2: deliverables and acceptance.
| Deliverable | Producer | Acceptor | Acceptance test | Due to acceptor |
| --- | --- | --- | --- | --- |
| Example: landing page | Partner A, named person | Partner B, named person | Both logos, form sends to both inboxes | Date |
| Add one row per item | | | | |
Reply window for acceptance: write the number of working days and what silence means.
### Part 3: content rights by use.
| Asset | Own channels | Partner channels | Clips | Edits | Paid ads | After the end |
| --- | --- | --- | --- | --- | --- | --- |
| Example: webinar recording | Yes | Yes | Ask first | Ask first | No | Keep on site with partner credit |
| Add one row per asset | | | | | | |
### Part 4: leads, consent and email.
| Field | Your answer |
| --- | --- |
| Registration system | Which tool collects sign-ups |
| Consent wording | The exact lines and checkboxes on the form |
| Lead sharing | What each partner receives, how and how often |
| Email sender | Which partner sends each message |
| Opt-out handling | How opt-outs reach the other side and how fast |
| Disclosure | Where the partnership is stated to the audience |
### Part 5: reporting and close-out.
| Field | Your answer |
| --- | --- |
| Shared numbers | The figures both sides report, and from which system |
| Report date | When the shared report is due |
| What comes down | Pages, ads or links removed at the end |
| What stays | Content each side may keep, and with what credit |
| Data after the end | What happens to shared registration data |
| Sign-off | Names of the two people who approve this brief |
## A hypothetical joint webinar brief, filled in.
Here is a hypothetical example to show the template in use. A bookkeeping firm and a small business insurance broker plan a one-hour webinar on getting ready for tax season. Both serve owners of small service businesses. Neither sells the other’s product.
**Deliverables.** The bookkeeper produces the slide deck and presents the first half. The broker produces the landing page, the registration form and three promotional emails. The bookkeeper’s marketing lead accepts the landing page and emails. The broker’s owner accepts the slides. Each acceptor has two working days to reply, and silence means “hold”.
**Rights.** Both partners may post the recording on their own sites and social channels with both logos visible. Clips need the speaker’s approval. Neither side runs the recording as a paid ad. After the end date, each partner may keep the recording on its site with a credit line naming the other.
**Leads.** The broker’s form says both businesses receive registrations to run the event. Two optional checkboxes let people choose updates from either business. The broker sends a daily export to the bookkeeper with only the people who ticked the bookkeeper’s box, plus every opt-out request it receives.
**Close-out.** Thirty days after the webinar, both sides share registrations, attendance and opted-in contacts from the one registration system. The broker removes the landing page and the bookkeeper removes its event banner.
Notice what the example does not include. There are no projected numbers, because neither partner knows yet how many people will register. The brief sets the rules. The results come later, and the report tells you whether to run it again.
## Run the campaign and report numbers both sides trust.
Once the brief is signed, the work is ordinary campaign management. The difference is that two calendars, two teams and two email tools have to stay in step.
### Hold a short weekly check-in.
Fifteen minutes is often enough. Review the deliverables table, confirm what is due for acceptance this week and flag anything that has slipped. Keep notes in the brief document itself.
### Agree the numbers before launch.
Choose a small set of shared numbers and the system each comes from. Useful ones include registrations, attendance, opted-in contacts for each partner and follow-up meetings booked. Pull them from one source where you can. Two partners counting from two tools will produce two different totals, and each will trust its own.
### Track each partner’s promotion separately.
Give each partner its own tracked link to the landing page. Then you can see which audience responded without arguing about it. If one partner’s emails drove most of the registrations, that is useful to know for the next campaign. It does not need to become a dispute about this one.
If you run several campaigns at once, partner work is easy to let slip. [Campaign management](https://scayverstaging.1wp.site/services/marketing/campaign-management/) can keep the schedule, the approvals and the reporting moving while your team handles the content.
## Close the partnership cleanly when it ends.
The end date in the brief matters as much as the start date. Without it, a partnership slowly fades. Old landing pages stay live, ads keep running and nobody is sure whether they still have permission to use the recording.
Run a short close-out against Part 5 of the template.
1. Share the final report with both partners.
2. Remove the pages, links and ads the brief lists under “what comes down”.
3. Confirm the credit line on anything that stays up.
4. Apply the agreed rule for shared registration data, including any deletion.
5. Pass on any late opt-out requests to the other side.
6. Decide together whether to run another campaign, and write down what you would change.
That last step is where good partnerships grow. A second campaign with the same partner is usually easier, because the brief already exists and both teams know how the other works. You can copy the old brief, change the dates and deliverables and start the conversation from there.
If you want a wider view of planning a campaign of your own, our [one-page creative brief template](https://scayverstaging.1wp.site/resources/the-one-page-creative-brief-template/) covers the single-company version of this document.
## Final thoughts on co-marketing partnerships.
A co-marketing partnership is two teams agreeing to share an audience they each worked hard to build. That trust deserves a plan. The brief does not need to be long. It needs to answer the five questions in writing, before either side spends time or audience.
Start with the template. Fill in every line with your partner on a single call, and treat any blank as a question you have not answered yet. Then hand the agreed answers to a lawyer so the contract matches the plan.
If you would like help shaping the campaign, the offer or the follow-up that turns registrations into customers, [talk to a specialist](https://scayverstaging.1wp.site/talk-to-a-specialist/) about planning your next co-marketing partnership.
Was this article helpful?
Same category
## The rest of Digital Marketing.
-
### [Weekly Social Media Content Plan Your Team Can Finish.](https://scayverstaging.1wp.site/blog/weekly-social-media-plan/)
Build a weekly social media content plan from the hours your team truly has. Size the post count, write full copy and use the free plan sheet.
5 November 2026.
-
### [Trade Show Demo Script Your Booth Team Can Deliver.](https://scayverstaging.1wp.site/blog/trade-show-demo/)
Get a trade show demo script with full spoken words, seven visitor branches, fallbacks and follow-ups that never promise a meeting nobody booked.
4 November 2026.
-
### [How to Run a Small Marketing Experiment, Step by Step.](https://scayverstaging.1wp.site/blog/small-marketing-experiment/)
Run a small marketing experiment that answers a real decision. Set a budget cap, an end date and a stop rule, then fill in the free worksheet.
2 November 2026.
-
### [Sponsorship Report: Check Delivery Against the Deal.](https://scayverstaging.1wp.site/blog/sponsorship-report/)
A sponsorship report should prove each sponsor benefit was delivered. Use a six-line ledger to match evidence to the deal and fix shortfalls.
21 October 2026.
-
### [Cancellation Flow: Match the Response to the Reason.](https://scayverstaging.1wp.site/blog/cancellation-flow/)
Build a cancellation flow that matches each churn reason to a remedy you can deliver. See six worked cases and copy the ledger template.
15 October 2026.
-
### [Creating Evergreen Content That Earns Year-Round.](https://scayverstaging.1wp.site/blog/creating-evergreen-content/)
Learn how to create evergreen content that keeps bringing leads and sales. Pick lasting topics, build each page to convert and refresh it on a schedule.
11 August 2025.
-
### [Niche Affiliate Marketing: How to Choose Your Niche.](https://scayverstaging.1wp.site/blog/niche-affiliate-marketing/)
Niche affiliate marketing starts with the right niche. Score yours on five tests, vet the programs and disclose links properly before you build.
30 July 2025.
-
### [How Email Segmentation Improves Engagement.](https://scayverstaging.1wp.site/blog/email-segmentation/)
Email segmentation sends each group of subscribers the message that fits. Build your first three segments, set them up in your tool and measure clicks.
3 June 2025.
-
### [How to Improve Email Open Rates and Reach the Inbox.](https://scayverstaging.1wp.site/blog/improve-email-open-rates/)
Improve email open rates the honest way. Fix SPF, DKIM and DMARC, meet Gmail and Yahoo sender rules, and write subject lines people trust.
3 June 2025.
-
### [Personal Branding on Social Media for Business Owners.](https://scayverstaging.1wp.site/blog/personal-branding-on-social-media/)
Personal branding on social media for business owners. Set up a profile that backs your company brand, post on a steady rhythm and track the inquiries.
3 June 2024.
-
### [How to Write Blog Articles That Bring In Customers.](https://scayverstaging.1wp.site/blog/articles-that-bring-in-customers/)
Learn how to write blog articles that bring in customers. Seven steps from buyer question to inquiry, with safe AI use and simple tracking. Start today.
3 June 2024.
-
### [Integrated Marketing for Small Business: A Simple Plan.](https://scayverstaging.1wp.site/blog/integrated-marketing-for-small-business/)
Learn integrated marketing for small business. Give each channel one job, connect your CRM and email, and measure the whole path from click to reply.
3 June 2024.
-
### [Easy Affiliate Marketing for Automated Income.](https://scayverstaging.1wp.site/blog/easy-affiliate-marketing-for-automated-income/)
Covers picking a niche, judging which affiliate products actually pay, and building the site and product setup behind more automated affiliate income.
3 June 2024.
-
### [100 Actionable SEO Tips for Driving More Website Traffic.](https://scayverstaging.1wp.site/blog/100-actionable-seo-tips-for-driving-more-website-traffic/)
One hundred short, numbered SEO tips covering domain choice, keyword research, content quality, images, competitors, and making sure your site can be crawled.
3 June 2024.
-
### [Copywriting Basics and Terminology.](https://scayverstaging.1wp.site/blog/copywriting-basics-and-terminology/)
The vocabulary and the fundamentals: what copywriting is for, how to define a target market, and how to sharpen and edit your own copy.
2 June 2024.
Keep reading
## More articles.
The rest of the blog, newest first.
- [5 November 2026 Weekly Social Media Content Plan Your Team Can Finish.](https://scayverstaging.1wp.site/blog/weekly-social-media-plan/)
- [4 November 2026 Trade Show Demo Script Your Booth Team Can Deliver.](https://scayverstaging.1wp.site/blog/trade-show-demo/)
- [3 November 2026 Customer Segmentation That Changes What You Do Next.](https://scayverstaging.1wp.site/blog/customer-segmentation/)
- [2 November 2026 How to Run a Small Marketing Experiment, Step by Step.](https://scayverstaging.1wp.site/blog/small-marketing-experiment/)
- [30 October 2026 How to Analyze Customer Feedback From Mixed Sources.](https://scayverstaging.1wp.site/blog/customer-feedback-analysis/)
- [29 October 2026 Automation Permissions: What to Approve Before You Connect.](https://scayverstaging.1wp.site/blog/automation-permissions/)
- [28 October 2026 Choose an Automation Platform: Who Fixes It When It Fails?](https://scayverstaging.1wp.site/blog/choose-an-automation-platform/)
- [27 October 2026 What Should a Web Form Change in Your CRM?](https://scayverstaging.1wp.site/blog/web-form-crm-update-rules/)
- [26 October 2026 Integration Requirements to Write Before Connecting Apps.](https://scayverstaging.1wp.site/blog/integration-requirements/)
- [23 October 2026 WordPress Plugin or Custom Build? Define the Process First.](https://scayverstaging.1wp.site/blog/plugin-or-custom-development/)
- [22 October 2026 AI Marketing Workflow vs Manual Work: A Fair Test.](https://scayverstaging.1wp.site/blog/ai-marketing-workflow-vs-manual/)
- [21 October 2026 Sponsorship Report: Check Delivery Against the Deal.](https://scayverstaging.1wp.site/blog/sponsorship-report/)
- [20 October 2026 How to Prioritize Marketing When Your Team Is Small.](https://scayverstaging.1wp.site/blog/prioritize-marketing-small-team/)
- [16 October 2026 How to Do a Competitor Analysis You Can Keep Current.](https://scayverstaging.1wp.site/blog/competitor-analysis/)
- [15 October 2026 Cancellation Flow: Match the Response to the Reason.](https://scayverstaging.1wp.site/blog/cancellation-flow/)
- [6 October 2026 Why We Rebuilt the Scayver Graphix Website.](https://scayverstaging.1wp.site/blog/scayver-graphix-website-rebuild/)
- [3 October 2026 Five AI System Design Mistakes to Avoid.](https://scayverstaging.1wp.site/blog/ai-system-design-mistakes/)
- [3 October 2026 100 AI Terms Explained in Plain English.](https://scayverstaging.1wp.site/blog/ai-terms-explained/)
- [11 August 2025 Website Design That Increases Sales: 6 Page Fixes.](https://scayverstaging.1wp.site/blog/website-design-that-increases-sales/)
- [3 June 2025 How Email Segmentation Improves Engagement.](https://scayverstaging.1wp.site/blog/email-segmentation/)
- [3 June 2025 Best CRM for Customer Retention: 5 Tools Compared.](https://scayverstaging.1wp.site/blog/best-crm-for-customer-retention/)
- [3 June 2025 How to Improve Email Open Rates and Reach the Inbox.](https://scayverstaging.1wp.site/blog/improve-email-open-rates/)
- [16 August 2024 Professional Logo Design Process: Steps, Costs, Files.](https://scayverstaging.1wp.site/blog/professional-logo-design-process/)
- [3 June 2024 Personal Branding on Social Media for Business Owners.](https://scayverstaging.1wp.site/blog/personal-branding-on-social-media/)
- [3 June 2024 How to Build a Brand for a Small Business in 8 Steps.](https://scayverstaging.1wp.site/blog/how-to-build-a-brand/)
- [3 June 2024 How to Write Blog Articles That Bring In Customers.](https://scayverstaging.1wp.site/blog/articles-that-bring-in-customers/)
- [3 June 2024 Integrated Marketing for Small Business: A Simple Plan.](https://scayverstaging.1wp.site/blog/integrated-marketing-for-small-business/)
- [3 June 2024 100 Actionable SEO Tips for Driving More Website Traffic.](https://scayverstaging.1wp.site/blog/100-actionable-seo-tips-for-driving-more-website-traffic/)
- [2 June 2024 Copywriting Basics and Terminology.](https://scayverstaging.1wp.site/blog/copywriting-basics-and-terminology/)
FAQ
## Questions about co-marketing partnerships
The things people ask on the first call. If yours is not here, ask us directly.
[Ask us directly](https://scayverstaging.1wp.site/talk-to-a-specialist/?form=book)
**Do we need a formal contract for a small co-marketing partnership?**
A signed brief covers the planning, but a short written agreement is still wise once money, personal data or logos change hands. Many small partners turn the agreed brief into a simple contract reviewed by a lawyer. The brief makes that review faster and cheaper, because every commercial decision is already answered in plain words.
**How should we split costs in a co-marketing partnership?**
Split costs by who controls the spend rather than by a fixed share. The partner that runs the landing page pays for its tools, and each side pays for its own promotion. Shared costs, such as a speaker fee or venue, belong in Part 1 of the template with an agreed limit and the name of the person who approves spending.
**What if a partner misses a deadline or delivers poor work?**
Go back to the deliverables table. If the acceptance test is clear, the acceptor can say exactly what fails and ask for a fix by a new date. Agree in advance what happens when a key item is late, such as moving the launch, dropping that item or ending the campaign without either side owing the other.
**Can we run a co-marketing partnership with a competitor?**
It is possible but rarely works well. Both sides worry about the other contacting their customers, and each tends to guard its pricing and methods. If you go ahead, pick a topic neither of you sells directly, such as a rule change your shared customers must understand. Keep lead sharing tightly limited and agree it in writing.
**How do we find a good co-marketing partner?**
Start with businesses your customers already buy from before or after they buy from you. Ask a few loyal customers which other providers they use and trust. Look for a partner with a similar audience size and an active email list or channel. Propose one small campaign first, so both sides can test the fit before a bigger commitment.