--- title: Co-Marketing — definition | RGM® Glossary url: https://realgrowthmatters.com/glossary/co-marketing/ updated: 2026-06-10 source_html: https://realgrowthmatters.com/glossary/co-marketing/ --- # Co-Marketing co-mar·ket·ingnoun Borrowed trust at shared cost — two brands, one campaign, and each side walks away with the other's audience warmed up. Term : Co-Marketing Is : Brands marketing one thing together Shares : Cost, content, audiences, trust Works when : Audiences overlap, offers complement ## Forms & parts of speech co-marketing · noun Joint brand promotion. "The webinar was classic **co-marketing** - their list plus ours, one piece of content, both pipelines fed." ## Definition in plain terms Co-marketing is a partnership in which two or more brands create and promote something together — a webinar, a report, a product bundle, a campaign — sharing the cost and the audiences. Each partner reaches the other's customers with an implicit endorsement attached, which is the real currency: borrowed trust. It differs from CO-BRANDING (a joint product identity) in being campaign-scoped, and from CHANNEL-PARTNER marketing in being between peers rather than along a sales chain. ## The mechanics The standard plays are joint content (the co-authored industry report, the two-logo webinar), joint promotions and giveaways, product bundles, event partnerships, and swap-style distribution (each brand mailing the other's offer to its list). What makes the economics attractive is symmetry — each side contributes audience and credibility it already owns, so reach roughly doubles while cost roughly halves. What makes campaigns succeed is fit on two axes: audience overlap (their customers should plausibly want you) and offer complementarity without competition (a CRM and an email platform, a running-shoe brand and a race series). The operational craft is unglamorous and decisive. Agree upfront — in writing — on goals, lead-sharing rules, brand usage, content approval, and who fronts which costs; define how leads are exchanged and consented (privacy law applies to swapped lists); and match effort levels, because the chronic failure mode is one partner treating the campaign as a priority while the other treats it as a favor. Measure both sides of the value: leads and revenue, but also the audience-quality question of whether the partner's list actually contained your buyers. ## When it matters Co-marketing matters most when your next customers already belong to someone else's audience and buying that reach cold would be expensive — the classic case is B2B SaaS ecosystems, where integration partners share a buyer but not a product. It suits brands with comparable audience sizes and credibility; mismatched partnerships tilt into sponsorship economics. The discipline is to pick partners by audience fit rather than logo prestige, paper the agreement before the creative starts, respect consent when leads change hands, and review afterward whether the borrowed audience converted — because one well-fitted partner running two campaigns a year reliably beats six mismatched one-offs. **Worked example.** A project-management SaaS and a time-tracking tool share an integration and, it turns out, a buyer — operations leads at agencies. They co-produce 'The Agency Utilization Report,' surveying both customer bases, and launch it with a two-logo webinar. Costs split evenly; each partner promotes to its own list; leads who opt in are shared under consent language written into the registration form. The SaaS sources 640 net-new leads from the partner's audience at roughly a third of its usual CPL, and closes its first deals within the quarter — buyers who already trusted the time-tracking tool extended that trust across the logo next to it. The sequel runs six months later. The fit did the work: same buyer, complementary products, matched effort, and consent handled before legal had to ask. **Failure modes to watch.** Partnering for logo prestige instead of audience fit; no written agreement on leads, costs, and approvals until the dispute; swapping lists without the consent privacy law requires; mismatched effort where one side treats the campaign as a favor; and counting shared leads as wins without checking whether the borrowed audience ever buys. ## Synonyms & antonyms ### Synonyms co-marketingpartner marketing campaignjoint marketing ### Antonyms solo campaigncompetitive marketing ## Origin & history Joint promotion is as old as retail — manufacturers and merchants have shared campaign costs since cooperative advertising arrangements formalized in the early 20th century. 'Co-marketing' as a named discipline grew with technology ecosystems in the 1990s and 2000s, where integration partners shared buyers, and matured into standard SaaS practice with dedicated partner-marketing teams. Etymology: [source](https://en.wikipedia.org/wiki/Co-marketing). ## Usage trends Search interest for this term over the last five years: [View interest-over-time on Google Trends →](https://trends.google.com/trends/explore?q=co-marketing&date=today%205-y) ## Common questions What is co-marketing? : A partnership where two or more brands create and promote a campaign together — sharing cost, content, and audiences, with each side reaching the other's customers carrying an implicit endorsement. How is co-marketing different from co-branding? : Co-branding fuses brands into a joint product identity; co-marketing is campaign-scoped — a webinar, report, or promotion run together while each brand stays itself. What makes a co-marketing partnership work? : Audience overlap with complementary, non-competing offers, comparable audience sizes, a written agreement on leads and costs, consent-compliant lead sharing, and matched effort from both sides. ## Related tools & calculators - tool[CAC calculator](/tools/cac-calculator/) - tool[LTV:CAC calculator](/tools/ltv-to-cac-ratio-calculator/) ## Resources & people to follow - reference[Wikipedia — Co-marketing](https://en.wikipedia.org/wiki/Co-marketing) - referencePartner-marketing practice literature (SaaS ecosystem playbooks) - referenceRGM analysis — pick partners by audience fit, paper the deal first, and audit whether borrowed audiences convert Curated, non-competitor resources verified per term. ## Related training - module[Performance marketing](/training/performance-marketing-foundations/) ## Disciplines Areas of marketing where co-marketing is a core concern: [Performance marketing](/training/performance-marketing-foundations/)[Growth strategy](/training/growth-marketing-foundations/) ## Read next ## Related terms [Co-branded content](/glossary/co-branded-content/)[Channel partner](/glossary/channel-partner/)[Affiliate marketing](/glossary/affiliate-marketing/)[Influencer marketing](/glossary/influencer-marketing/)[Audience overlap](/glossary/audience-overlap/) ## Sources 1. trends[Google Trends — "co-marketing"](https://trends.google.com/trends/explore?q=co-marketing&date=today%205-y)