Independent Software Vendor (ISV)
An Independent Software Vendor (ISV) is a company that builds and sells its own software products, rather than reselling or servicing software built by others.
An Independent Software Vendor is a company whose business is building and selling its own software. The word independent historically meant independent of the hardware makers and platform giants; today it mostly distinguishes companies that create software from companies that resell, implement, or service it.
By that definition nearly every B2B SaaS company is an ISV. The term matters anyway because large platforms, meaning cloud providers, CRM ecosystems, and app marketplaces, use ISV as the label for software makers in their partner programs, and ISV partnerships describe a specific set of growth motions.
How it works in B2B SaaS
In practice the ISV label activates when a software company plugs into someone else's ecosystem. The ISV joins a platform's partner program, builds an integration against the platform's API, lists in the platform's app marketplace, and sometimes sells through cloud marketplaces where enterprise buyers can purchase using committed cloud spend.
The flow works in both directions. An ISV also runs its own partner ecosystem: recruiting affiliates to drive traffic, agencies to implement, and other ISVs as technology partners whose integrations make both products stickier. In every case the ISV is the party that owns the product and the roadmap.
A worked example
Take Ledgerly, a fictional accounting SaaS with a $50 per month average plan. Its customers overlap heavily with users of a major e-commerce platform, so two engineers spend six weeks building a certified integration, and Ledgerly lists it in the platform's app marketplace.
In the first year the listing drives 300 installs. Sixty of those convert to paid plans, adding $36,000 in ARR at near-zero marginal acquisition cost. Just as important, existing customers who connect the integration churn measurably less, because ripping out connected software hurts more than canceling a standalone tool.
Ledgerly then joins the platform's co-sell program, so the platform's account managers can refer merchants who need accounting. One partnership, three compounding channels: marketplace demand, retention lift, and referrals.
The main ISV partnership motions
Five motions cover most ISV partnership activity:
- Technology partnerships: build integrations with products your customers already use.
- App marketplace listings: earn distribution inside another product's ecosystem.
- Cloud marketplace selling: transact through the big cloud providers to tap enterprise procurement budgets.
- Channel partnerships: recruit VARs, agencies, and system integrators to sell and implement your product.
- Affiliate or referral programs: pay individuals and companies for tracked introductions.
Most SaaS companies eventually run several of these at once, and the mix shifts as deal size grows.
ISV vs VAR
The distinction is ownership of the product. An ISV builds and owns the software and earns subscription or license revenue. A VAR resells software someone else built and earns margin plus services revenue. One creates intellectual property; the other distributes and extends it.
Confusion creeps in because a single company can be both: an agency that resells a CRM is a VAR, and if it also sells its own reporting add-on, it is an ISV for that product. Partner programs should classify the relationship per product, not per company, or the compensation model ends up wrong somewhere.
How it shows up in affiliate and partner programs
In the affiliate world, the ISV is almost always the program operator: it owns the product, the margin, and therefore the commission budget. When two ISVs partner with each other, the currency is usually not commission but mutual exposure: integration listings in each other's directories, co-marketing to shared audiences, and reciprocal referrals.
Mature ecosystems formalize this with technology partner tiers, ecosystem-qualified leads, and marketplace revenue sharing. For a small ISV, being a visibly good partner inside a large ecosystem is often the cheapest credible marketing available.
Common mistakes
The classic error is treating an ISV partner like a reseller and expecting them to sell your product. Most will not; their sales team sells their own product. What ISV partners realistically deliver is integration value, co-marketing reach, and warm referrals.
Other traps:
- Building integrations no customer asked for instead of following overlap data.
- Neglecting the marketplace listing itself, since screenshots, reviews, and keywords drive installs.
- Signing platform agreements without reading the revenue share and data terms.
Platform agreements are binding contracts, so get qualified eyes on them; this is not legal advice.
Frequently asked questions
Is every SaaS company an ISV?
Functionally yes: if you build and sell your own software, you are an ISV. The label is mostly used inside partner ecosystems, so you will encounter it when joining a cloud provider's program or an app marketplace rather than in everyday SaaS conversation.
What is the difference between an ISV and a technology partner?
ISV describes what a company is: a software maker. Technology partner describes a relationship: two companies whose products integrate. An ISV becomes a technology partner the moment it builds an integration with another vendor and both sides agree to support and promote it.
Do ISVs pay to sell through marketplaces?
Usually yes. App and cloud marketplaces typically charge a revenue share on transactions they process, though many have reduced their rates in recent years to attract listings. Weigh the fee against the procurement advantages: enterprise buyers can often spend pre-committed cloud budget in marketplaces, which shortens deals.
