The Partner Ecosystem Due Diligence Checklist Every VC Should Use
Investors diligence revenue, team, product and market in depth. The partner ecosystem usually gets one question, if any. Here's a checklist to close that gap, before the term sheet and after it.
Telma Rafael
11/10/20264 min read
Diligence has a blind spot
When a VC looks at a Series A to C company, the data room covers revenue quality, churn, unit economics, the cap table and the tech stack. Partnerships tend to appear as a slide of logos.
That slide tells you very little. A logo can mean a co-selling relationship that drives a third of pipeline. It can also mean a signed agreement that nobody has touched since the press release.
The difference matters. Partners shape how efficiently a company grows, how defensible it is and, as we covered in Your Partners Might Be Your Buyers, who might eventually acquire it.
Why the ecosystem belongs in diligence?
A healthy partner ecosystem affects three things investors care about.
Capital efficiency. Partner-sourced deals can lower acquisition cost and shorten sales cycles, because a trusted partner has already done part of the selling.
Defensibility. A product embedded in a partner's platform, marketplace or delivery methodology is much harder for competitors to displace.
Exit options. Strategic acquirers often come from the partner base. A well-run alliance is an early, low-cost relationship with a potential buyer.
A weak ecosystem carries risk too. Over-reliance on one partner, relationships held only by the founder, or partner revenue that nobody can verify can all surface later as problems.
The questions below help you tell the difference. They are grouped into five areas.
1. Strategy and fit
Start with whether partnerships are a deliberate part of the go-to-market or a collection of opportunistic deals.
Can the founders explain which partner types matter most to them (hyperscalers, global system integrators, ISVs, resellers) and why?
Do the top partners share the company's target customers, or just its industry?
Is there a written partner strategy that ties back to the overall growth plan?
How many active partners are there, and how many would the company actually miss?
What good looks like: a short list of focused partners with clear strategic fit. A long list of logos with no clear priorities is a warning sign. We made the same case in Stop Collecting Partners, Start Building an Ecosystem.
2. Revenue and pipeline evidence
This is where claims about partnerships meet the numbers. Ask to see data, not estimates.
What share of closed revenue was partner-sourced, and what share was partner-influenced?
Are those two categories defined clearly and tracked in the CRM from the start of each deal?
How do win rates, deal sizes and sales cycles compare between partner deals and direct deals?
Is partner-sourced pipeline growing as a share of total pipeline, quarter on quarter?
Is there any marketplace revenue (for example through a cloud marketplace), and how is it trending?
What good looks like: clean CRM data that separates sourced from influenced, with at least a few quarters of history. Figures assembled for the data room after the fact deserve a closer look.
3. Depth and defensibility
Some partnerships are a referral arrangement. Others make the company part of how a partner delivers value to its own customers. The second kind is far harder to replace.
Is the product technically integrated with any partner platforms? Are those integrations certified and maintained?
Is the company part of a partner's offering, delivery methodology or reference architecture?
Are there joint customers who use both products together, and will they act as references?
Has any partner invested time, budget or people in the relationship (co-marketing funds, dedicated partner managers, trained consultants)?
What good looks like: at least one or two partnerships where both sides have invested and the customer experiences a joint solution. Investment from the partner's side is one of the most reliable signals of real commitment.
4. Ownership and programme maturity
In many startups, partnerships live in the founder's head. That works early on. It becomes a risk as the company scales, and it limits how much the channel can grow.
Who owns partnerships today, and does that person have the time and authority to do it well?
Does every strategic partner have a named owner and a documented relationship plan?
Are there repeatable sales plays, enablement materials and incentives for partner sellers?
Are there regular business reviews with key partners, with agreed goals?
If the founder stepped back tomorrow, which partner relationships would survive?
What good looks like: a programme that runs without depending on one person. That doesn't always mean a full-time hire. At this stage, a fractional partnerships lead can often build the foundations faster and at lower cost.
5. Partner health and concentration risk
A strong partner can become a dependency. Check how balanced the ecosystem is and how the relationships feel from the other side.
What share of partner revenue comes from the single largest partner?
Could a key partner build or buy a competing product? Is there any sign they are already doing so?
Are partner agreements in good standing, with clear terms on exclusivity, change of control and termination?
Would the company's key partner contacts speak positively about the relationship if you called them?
What good looks like: no single partner that could sink the business by walking away, and contracts that won't create surprises in a later funding round or sale. A short reference call with one or two partners is one of the quickest ways to test what you've been told.
Red flags and green flags at a glance
After the term sheet: use it across your portfolio
The checklist is just as useful after you've invested. Gaps found in diligence are often the quickest wins for value creation. The same questions apply for private equity operating partners building a value-creation plan or preparing a portfolio company for exit.
Benchmark the portfolio. Run the same five areas across your companies to see which ones are under-using partners.
Set partner metrics for the board. Ask for partner-sourced and partner-influenced pipeline in every board pack, so progress is visible.
Share introductions. Many portfolio companies could benefit from the same hyperscalers, system integrators or platforms. A coordinated approach carries more weight than each company knocking on the door alone.
Bring in experience early. A short ecosystem audit or a fractional partnerships lead can put the foundations in place before a hire is justified.
Every improvement here also strengthens the company's position at its next round or exit.
Look past the logo slide
Partnerships rarely get the same scrutiny as revenue or product. Yet they shape how efficiently a company grows, how hard it is to displace and who might one day buy it.
A few focused questions are enough to tell a real ecosystem from a slide of logos. So, next time a founder shows you their partners, ask what is behind them.
If you'd like an independent view of a target's or a portfolio company's partner ecosystem, our partner ecosystem audit is built for exactly that. Let's talk.