EvoScale Capital
Insights · For Investors

Due Diligence: What to Check Before You Wire

By EvoScale Capital · 7 min read · June 2026

By the time an investor reaches due diligence, the big decision is largely made: the team, market, traction and numbers have all been judged, and the answer is leaning yes. Diligence is not where you decide again from scratch. It is where you verify what you already believe and go looking, deliberately, for the one thing that should stop the deal. Done well, it is fast and surgical. Done as an anxious re-litigation of everything, it wastes weeks and still misses the landmine that matters.

the one to chase
Most items confirm what you expect. Diligence earns its keep on the single line that does not tick.

Four areas, sized to the stage

Diligence splits cleanly into four areas. Commercial diligence checks that the demand and traction are real. Financial diligence checks that the numbers and ownership are what they appear to be. Legal diligence checks that the company actually owns what it is selling and carries no hidden liabilities. And deal diligence checks that the documents match what was agreed. The depth you go to in each should match the stage: a seed cheque does not warrant the forensic process of a growth round, and an investor who buries an early founder in a hundred requests signals inexperience, not rigour. The art is to be light where the risk is small and relentless where it is not.

The pre-wire checklist
What to verify in each area, and the deal-killer that most often hides there. You are confirming a yes, and hunting the one no.
Commercial
  • Call references, on the list and off it
  • Talk to real, paying customers
  • Confirm retention and pipeline
Deal-killer: a key customer who contradicts the story or is quietly about to leave.
Financial
  • Rebuild the key numbers yourself
  • Check the bank balance and runway
  • Confirm the cap table is clean
Deal-killer: undisclosed debt, or a headline number that falls apart on inspection.
Legal
  • Confirm the company owns its IP
  • Check corporate records are clean
  • Look for pending litigation
Deal-killer: a founder or contractor who never assigned their IP to the company.
The deal
  • Documents match the term sheet
  • No surprise side letters
  • Your rights are in writing
Deal-killer: terms that quietly drifted from what was agreed, or a right that vanished.
EvoScale checklist; scope per standard early-stage venture diligence

The two checks that earn their keep

If diligence had to shrink to two actions, they would both be phone calls. The first is to customers, the people actually paying for the product, because they will tell you in a few minutes whether the traction is real in a way no data room can. The second is a backchannel reference on the founders, someone who worked with them but is not on the prepared list, because the people a founder does not offer are often the ones with the most useful, unvarnished read. Almost every deal that blows up after the money goes in had a warning available in one of these two conversations that the investor was too busy, or too eager, to have.

Legal diligence deserves one specific mention, because it is the area new investors most often wave through and the one with the cleanest catastrophic failure: intellectual-property ownership. If a founder, an early engineer or an outside contractor built core technology and never formally assigned it to the company, the company may not own the very thing it is selling, and that can unravel an entire business. It is a simple thing to confirm and a fatal thing to assume, which is exactly the kind of item diligence exists to catch.

The takeaway

Due diligence is verification, not a second guess. Come into it leaning yes, work the four areas in proportion to the stage, and spend your energy hunting the single deal-killer rather than re-deciding the whole investment. Make the two phone calls, to customers and to an off-list reference, and never wave through IP ownership. The point is not to eliminate risk, which is impossible at this stage, but to make sure the risks you are taking are the ones you chose and understand, not a landmine you could have found with one more conversation. An investor who does diligence this way moves fast, keeps the goodwill of good founders, and still catches the thing that would have cost them everything.

It is how EvoScale Capital runs diligence on every B2B deal, surgical, stage-appropriate, and built around the customer and reference calls operators are unusually well placed to make. With the deal verified, only one thing stands between an investor and a good decision, and it is not in the data room. It is in their own head, which is where the series ends.

Running diligence on a deal?

EvoScale Capital is a B2B investing syndicate where you can run diligence alongside people who can make the customer and reference calls that matter most. If you want to sharpen that process, we'd be glad to talk.

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