Why Reference Calls Matter
Reference calls reveal what no pitch deck or data room can: character, leadership style, and blind spots. GitDealFlow's engineering data tells you what the team ships; reference calls tell you how they ship it.
A founder's former colleagues, managers, and reports will tell you more in 30 minutes than hours of product demos.
Who to Call
3-5 references minimum: a former manager, a former peer, a former direct report, a current employee, and a customer (if the startup has revenue).
Also call 1-2 references the founder didn't suggest — this catches blind spots the founder's network won't surface.
What to Ask
Would you work with this founder again? (Watch for hesitation.)
What are their blind spots? (The honest answer tells you more than any strength.)
How do they handle bad news? (Founders who hide problems are dangerous.)
Why did they leave their last company? (Alignment? Ambition? Frustration?)
What's the hardest challenge they've overcome? (Resilience is the #1 founder trait.)
Frequently Asked Questions
How many references is enough?
3-5 for pre-seed/seed, 5-10 for Series A+. Include at least one reference the founder didn't suggest.
What's a red flag in references?
Vagueness ('they were fine'), excessive praise lacking specifics, or references who won't return your call.
Should I check references before or after meeting the founder?
After. Meet the founder first to form your own opinion, then validate with references.