Beyond equity splits: How to find co-founder chemistry

Finding the right co-founder is not just hard – it’s a tango, a chess game, and a baking challenge all rolled into one.

The chemistry between co-founders is delicate. Without it, even the most promising of teams can disband mid-journey, and potential game-changers can fizzle out into disappointing what-ifs.

Image credit: Timmy Loen

Having spent years helping founders find their right co-founders at Antler, I’ve developed an intuition for what makes a good match. I’ve seen duos whose synergy was so electric they made every hurdle look like child’s play.

I’ve also witnessed breakups where talented individuals, once filled with shared dreams and ambitions, parted ways. These experiences have shown me the importance of finding the right co-founder pairing.

When you meet a potential co-founder, you should have some questions at the ready apart from classics like “who will be the CEO” or “how do we split the equity.” These questions are designed to probe deeper and explore the human behind the hustle.

1. The airplane test

Could we survive a 14-hour flight together without one of us considering an emergency parachute jump?

This question tests compatibility. It’s crucial to ensure that you can endure extended periods together without feeling the need to take a break from one another.

2. The overlap

How do we spend our free time? What hobbies and interests do we share?

Successful co-founders often have overlapping interests outside of work, and these shared interests can lead to a stronger bond and better understanding. Co-founders who enjoy similar activities often have better synergy and communication.

3. Exit stage left

How do we recognize when it’s time to move on? What if we’re moderately successful, but our product no longer lights that fire within us?

This addresses the hard reality of burnout and loss of passion. It’s important to set criteria for when to push through, when to pivot, and when to call it quits.

4. Stress, pressure, and coping

How do you handle stress and pressure? Do you prefer to confront the issue head-on or take a step back and process?

Everyone reacts to stress differently. Understanding your co-founder’s coping mechanism can prevent misunderstandings during tough times.

5. The unavoidables

6. Life integration

7. Feedback

8. Personal motivation

9. Past experiences

10. Compatibility