Imagine this:
Two friends are sitting in a noisy co-working space in Berlin. They've just closed a seed round, the champagne cork is still somewhere in the corner, and they're planning their next move. One founder is buzzing with ten new product ideas before lunch. The other is already thinking through the company handbook for when they hit 50 employees.
They don't know it yet, but their difference — not their similarity — might be the reason they survive the brutal startup mortality rate.
That's not just founder folklore. A massive 2023 study of 21,187 startups across the globe says the mix of personalities on your founding team can seriously shift your odds of success.
What This Study Actually Did
The researchers weren't just poking around LinkedIn bios. They tapped into:
- Crunchbase — the world's biggest startup directory.
- Twitter/X — because, let's face it, founders can't resist tweeting hot takes.
Then they used natural language processing to map each founder's Big Five personality traits (Openness, Conscientiousness, Extraversion, Agreeableness, Emotional Stability) and compared that to whether their startups hit one of three milestones:
💰 Acquisition | 🛒 Acquiring another company | 📈 IPO
These are real, bankable signs of success — not just a big Series A raise that vanishes six months later.
The Founder Personality Plot Twist
Turns out, successful founders look pretty different from the average employee. Three traits stood out:
- Adventurousness – You like novelty, variety, and jumping into the unknown. (Also known as "the Tuesday morning pivot.")
- Lower Modesty – You're fine being in the spotlight. Let's be honest: pitch decks and press calls reward the loud.
- High Activity Level – You move fast. Like, really fast.
This isn't "fake hustle" energy — it's sustained momentum over years.
The FOALED Cast of Characters
When the data dust settled, founders fell into six clusters. Meet the FOALED crew:
| Type | Who They Are | Strengths | Weak Spots |
|---|---|---|---|
| Fighter | Tough, spontaneous, a little uncompromising | Push through obstacles, great under fire | Can burn bridges |
| Operator | Orderly, humble, detail-oriented | Keep the trains running | Risk-averse |
| Accomplisher | Extroverted, conscientious, confident | Can lead and deliver | Might overcommit |
| Leader | Adventurous, assertive, big-picture thinker | Inspire teams & investors | Impatient with details |
| Engineer | Imaginative, analytical, curious | Solve hard problems | Can get stuck in the weeds |
| Developer | Balanced, adaptable, sociable | Bridge gaps between people & tech | Can lack sharp edges in crises |
It's not about "being the best" type. It's about having the right mix in your founding squad.
Why Teams Beat Lone Wolves
The study's Ensemble Theory says:
The combination of personalities in the founding team matters even more than any single superstar founder.
Numbers don't lie:
- 3+ founders → twice as likely to succeed compared to solo founders.
- Certain trios were 2x more successful than random combinations. For example:
- Leader + 2 Developers
- Operator + 2 Developers
- Engineer + Leader + Developer
Why? Because different brains solve different problems. The visionary spots the opportunity, the builder turns it into a product, and the operator makes sure the company doesn't forget to invoice customers.
A Quick Story: BioNTech's FOALED Moment
Back in 2008, two Turkish immigrant scientists in Mainz, Germany teamed up with a university colleague. Their personalities? High on adventurousness, curiosity, and persistence.
They founded BioNTech, played the long game in mRNA tech, and when COVID-19 hit, they partnered with Pfizer to deliver a vaccine that saved an estimated six million lives. The city of Mainz went from financial trouble to paying off €1.3B in debt — and attracting a wave of new startups.
This wasn't just luck. It was the right people, with the right traits, working in the right mix.
What This Means for You
If you're a founder:
- Identify your own FOALED type. Are you the fighter in the trenches? The engineer architecting solutions?
- Recruit complements, not clones. If everyone's a visionary, no one's fixing bugs.
- Remember: conflict can be productive if it's rooted in different perspectives.
If you're an investor:
- Don't just ask "Do I believe in this founder?" Ask "Do I believe in how these founders fit together?"
- Look for teams that can pivot without imploding.
- Use personality diversity as a risk-mitigation filter — it's another signal in your due diligence.
TL;DR — The FOALED Truth
- There's no single "perfect founder" — there are six main types.
- Personality diversity in the founding team increases survival odds.
- The best teams are ensembles, not solo acts.
- Funding the right mix can be as important as funding the right market.
Citation: McCarthy, P. X., Gong, X., Braesemann, F., Stephany, F., Rizoiu, M.-A., & Kern, M. L. (2023). The impact of founder personalities on startup success. Scientific Reports, 13, 17200. https://doi.org/10.1038/s41598-023-41980-y