The Co-Founder Conflict Crisis

Co-founder conflict startup failure is one of the most underdiscussed topics in the Nigerian tech space. Everyone wants to talk about funding, product-market fit, and bad timing. But the story that keeps repeating itself quietly, the one that rarely makes the headline but always makes the graveyard, is two founders who started as partners and ended as enemies, taking a perfectly good business down with them.

Research from Harvard Business School, as cited by PlanetWeb Solutions, found that co-founder disputes are responsible for up to 65% of startup failures globally. In Nigeria, where handshake agreements are standard, documentation is rare, and relationships often replace legal structures,  that number is almost certainly higher. We just don’t say it out loud.

The goal of this is to know what needs to be put in place when building a startup with another person. But before then, let’s look at the Thepeer story, a fintech startup that died because of co-founder conflict.

The Co-founder Conflict: The Thepeer Story

Thepeer was a Nigerian fintech startup that raised $2.3 million to solve wallet fragmentation, a very real problem in Nigeria’s fintech ecosystem. The product made sense. The market was there. The funding was secured.

But a year after the 2024 shutdown, co-founder Sultan Akintunde went public with allegations of fraud and missing funds. He alleged co-founders had rushed to shut the company down to avoid investigation, with approximately $700,000 in investor funds remaining unaccounted for.

That’s not a market failure. That’s a people failure. And it’s the kind that leaves investors burned, teams unemployed, and a potentially good product dead in the ground.

Thepeer is just one example. The same story has played out across the continent with different names, different sectors, same internal collapse.

Co-founder Conflict: What Founders Should Do

1. Have the hard conversation before you start not after you scale

Most co-founder relationships blow up not because of hatred but because of assumptions. Everyone assumed they agreed on the vision, the roles, the exit plan, the pace of growth. Nobody want to have the uncomfortable conversations early like what happens if one person wants to exit? What if growth is slower than expected? What if you deeply disagree on strategy? Silence now becomes a lawsuit later when it could have been avoided from the beginning.

2. Document everything.

In Nigeria, the culture of “we know each other, we’re good” has ended more businesses than bad markets ever did. A co-founder agreement is not a sign of distrust; it’s the foundation of trust. It should clearly cover equity split, roles, responsibilities, rewards, decision-making authority, vesting schedules, and what happens in a dispute. If either party resists putting it in writing, that resistance itself is a red flag worth examining.

3. Complementary skills beat friendship every time

Picking a co-founder because they’re your roommate, your cousin, or your longtime friend is one of the most common and most expensive mistakes in the Nigerian startup space. You need someone whose skills cover what yours don’t. A builder needs a seller. A visionary needs an operator. Two people who are brilliant at the same thing and terrible at everything else is not a founding team, it’s a gap with a shared name.

4. Align on values, not just vision

Vision can change. A pivot can shift your entire direction in six months. But values like how you treat people, how you handle pressure, how honest you are when things go wrong, how you make decisions when stakes are high, those stay consistent. Two founders with different values will agree on the idea at the start and war over everything else as the company grows. You can survive a strategic disagreement. You cannot survive a values mismatch.

5. Build a governance structure from day one

Thepeer is the perfect proof of why this matters. When co-founder Sultan Akintunde raised concerns and requested an audit in March 2024, the allegation was that the other co-founders rushed to shut the company down rather than face investigation, leaving approximately $700,000 unaccounted for. A functional board, a formal dispute resolution process, and documented financial oversight could have either prevented that situation entirely or at least given stakeholders a legitimate structure to intervene. Instead, there was nothing to catch the fall. That’s what happens when governance is treated as something you set up “later, when things get serious.” Things are already serious from day one. Set up an advisory board, a clear decision-making framework, and a formal process for resolving disagreements before they become irreversible and before someone’s walking away with money that isn’t theirs.

The Bottom Line

Co-founder conflict is not a thing and your co-founder is not just a business partner. They are either your greatest asset or your greatest liability and you won’t know which until pressure reveals it.

The market will be hard. Investors will be tough. Regulation will be unpredictable.

Don’t hand the business a fifth problem by getting the co-founder decision wrong.

Choose carefully. Document everything. And build the kind of internal structure that can survive a disagreement without taking the whole company down with it.