A major customer can be a startup’s best news and later its greatest vulnerability. The exposure extends beyond revenue share: one account may absorb the team, shape the roadmap and determine working priorities.
Measure three dependencies
Review the account’s share of revenue, delivery effort and confirmed future work. Its revenue contribution may look reasonable while a specialist capability or the company’s learning depends almost entirely on it.
Imagine a principal contract expanding while the business stops developing other sales channels. A delayed renewal then reveals the absence of mature alternatives. A strong customer relationship does not remove the need to build a wider market.
Diversify coherently
Pursue customers served by similar capabilities rather than any unrelated revenue. Turn learning from the large account into a repeatable offer while respecting confidentiality and rights.
Test a lower-demand or delayed-project scenario. Which commitments remain, and which resources can be redeployed? The aim is not to fear large contracts. It is to prevent one contract from replacing company strategy. A healthy commercial relationship strengthens capabilities and negotiating options rather than making every decision dependent on one external party.
