Key person insurance for founders and startups

Reviewed by Matthew Bartlett, Director, Apex Insurance Brokers Limited · Last reviewed 2026-08-06

What is key person insurance, in plain terms?

Most founders insure the obvious things: the office, the laptops, professional liability, the team. What often goes uninsured is the one asset a young company genuinely cannot replace overnight — the person whose relationships, technical knowledge or reputation the whole thing is built around.

Key person insurance (you will also see it written as “key man insurance,” the older term) closes that gap. It is a business-owned life insurance policy — frequently written to also pay out on a serious critical illness diagnosis — taken out on a named individual whose loss would materially damage the company’s finances. The crucial structural point, and the thing that makes it different from personal life cover, is who owns it and who benefits.

• The company is the policyholder. The business applies for the cover, not the individual.
• The company pays the premiums out of company funds.
• The company is the beneficiary. If a claim is paid, the money goes to the business to spend on staying afloat — not to the individual’s family or estate.

That last point is what people most often get wrong. This is not a benefit for the founder personally. It is a financial airbag for the company, funded by the company, to absorb the commercial damage of losing someone irreplaceable. Personal life cover that looks after a founder’s own family is a separate arrangement entirely.

Who actually counts as a “key person”?

The honest test is uncomfortable but simple: if this person disappeared tomorrow, would revenue fall, would a product stall, would customers or investors lose confidence, or would the company struggle to raise or service debt? If the answer is yes, that person is probably a key person.

In a venture-backed startup, the most common key people are:

• A founder or co-founder — especially a sole technical founder, or the founder who carries the investor relationships and the fundraising narrative.
• A lead engineer or CTO who holds critical architecture knowledge that is not yet fully documented or shared across the team.
• A commercial lead whose personal relationships underpin a large share of the pipeline or a handful of anchor customers.

Early on, that’s often just the founders themselves, because in a five-person company almost everything routes through them. As you scale, the concentration of risk usually shifts — and the sensible move is to revisit who your key people are at each funding stage rather than setting cover once and forgetting it.

Why do investors sometimes ask for it on a founder?

This is the reason the topic lands on most founders’ desks. During a funding round, an investor is writing a cheque largely on the strength of the team — and at seed and Series A, “the team” can mean one or two people. A significant part of the value they’re backing walks out of the building every evening.

Key person cover on a founder gives an investor some reassurance that if the worst happens, the company has a cash cushion to steady itself, buy time and recruit, rather than folding and taking their investment with it. So you may see it appear as a request in a term sheet or in the conditions attached to a round — sometimes framed as a requirement to put cover in place on named founders before, or shortly after, completion.

A few things worth being clear-eyed about here. Term sheet clauses vary enormously in wording and in how firmly they’re enforced, so treat any specific requirement as something to read carefully with your lawyer rather than assume. And investor-driven key person cover is a commercial and contractual expectation from a backer — it is not a legal or statutory requirement the way some other business insurances are. If a round is on the horizon and cover has been mentioned, it’s worth getting the policy structured early so it doesn’t become a last-minute condition holding up completion.

Larger or more complex risk? Speak directly to a director — call 0117 325 0027 or email info@apexinsurancebrokers.co.uk.

How does it protect the company if the worst happens?

Imagine the sole technical founder of an early-stage company is suddenly out of action — through a serious illness or, in the hardest cases, death. In the weeks that follow, the business faces several problems at once: product development stalls, customers and investors get nervous, and the company needs to find and pay for a senior replacement while revenue may be softening. Cash is under pressure at exactly the moment the company can least afford it.

A key person payout is a lump sum the business can direct at whichever of those pressures is most urgent. In practice, companies use it to:

• Replace lost profits or revenue while the business stabilises.
• Fund recruitment and the cost of hiring a senior replacement — often at a premium and on a tight timeline.
• Cover ongoing overheads and keep the team paid while the company regroups.
• Repay or service business borrowing that may have been personally connected to the individual.
• Buy breathing room to have measured conversations with investors, lenders and major customers rather than panicked ones.

Whether cover extends to critical illness as well as death is an important design choice. Serious illness is statistically more likely than death during the working years, and a critical illness element means the policy can respond while the key person is alive but unable to work — often exactly when the company’s cash need is most acute. It’s worth deciding deliberately rather than defaulting to life-only cover.

How much cover does a startup need?

There’s no single right number, and anyone quoting you one without asking questions is guessing. The sum insured should reflect the actual financial hit the business would take, which is a genuinely company-specific calculation. Founders and their advisers typically look at factors such as:

• The revenue or gross profit tied to that person — a share of profits, or a multiple of their contribution, over the time it would realistically take to recover.
• The cost and time to replace them — recruitment, a market-rate salary for a senior hire, and the ramp-up before they’re fully effective.
• Any business borrowing connected to the individual, which lenders may expect to be covered.
• Specific investor or term-sheet requirements, where a round sets an expected level of cover on named founders.

The point is that the amount is driven by your numbers, not by a rule of thumb. This is one of the clearest cases where a short conversation beats a self-serve estimate — speak to an Apex specialist and we’ll help you size cover to the real exposure rather than a round number.

What drives the cost of key person insurance?

We won’t quote prices here — they depend entirely on the individual and the cover — but it helps to understand the levers so nothing comes as a surprise. Premiums are shaped by things like the key person’s age and health, whether they smoke, the amount of cover, the length of the policy term, and whether you include critical illness as well as life cover. Larger sums insured or older applicants naturally cost more, and medical underwriting for higher amounts can mean health questions or a medical before cover is confirmed.

Because the individual’s health is central to pricing and to getting cover accepted, there’s a real advantage to arranging it while founders are young and healthy and early in the company’s life. It tends to be more straightforward and better value then than scrambling for it mid-round.

How does it fit with the rest of a startup’s cover?

Key person insurance protects the company against losing a person. It sits alongside — and doesn’t replace — the other policies a scaling company builds up. It’s worth being clear on where the lines fall:

• Employers’ Liability insurance is a legal requirement once you employ staff, under the Employers’ Liability (Compulsory Insurance) Act 1969, with only narrow exceptions. That’s a statutory duty and a genuinely different thing from key person cover.
• Directors’ & Officers’ (D&O) insurance protects directors personally against claims relating to how they run the company. It is not legally required, but it’s commonly asked for by investors and often appears as a term-sheet condition, frequently from Series A onwards. You can read more in our guide to directors’ and officers’ insurance explained.
• Professional indemnity, cyber and public liability cover the things you do and the risks you create, rather than the people you depend on.

Key person cover is the piece that specifically answers “what happens to the business if we lose a founder or a critical hire?” For a fuller picture of how these fit together as you grow, our startup insurance guide walks through what to prioritise at each stage.

When is it worth putting in place?

There are a few natural trigger points. The most common is a funding round where an investor asks for it. But plenty of founders arrange it independently — because they’ve recognised that the company is dangerously dependent on one or two people, because they’ve taken on business borrowing, or simply because they’ve grown to the point where the failure of the business would let down a team, customers and backers who are all relying on them.

A good moment to consider it is any time the honest answer to “could this business survive the sudden loss of this person, financially, for the months it would take to recover?” is no. If you can’t comfortably say yes, it’s worth a conversation. There are also tax and policy-structuring considerations around how premiums and payouts are treated, which is exactly the sort of thing to check with your accountant and broker rather than assume — getting the setup right matters as much as the cover itself.

The founder’s takeaway

Key person insurance is one of the more quietly sensible things a founder can do for the company they’ve built. It recognises an uncomfortable truth — that in a young business, people are the most valuable and least replaceable asset — and turns that risk into something the company can survive. Whether an investor has asked for it or you’ve simply realised how exposed you are, the right time to think about it is before you need it, while the founders are healthy and the setup is simple. Get the structure and the sum insured right, and it becomes one less thing standing between your company and the next stage.

Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority (FRN 724952). This article is general information, not advice on a specific policy or a recommendation to buy any product.