Professional indemnity for scaling and VC-backed companies

Reviewed by Apex Insurance Brokers · Last reviewed 2026-08-06

What does professional indemnity actually cover for a growing company?

Professional indemnity responds when a client alleges that your professional work caused them a financial loss — a piece of software that failed to do what the contract promised, advice that turned out to be wrong, a missed deadline that cost them money, a design flaw, or an allegation that you were negligent in delivering your service. It typically funds your legal defence and any damages or settlement you become liable for, up to the limit you buy. For most technology, consultancy, agency, fintech and professional-services businesses, it is the single most contract-relevant cover you hold, because it is the one your customers read before they sign.

That last point is what makes PI so different from a static SME purchase. A cafe buys public liability and rarely thinks about it again. A scaling company signs a new enterprise contract and discovers that the customer's procurement team has an opinion about exactly how much PI you carry — and they will hold up the deal until you satisfy it. PI stops being a background compliance item and becomes part of your commercial machinery.

Why does my PI need to grow as the company scales?

The cover you bought when your biggest client paid you five figures a year is not built for the world where a single contract is worth several million. Three forces push your requirement up over time, and they tend to arrive together.

• Bigger contracts carry bigger exposure. The potential loss a client can suffer is loosely tethered to the value and criticality of what you deliver. When you move from serving small businesses to running mission-critical systems for large organisations, the size of a plausible claim moves with it.
• Enterprise customers mandate specific limits. Large buyers frequently write a minimum PI limit of indemnity into their supplier contracts. It is not unusual to be asked to evidence £1m, £5m or £10m of cover before a master services agreement is signed — and the required figure is theirs to set, not yours.
• Your service scope expands. The startup that once built one narrow product now handles data, integrates with third parties, offers professional services alongside software, and touches parts of a client's business it never used to. Each new capability widens the surface area for a claim.

Add investor expectations to the mix and the direction of travel is clear: cover that was proportionate at seed will usually look thin by Series A, and thinner again by the time you are signing enterprise logos.

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How do enterprise customers dictate my limit of indemnity?

When you sell to a large organisation, their procurement and legal teams run you through a supplier onboarding process, and insurance is a standard checklist item. Buried in the contract you will usually find an insurance schedule setting out the minimum limits you must hold and maintain for the life of the agreement — often including professional indemnity at a stated figure.

Founders are frequently caught out here in two ways. The first is the sheer size of the number: a customer may require a limit several times larger than anything you currently carry, and they will not soften it simply because you are a smaller supplier. The second is the wording. Contracts sometimes ask you to hold cover on terms that do not match how PI ordinarily works — for example, to maintain a limit "per claim" rather than "in the aggregate", or to keep the cover in force for a number of years after the contract ends. These distinctions genuinely matter, and it is worth having your broker read the insurance clause before you agree to it, because committing to something your policy cannot deliver is a problem you want to find at draft stage, not at renewal.

The practical takeaway: your limit of indemnity is increasingly set by your customers, not chosen in isolation. A good broker helps you anticipate what your target customers will demand, so you are not scrambling to upgrade cover in the final week of a deal.

What limit of indemnity should a scaling company carry?

There is no single right answer, and anyone who quotes you one without understanding your contracts is guessing. The limit you need is driven by a handful of factors working together: the value and criticality of your largest contracts, the specific limits your customers require in writing, the nature of the loss a client could suffer if your work went wrong, your sector, and how far your service scope has widened. Investor and board expectations play a part too, particularly once you are past Series A.

As illustrative options only, scaling companies commonly consider limits such as £1m, £5m or £10m — but treat those as reference points on a spectrum, not a recommendation for your business. The right figure for you falls out of your actual contracts and risk profile, which is exactly the conversation to have with a specialist rather than a comparison form.

It is also worth understanding how the limit is structured. An "aggregate" limit is the most the policy will pay across all claims in a policy year; a "per claim" or "each and every claim" basis resets the limit for each separate claim. Because customer contracts sometimes specify one or the other, the structure — not just the headline number — is part of getting it right. Speak to an Apex specialist and we'll work back from the contracts you're actually signing.

How does PI fit into the funding journey?

The most useful way to think about professional indemnity is as something you revisit at each stage, rather than a one-time purchase. Your cover should move roughly in step with your revenue, your customer base and your service scope.

• Pre-seed and seed. If you are already delivering a professional service or software to paying clients, PI is usually relevant from your first real contracts. Early customers may not demand much, but the exposure exists the moment your work can cause someone a loss.
• Series A. Contracts get larger and more sophisticated, enterprise procurement enters the picture, and required limits climb. This is often the point at which founders first realise their existing cover is undersized.
• Series B and beyond. You are signing major customers with detailed insurance schedules, expanding into new services and sometimes new territories, and your board expects your risk transfer to be robust. Limits typically step up again, and the wording needs to keep pace with how the business now operates.

Because the requirement moves round over round, the sensible rhythm is to review PI at each renewal and whenever you close a round, sign a materially larger customer, or launch a new line of service. Waiting until a customer forces the issue means negotiating cover under deadline pressure — rarely the position you want to be in.

What else should scale up on the same timeline?

PI rarely travels alone. As you scale, several other covers tend to become relevant or mandatory at roughly the same milestones, and it helps to see them as a set.

Employers' liability becomes a legal requirement as soon as you employ staff. Under the Employers' Liability (Compulsory Insurance) Act 1969, most employers must hold this cover, with only narrow exceptions, and failing to do so can lead to penalties — so it is one to have in place the moment you start hiring rather than something to defer.

Directors' and officers' (D&O) cover protects your directors personally against claims arising from how they run the company. It is not a legal requirement, but it is very commonly required by investors, and a term sheet will often make it a condition of the round — frequently from Series A onwards. If you're raising, it's worth reading our guide to directors' and officers' insurance before the term sheet lands.

Cyber cover is increasingly expected once you hold customer data or run software your clients depend on, and enterprise buyers may ask about it alongside PI. For the wider picture of how cover layers up as you grow, see our stage-by-stage startup insurance guide and our overview of insurance requirements in VC term sheets.

What drives the cost of professional indemnity?

We won't quote a price here, because a meaningful figure only comes from understanding your business — but it helps to know what moves it. Insurers weigh the limit of indemnity you need, the sector you operate in and how risky your work is judged to be, your revenue and the size and type of your contracts, the scope of services you provide, your claims history, and the specific wordings and extensions you require to satisfy customer contracts. Broadly, the larger the limit and the wider and more critical your service, the more there is to underwrite.

The point worth internalising is that raising your limit for a new enterprise deal has knock-on effects, and the wording your customers demand can be as significant as the number. Working through those factors with a broker who knows the scale-up journey means you buy cover that both satisfies the contract in front of you and stands up as you grow — without paying for structure you don't need.

When should I bring in a broker?

Earlier than most founders think. The best moment to talk to a specialist is before you sign the contract that forces a change — when you can see an enterprise deal or a funding round on the horizon and want your cover ready to meet it. A broker who works with venture-backed companies will read your customers' insurance clauses, tell you whether your policy can actually deliver what's being asked, and line up limits and wording that scale with you rather than needing to be torn up every twelve months.

Because PI, D&O, employers' liability and cyber tend to move on the same milestones, handling them together — with someone who understands where your business is heading — saves you from stitching cover together deal by deal.

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.