Alex is Sprintlaw’s co-founder and principal lawyer. Alex previously worked at a top-tier firm as a lawyer specialising in technology and media contracts, and founded a digital agency which he sold in 2015.
When you’re building a startup or scaling an SME, it’s normal to focus on the exciting stuff first: product, customers, hiring, and growth.
But when investment, acquisitions, or even a strategic partnership enters the picture, one clause can suddenly become a deal-maker (or deal-breaker): a change in control clause.
Change in control clauses are the kind of contract terms that can sit quietly in your agreements for years - and then cause real disruption right when you’re trying to close funding, sell the business, or restructure your group.
In this guide, we’ll break down what change in control clauses are, where they show up, why they matter for UK businesses, and what you can do to keep control of the outcome (even if your ownership changes).
What Is A Change In Control Clause (And Why Does It Exist)?
A change in control clause is a contract term that gives one party certain rights (or imposes certain consequences) if the other party experiences a “change in control” (as defined in the agreement).
From a legal and commercial perspective, it exists for a simple reason: people care who they’re doing business with. If you signed a contract with a founder-led SME, and that business is later bought by a competitor, a private equity fund, or a much larger group, the risk profile and the relationship can change overnight.
So a change in control clause typically allows the other party to protect themselves, for example by:
- terminating the agreement;
- renegotiating key terms;
- requiring consent before the change happens;
- triggering a payment or accelerated amounts owed;
- tightening restrictions (like confidentiality, IP use, or exclusivity).
It’s worth saying upfront: a change in control clause isn’t “good” or “bad”. It’s a risk allocation tool. The problem for many startups is that it’s often agreed early, when everyone’s optimistic - without thinking through what happens when the business becomes valuable.
Change In Control vs Assignment (They’re Related, But Not The Same)
A common confusion is between:
- Assignment clauses (whether a party can transfer the contract to someone else), and
- Change in control clauses (whether a party’s ownership changes, even if the contracting entity stays the same).
For example, if your company is acquired, your customer contract might still be “with the same company” (same name, same registered entity) - but the person who ultimately controls it has changed.
This is exactly why change in control clauses are so common in B2B agreements.
Why Change In Control Matters For UK Startups And SMEs
If you’re aiming for growth, a future exit, or simply want the flexibility to raise money, change in control clauses can affect you in ways that aren’t always obvious.
1. They Can Create A Hidden “Veto” Over Your Exit Or Fundraise
If key supplier, customer, or finance agreements say the other party can terminate (or must consent) upon a change in control, then your future buyer or investor may see this as a major risk.
In practical terms, it can mean:
- a buyer insists on getting third-party consents before completion (slowing the deal);
- an investor discounts your valuation because revenue is “not secure” post-transaction;
- your biggest customer has leverage to renegotiate price at the worst possible time.
2. They Can Trigger Multiple Problems At Once
Change in control issues rarely come alone. A single acquisition can trigger a chain reaction across:
- commercial contracts (customers, suppliers, distributors);
- leases and property arrangements;
- loan facilities and security;
- software or IP licences;
- employment arrangements and incentive plans.
This is why founders often feel blindsided - the clause is one line in a contract, but the business impact can be huge.
3. They Interact With Wider Legal Duties (Not Just “Contract Stuff”)
Even though change in control is primarily contractual, real-world transactions can also touch on other UK legal obligations.
Depending on the deal structure, you may need to think about:
- Directors’ duties under the Companies Act 2006 (for example, acting in the company’s best interests and managing conflicts appropriately);
- Data protection if personal data is shared as part of due diligence or post-acquisition integration (UK GDPR and the Data Protection Act 2018);
- TUPE (Transfer of Undertakings (Protection of Employment) Regulations 2006) where relevant - for example, some asset sales or outsourcing/insourcing arrangements can trigger an automatic transfer of employees, depending on the facts.
These aren’t reasons to avoid growth - they’re reasons to get your legal foundations right early, so your business can scale without surprises.
Where You’ll Commonly See Change In Control Clauses
Change in control clauses can appear in almost any business-to-business contract, but they’re particularly common where there’s ongoing reliance, sensitive data, or long-term commitments.
Shareholder And Founder Documents
Even within your internal ownership arrangements, change in control concepts can matter - especially if one founder wants to sell or if new investors come in with rights that affect control.
It’s common to deal with this through a combination of:
- transfer restrictions (who can sell shares, and to whom);
- drag-along / tag-along rights;
- reserved matters (decisions requiring investor or founder consent);
- good leaver / bad leaver provisions.
These are typically set out in a well-drafted Shareholders Agreement (and often supported by your company’s articles).
Early-stage teams sometimes document expectations in a Founders Agreement, which can be a helpful starting point before you raise external investment (when “control” starts becoming a much more sensitive topic).
Customer And Supplier Contracts
If your startup has a handful of high-value customers, a change in control clause in those contracts can directly affect valuation.
Common examples include:
- enterprise supply or procurement contracts;
- managed services agreements;
- distribution or reseller arrangements;
- outsourcing agreements.
Suppliers can also include change in control clauses - particularly where they’ve offered favourable credit terms, exclusivity, or priority supply based on trust in your current owners.
Finance Documents (Loans, Notes, Security)
Finance providers are often very sensitive to control changes. It’s common to see:
- mandatory repayment if there’s a change in control;
- an event of default triggered by a change in control;
- requirements to notify the lender (or get consent) before any control shift.
If you’re borrowing money (even from friendly sources), it’s worth getting the structure right from the start with a properly drafted Loan Agreement, because “standard” terms can sometimes be far stricter than what a growing SME actually needs.
Commercial Leases And Property Agreements
Landlords sometimes include change in control provisions, especially where the tenant is a small company and the landlord wants comfort about who ultimately stands behind the lease obligations.
This may show up as:
- a right to terminate;
- a requirement for consent;
- additional security (like a guarantee or rent deposit) after the change.
If premises are business-critical, it’s worth checking these provisions carefully during any lease negotiation or review - a Commercial Lease Review can help identify these issues before you’re locked in.
Employment And Incentives
Change in control can also appear in employment arrangements, especially for senior hires, sales leaders, or key technical staff.
Examples include:
- bonus acceleration on sale;
- enhanced notice rights if there’s a post-acquisition restructure;
- restrictions on changing role/location after a change in control.
These terms can sit inside (or alongside) an Employment Contract. For an SME, the big risk isn’t just cost - it’s operational continuity when you’re trying to integrate or scale.
Data And Tech Contracts
If your business handles personal data or processes data for other organisations (for example, as a SaaS provider), a change in control clause may be paired with tighter controls around data sharing.
This is where your underlying privacy paperwork matters too, like a Data processing agreement where roles and obligations are clearly defined.
What Counts As “Change In Control”? Common Triggers You Should Watch
One of the biggest traps is assuming “change in control” only means selling 100% of your company.
In reality, definitions are often much wider - and sometimes vague.
Here are common trigger events you’ll see in UK commercial contracts:
1. Share Sale / Ownership Thresholds
Many clauses trigger when someone acquires more than a certain percentage of shares or voting rights, for example:
- more than 50% (a classic “control” threshold);
- more than 25% (often enough to block certain special resolutions, depending on the company’s articles and the type of resolution);
- any change of “ultimate beneficial owner”.
For startups raising multiple rounds, this matters because you might trigger a change in control just by issuing new shares - even if no one “buys” existing shares from founders.
2. Change Of Voting Control (Not Just Shareholding)
Some agreements focus on voting power rather than ownership. This can be relevant where different share classes exist (for example, “A” and “B” shares) or where voting arrangements shift.
3. Sale Of All Or Substantially All Assets
Even if you don’t sell shares, you might sell the business via an asset sale. Contracts sometimes define change in control to include a sale of:
- all (or most) business assets;
- the core IP;
- key customer contracts;
- the trading name and goodwill.
4. Merger Or Group Restructure
Group reorganisations can accidentally trigger change in control clauses, even when the “real people” behind the business haven’t changed. For example:
- creating a holding company above the operating company;
- moving IP into a separate entity;
- inserting a new subsidiary structure before investment.
If you plan to restructure (often a sensible step as you grow), you’ll want your contracts to allow it without needing to renegotiate everything.
5. Appointment Rights And Board Control
Sometimes “control” is defined by who can appoint or remove a majority of directors.
This matters in investment deals where an investor obtains board appointment rights, observer rights, or veto rights that shift practical control - even if their shareholding is below 50%.
How To Negotiate Change In Control Clauses Without Scaring Off The Deal
If you’re reading this and thinking, “We’ve already signed contracts with change in control clauses - what now?”, don’t stress. You usually have options.
And if you’re negotiating a new contract, you can often land on a middle ground that protects both sides.
Aim For Consent “Not To Be Unreasonably Withheld Or Delayed”
A common compromise is:
- the counterparty must consent to the change in control, but
- they can’t unreasonably withhold or delay that consent.
This keeps them protected against genuinely risky buyers (like a direct competitor), while reducing the chance they use the clause as leverage for unrelated renegotiations.
Limit Termination Rights (Or Require Notice)
If the clause allows termination, consider pushing for:
- a longer notice period post-change (for example, 60–90 days);
- termination only if the new controller is a competitor;
- a requirement to keep providing services during transition.
This can be critical where you’re reliant on a supplier or where continuity is important for customers.
Narrow The Definition Of “Control”
If “change in control” is defined too broadly, it may capture ordinary fundraising, employee option exercises, or internal reorganisations.
Practical ways to narrow it include:
- excluding share issues made for the purpose of fundraising;
- excluding internal group restructures where the ultimate owners remain the same;
- using a clear threshold (e.g. “more than 50% of voting rights”) rather than vague wording like “material change”.
Consider A Novation Or Variation Plan For Key Contracts
Sometimes the most realistic approach is to plan for how contracts will move or be updated as part of a transaction.
If you need to transfer the contract to a new entity (or a buyer requires it), you may need a Deed of Novation rather than an assignment.
This is particularly relevant where your buyer wants contracts sitting in a new vehicle, or where a supplier/customer refuses assignment but may accept novation.
Do A “Change In Control Audit” Before You Go To Market
If you’re considering:
- raising a significant round,
- selling the business,
- bringing in a strategic partner, or
- restructuring your group,
it’s smart to review your key contracts first. You’re looking for:
- change in control triggers;
- assignment restrictions;
- notification requirements;
- termination rights;
- any “event of default” clauses tied to ownership changes.
This kind of legal housekeeping often makes a transaction smoother, faster, and less stressful - and can reduce the chance of last-minute surprises in due diligence.
Key Takeaways
- Change in control clauses give the other party rights (like termination or consent) if your company’s ownership or control changes.
- These clauses can impact fundraising, acquisitions, and restructures - sometimes creating a hidden “veto” over your deal or weakening your negotiating position.
- Change in control clauses commonly appear in customer and supplier contracts, finance documents, leases, employment arrangements, and data/tech agreements.
- “Control” can be defined broadly (share thresholds, voting rights, board control, asset sales, and group restructures), so it’s important to check the definition carefully.
- You can often negotiate better outcomes by narrowing the definition, requiring consent not to be unreasonably withheld, limiting termination rights, or planning for novation/variations where needed.
- Doing a contract audit before a fundraise or sale can save major time and cost during due diligence - and help protect business value.
This article is general information only and isn’t legal advice. If you’d like advice for your specific situation, get in touch with a lawyer.
If you’d like help reviewing or drafting contracts to manage change in control risk (before you fundraise, restructure, or sell), reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.


