UK M&A advisors for agencies, tech & consultancy businesses

From London, SI Global advises UK agencies, consultancies and technology services businesses on domestic and cross-border M&A. Our clients include founders, management teams, corporates and investors.

Talk to our UK team View our deal track record

What we advise on in the UK

Full-service M&A and corporate finance advice for founders and investors across technology & data, media & marketing and consultancy services.

Sell-side M&A

We advise founders, shareholders and management teams from valuation and positioning through buyer engagement, negotiation and completion. The process is built around a clear investment case and the counterparties with the strongest reason to buy.

Preparation for sale & growth advisory

Ahead of a transaction, we identify the issues most likely to affect buyer interest and valuation, then work with management on the proposition, leadership structure, financial reporting and growth plan.

Buy-side & acquisition strategy

We advise corporates, agency groups and private equity-backed businesses on acquisition strategy, market mapping, target identification, confidential approaches, negotiation and execution in the UK and overseas.

Private equity & growth investment

For private equity or growth-capital investment, we assess the available options, position the business, identify suitable investors and negotiate a structure that balances new capital, shareholder liquidity and long-term growth.

Recent UK and international transactions

  • Candyspace — sale to Quantiphi
  • Swanky — investment from YFM Equity Partners
  • Tancredi — sale to PPHC
  • Revere — sale to Marketbridge
  • The Forge — sale to MSQ
  • DMPG — sale to Havas

The deals cover digital product, ecommerce, strategic communications, B2B marketing, strategy and innovation, data-led marketing and brand design. They include trade sales, private equity investment and buy-side acquisitions.

Why sector experience matters

Agency, consultancy and technology services businesses are not valued on financial performance alone. Buyer appetite is shaped by factors such as:

  • Client relationships
  • Talent
  • Intellectual property
  • Recurring revenue
  • Platform partnerships
  • Management depth
  • Response to technological change

Because we work in these markets every day, we know the buyer landscape and the strategic priorities shaping it. That knowledge helps us present the business in terms trade acquirers and financial investors recognise.

UK knowledge with international buyer access

Overseas buyers often look to the UK for specialist capability, talent, client relationships or a base for European growth. UK groups and private equity-backed businesses also use M&A to enter new markets and add services.

Our London team works with colleagues and counterparties across Europe, North America, Asia-Pacific and the Middle East. Buyer and target lists are built around commercial rationale, not constrained by borders, with senior advisers involved throughout.

Cross border track record

In the past five years, SI Global have completed 52 cross-border deals across 22 geographies.

Since 2025, we have delivered more than $600m in closed transaction value. Enterprise values have ranged from $15m to $75m, with seven deals above $30m.

52
Cross-border deals in the past five years
22
Geographies covered
$600m+
Closed transaction value since 2025
7
Deals above $30m (EV range $15m–$75m)

Our London office

 

London

Orion House, 3rd Floor
5 Upper St. Martin’s Lane
London WC2H 9EA

+44 20 7664 8729

Frequently asked questions

What size of UK businesses does SI Global advise?

SI Global focuses on the lower and mid-market, advising ambitious founder-led and privately owned businesses, corporate groups, private equity firms and portfolio companies. Suitability depends on the business, sector and objectives rather than a single revenue threshold.

How long does it take to sell an agency, consultancy or tech services company?

Timelines vary according to preparation, buyer interest, deal complexity and diligence. A well-prepared competitive process commonly takes several months from launch to completion, with preparation beginning earlier.

How does SI Global help founders prepare for sale?

We clarify shareholder objectives, assess valuation and readiness, strengthen positioning and management information, identify risks and prioritise the changes that can improve the result.

Does SI Global provide buy-side advice?

Yes. We advise corporate and private equity-backed buyers on acquisition strategy, target research and identification, market access, approach, negotiation and transaction execution.

Thinking of selling your UK business?

Speak to our M&A team

Other locations

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Strategy & Investment Partners Consulting Limited, registered office at Gladstone House, 77-79 High Street, Egham, Surrey, United Kingdom, TW20 9HY, Company Number 09051131. Strategy & Investment Partners Consulting Limited (FRN 945861) is an Appointed Representative of Strata Global Ltd (FRN 563834) which is Authorised and Regulated by the Financial Conduct Authority. The Principal is registered in  England & Wales, registered office at 7-11 Moorgate, London EC2R 6AF, Company Number 07707508.