Sun European affiliate acquires K3 Capital Group

  • Sun expands professional services portfolio with the acquisition of K3
  • K3 provides specialist advisory services to small and medium enterprises
  • Sun European to apply its operational and buy-and-build expertise to help accelerate growth.

London, UK, March 1, 2023 – An affiliate of Sun European Partners, LLP (“Sun European”), a leading private investment firm focused on defensible businesses in growing markets, with tangible performance improvement opportunities, has today completed the acquisition of K3 Capital Group (‘K3’ or the ‘Company’), adding to Sun’s growing professional services portfolio.

Founded in 1998, K3 is a multi-disciplinary advisory services provider for small and medium enterprises (SMEs), specialising in business/company sales (M&A), restructuring and insolvency, and tax advisory services in the UK. K3 has a strong record of accretive add-ons, having completed nine acquisitions since 2017. This acquisition strategy has transformed K3 from a single division focussed on business sales into a multi-disciplinary advisory group providing complementary services across its three core divisions. K3’s unique marketing platform has created a differentiated go to market strategy across the wider business, enabling K3 to drive organic growth by proactively engaging with prospective clients.

The acquisition highlights Sun European’s drive and focus on seeking strong companies within the professional services space. Other examples of this include the acquisition of Fletchers Solicitors in 2021 which has grown considerably under Sun’s ownership through a combination of accretive M&A and organic growth initiatives. Sun European is aiming to use a similar strategy to help K3 achieve its growth ambitions.

John Rigby, CEO of K3, said: “We are thrilled to welcome Sun as investors who share our vision, ambition, and appetite for innovation. This is a landmark transaction for K3 as Sun European’s involvement will help shape the company’s next stage of growth, as well as allow us to continue driving organic growth by proactively engaging with prospective clients”

Alexander Wyndham, Principal at Sun European Partners, added: “The professional services sector is an area of particular focus for Sun European. John and his management team have built a great company through a successful track record of both organic growth and acquisitions. We look forward to working with them as they build on their capabilities and continue to further diversify across professional services via accretive M&A.”

– Ends –

About Sun European Partners, LLP
Sun European Partners, LLP is a leading private investment advisory firm, focused on partnering with outstanding management teams to accelerate value creation. Since 1995, affiliates of Sun European have invested in more than 475 companies worldwide with revenues in excess of €40 billion across a broad range of industries and transaction structures. The Firm has built a reputation as a trusted partner, recognised for its operational experience. Sun European focuses on defensible businesses in growing markets with tangible performance improvement opportunities in the Business Services, Consumer, Healthcare, Industrial, and Technology sectors. Sun European Partners has offices in London and affiliates with offices in Boca Raton, Los Angeles, and New York.

Further information is available at

About K3 Capital Group
K3 Capital Group plc, is a multi-disciplinary and complementary group of professional services businesses advising UK SMEs and with some operations overseas. The company listed on the AIM market in April 2017. The Company’s divisions operate through multiple brands such as Knightsbridge, KBS Corporate, KBS Corporate Finance, Knight Corporate Finance and Knight Transaction Services (Business Sales), Quantuma and Quantuma International (Restructuring), Randd, Knight R&D and K3 Tax Advisory (Tax).

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Media contacts
07928 471 013 / 07815 068 387
Jen Renwick / Julia Tilley

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