CLA Global will launch on 1 July.

The partnership between the two firms is expected to make CLA Global a top 15 global accounting and advisory organisation.

The network plans to add additional member firms throughout this year.

Sancho Simmonds, a partner at Evelyn Partners, will be co-CEO along with Joe Kask from CliftonLarsonAllen.

CliftonLarsonAllen LLP is the eighth largest accountancy firm in the United States with 7,500 staff and 121 US offices. It serves a number of accountancy markets and also has a wealth advisory and Financial Planning arm.

Andrew Wilkes, chief professional services director at Evelyn Partners, said: “There are many synergies between CliftonLarsonAllen and Evelyn Partners. Both of our firms are energised by working with private clients and their business interests and invest a lot in creating opportunities to grow our clients and our people.”

CLA Global’s member firms will provide audit, accounting, tax, and advisory services to both organisations and individuals.

Evelyn Partners and CliftonLarsonAllen said the new network will fill a gap among top global professional services organisations with a focus on fast-growing middle-market cross-border businesses, while also assisting international public interest and listed entities.

Tilney Smith & Williamson rebranded as Evelyn partners earlier this month. 

The firm started the rebranding process in March.

Bestinvest, the firm’s online investment platform and hybrid digital advice service, has remained a separate brand and is now known as Bestinvest by Evelyn Partners.

According to the Financial Planning and wealth management firm, the rebrand to Evelyn Partners reflects the business becoming ‘one firm with a single purpose’ following the Tilney and Smith & Wiliamson merger. The brand is named after Evelyn Gardens, the 1893 London address of one of the business’ founders.

Tilney and Smith & Williamson merged to become one firm in September 2020. The firm has since made a number of smaller acquisitions, mainly of advice firms.