Prosperity Partners, a tax, client accounting and transaction support services company based in Chicago, US, has secured a “majority growth investment” from private equity firm Lightyear Capital.
Financial terms of the transaction were not disclosed.
Access deeper industry intelligence
Experience unmatched clarity with a single platform that combines unique data, AI, and human expertise.
The deal is expected to close in the third quarter of 2026, subject to customary regulatory approvals.
Following completion, Unity Partners, which invested in Prosperity in April 2023, will retain a minority stake in the business.
Founded in 2003, Prosperity Partners provides tax advisory, client accounting and transaction support services to high-net-worth individuals, family offices and entrepreneurial businesses across the US.
The company has more than 250 employees and operates offices in Burlington, Chicago, Detroit, Houston, Iselin, Kansas City, New York City, Santa Barbara and Washington, DC.
Prosperity co-founder and CEO Jeremy Dubow said: “As we enter our next stage of growth supported by the outstanding Lightyear team, we are eager to pursue our lofty strategic goals and to continue to provide premier services to high net-worth individuals, family offices and closely held businesses.”
The Chicago-based business introduced an Employee Purpose Plan at the time of Unity’s initial investment. Prosperity said this employee ownership programme will distribute approximately $18m in proceeds across its employee base.
Lightyear and Prosperity have also agreed to continue an employee ownership programme for qualifying employees.
Guggenheim Securities served as the lead financial advisor to Prosperity and Unity, while Koltin Consulting Group acted as an additional financial adviser to both parties. Kirkland & Ellis provided legal counsel to Prosperity, while Davis Polk advised Lightyear on the transaction.
Koltin Consulting Group founder Allan Koltin said: “Prosperity, one of the first accounting firms to partner with private equity, in just over three years, has grown from a small, sophisticated tax business into a national platform offering a full suite of services to an incredible client base.
“The partnership with Lightyear will elevate Prosperity’s brand and position it to be one of the best accounting, tax and advisory businesses in the country. From their initial meeting, it was clear that Prosperity and Lightyear were aligned on their strategic goals and would be incredible partners.”
Earlier this month, Meaden & Moore Advisors, an Ohio-based accounting business, received investment from Unity Partners.
