Executive Overview
The investment is not merely a capital infusion; it represents a fundamental structural evolution for HBK. To comply with regulatory frameworks governing the public accounting industry, HBK will adopt an alternative practice structure (APS) prior to the transaction’s close. This framework has rapidly become the gold standard for private equity-backed accounting firms, separating attest services from non-attest advisory, tax, and wealth management lines of business.
For HBK—which operates across 27 offices in seven states and India, serving tens of thousands of high-net-worth individuals, family offices, and entrepreneurial businesses—the partnership provides deep pockets to accelerate both organic and inorganic growth. More importantly, it highlights a broader industry transformation. According to industry experts, private equity deployment has successfully trickled down from the industry’s "heavyweights" ($750 million-plus in revenue) and "middleweights" ($250 million to $750 million) to the "welterweight" tier of firms under $250 million. As institutional capital reshapes the landscape, the HBK-H.I.G. alliance serves as a bellwether for how mid-sized professional services firms plan to scale, invest in cutting-edge technology, and secure their competitive edge in an increasingly consolidated marketplace.
Detailed Chronology and Transaction Mechanics
The journey toward HBK’s partnership with H.I.G. Capital represents a carefully orchestrated evolution of corporate strategy. While the official public announcement was made public on August 25, negotiations and strategic evaluations unfolded over many months as HBK evaluated its long-term positioning within a rapidly shifting market.
Under the terms of the agreement, HBK’s current leadership team, including Tom Angelo and Chris Allegretti, will remain at the helm, ensuring operational continuity. The leadership’s primary mandate is clear: scale the business while preserving the firm’s 75-year-old culture, client-first philosophy, and service standards across its tripartite ecosystem—HBK CPAs & Consultants, HBKS Wealth Advisors, and Vertilocity, the firm’s proprietary technology advisory practice.
Implementing the Alternative Practice Structure (APS)
A critical mechanic of the H.I.G. transaction is the adoption of an alternative practice structure prior to the fourth-quarter 2026 closing. Because state boards of accountancy and the American Institute of CPAs (AICPA) enforce stringent rules regarding non-CPA ownership of public accounting firms, outside institutional investors cannot hold direct equity stakes in entities that issue audit opinions and perform attest functions.
To navigate these regulations while unlocking institutional capital, HBK will reorganize into a bifurcated, multidisciplinary model:
- Attest Services: All audit, review, and attest functions will continue to be provided exclusively by Hill, Barth & King LLC. This licensed CPA firm will retain its historic name, operating under the absolute ownership and control of its licensed CPA partners.
- Advisory and Tax Services: Tax compliance, business consulting, accounting, and general advisory services will transition to HBK Advisory Group LLC.
- Wealth Management: Wealth planning, asset management, and advisory services will continue to be delivered through HBK Sorce Advisory LLC, widely known in the market under its trade name, HBKS Wealth Advisors.
Industry observers note that this architecture allows firms to monetize non-attest business units and secure growth capital without compromising professional independence or regulatory compliance. Existing clients will experience no disruption, continuing to work with the same multidisciplinary teams, in the same offices, under identical standards of care.
To successfully execute this complex cross-border transaction, both firms enlisted elite advisory counsel. HBK tapped Houlihan Lokey to serve as its exclusive financial advisor, with Levenfeld Pearlstein LLC providing legal counsel. Conversely, H.I.G. Capital retained William Blair as its financial advisor and Ropes & Gray LLP as legal counsel.
Supporting Context & Market Metrics: The Private Equity Tsunami
The acquisition of a stake in HBK by H.I.G. Capital is just one chapter in a much larger, highly transformative macro-trend sweeping across the professional services landscape. For decades, traditional CPA firms operated strictly as partnerships funded entirely by internal equity buy-ins from working partners. However, staggering capital requirements—driven by aggressive investments in cloud technology, AI-driven automation, cyber security infrastructure, and fierce competition for top-tier talent—have rendered the traditional partnership funding model increasingly obsolete.
The Rise of Institutional Capital in Accounting
In just the past five years, private equity has fundamentally disrupted the accounting profession. According to Allan Koltin, CEO of Koltin Consulting Group—a leading M&A advisory firm in the CPA space—the market has witnessed the formation of nearly 50 private equity platforms tied to CPA firms nationally.
Koltin categorizes this evolution into three distinct weight classes:
- The Heavyweights: Firms with revenues exceeding $750 million. These were the earliest adopters of private equity, setting the stage for massive national consolidation.
- The Middleweights: Firms generating between $250 million and $750 million in revenue, which followed suit to defend their market share and expand their geographic footprint.
- The Welterweights: Firms with revenues under $250 million—the tier into which HBK falls—which are now aggressively securing institutional partners to compete with mega-firms.
H.I.G. Capital’s Global Footprint
To understand the magnitude of HBK’s new partner, one must examine H.I.G. Capital’s formidable global footprint. Headquartered in Miami, Florida, with domestic offices spanning Atlanta, Boston, Chicago, Los Angeles, New York, San Francisco, and Stamford, the firm maintains an extensive international presence with affiliate offices in key global financial centers including London, Hamburg, Luxembourg, Madrid, Milan, Paris, Bogotá, Rio de Janeiro, Dubai, and Hong Kong.
Specializing in providing both debt and equity capital to the lower- and middle-market sectors, H.I.G. manages approximately $75 billion of capital. Its active portfolio comprises over 100 companies generating combined annual sales in excess of $53 billion. This immense liquidity and operational expertise provide HBK with access to resources that far exceed the capabilities of a traditional regional accounting firm.
Official Statements and Stakeholder Perspectives
Leadership from both HBK and H.I.G. Capital have emphasized that the partnership is anchored in shared values, strategic alignment, and an unwavering commitment to quality.
Tom Angelo, CEO of HBK CPAs & Consultants, underscored the cultural continuity of the firm in his official statement:
"This partnership marks an exciting new chapter for HBK. In H.I.G., we found a partner that shares our values and our long-term vision, and that recognizes what makes HBK special. With H.I.G.’s resources and experience, we will invest further in our people, our technology, and our client service capabilities, expanding both what we can do for our clients and the opportunities we can create for our team while preserving the culture that has defined our firm since 1949."
The enthusiasm is mirrored across the firm’s wealth management division. Chris Allegretti, CEO of HBKS Wealth Advisors—a practice consistently recognized on the Barron’s Top RIA Firms list (rising to #73)—noted that client service standards remain paramount:
"Partnering with H.I.G. gives us the resources to scale our business and invest in the professionals and technology that matter most to our clients. HBKS clients will continue to work with the same advisors, in the same offices, under the same standard of care, as we continue to deliver comprehensive advice to individuals, families, and business owners."
From the investor’s perspective, Chris Byrne, Managing Director at H.I.G. Capital, expressed deep admiration for HBK’s legacy and market positioning:
"HBK is one of the most respected firms in accounting and wealth management, with more than 75 years of technical excellence and a reputation built on trusted, long-term client relationships. We are very impressed with the HBK team and how they have built the firm into an employer of choice across two highly attractive industries. We are thrilled to partner with Tom, Chris, and the entire HBK team to support the firm’s next phase of growth."
Adding an independent industry perspective, Allan Koltin highlighted the strategic significance of the deal:
"The good news to report is that we are now approaching 50 Private Equity platforms of CPA firms nationally (all created in the past 5 years!) and most of them are doing well. The big question will be how long will it take for significant consolidation to take place within the existing platforms?"
Koltin pointed to historical precedents in the welterweight category, citing success stories like Prosperity Partners (which scaled from $10 million to $80 million in three years before flipping from Unity Partners to Lightyear Capital) and Smith-Howard (which grew from $40 million to $180 million in three years under Broad Sky Partners before transitioning to TPG Growth). "It will be interesting to see if HBK can emerge with the same success and organic and inorganic growth rates going forward," Koltin added.
Future Outlook: What Lies Ahead for HBK and the Industry
As HBK prepares to close its transaction with H.I.G. Capital in the fourth quarter of 2026, the firm stands at the threshold of an unprecedented expansion cycle. With institutional backing, HBK is positioned to aggressively target three core pillars of future growth:
1. Technological Modernization and AI Integration
Modern accounting, tax preparation, and wealth management demand massive capital investments in advanced cloud architecture, secure client portals, and proprietary artificial intelligence tools capable of automating routine compliance work. By leveraging H.I.G.’s financial resources, HBK—alongside its technology advisory arm, Vertilocity—can accelerate its digital transformation, offering clients streamlined, data-driven insights.
2. Strategic M&A and Geographic Expansion
Armed with private equity capital, regional firms are no longer constrained by organic partner earnings when funding acquisitions. HBK is expected to pursue bolt-on acquisitions of smaller accounting practices and wealth management firms across the United States, expanding its 27-office footprint and deepening its penetration in key metropolitan markets.
3. Talent Acquisition and Retention
The accounting profession faces a well-documented talent shortage, with fewer graduates entering the CPA pipeline. Private equity funding allows firms like HBK to offer highly competitive compensation packages, comprehensive equity incentives for rising leaders, and continuous professional development programs, cementing its status as an "employer of choice."
The Broader Horizon for Private Equity in Accounting
The overarching question facing the professional services sector is how these nearly 50 private equity platforms will evolve over the next decade. As Koltin noted, industry history suggests that mid-sized "welterweight" platforms will either scale organically and inorganically to rival the nation’s mega-firms or eventually "tuck into" larger heavyweight platforms within three to five years.
For HBK, the immediate future is focused on a seamless transition, finalizing its alternative practice structure, and executing a growth strategy that respects its 75-year heritage while embracing the aggressive momentum of institutional finance. As other mid-sized firms watch closely, the HBK-H.I.G. alliance may well serve as a masterclass in balancing traditional client stewardship with modern corporate scaling.
