Riveron acquires accounting advisory firm Effectus Group

Riveron, a Dallas-based business advisory firm, has acquired Effectus Group, a San Jose-based accounting advisory and financial operations firm.

Founded in 2013, Effectus provides services in technical accounting, IPO, transaction advisory, FinOps sustems, risk advisory and compliance, and managed accounting services. The firm specializes in advising high-growth technology and life sciences companies.

Effectus has locations in San Jose; Pleasanton, CA; Lehi, UT; and New York. The firm has more than 150 employees listed on LinkedIn.

Riveron’s acquisition of Effectus will expand its California presence and strengthen its capabilities in accounting, finance, and capital markets.

“The partnership with Effectus Group represents a pivotal step in Riveron’s growth strategy,” said Sam Shaw, CEO of Riveron. “Their deep expertise in technical accounting, capital markets, and their strong presence in the life sciences and technology sectors complement our existing strengths. Together, we are well-equipped to provide unparalleled service to our clients, particularly in the fast-evolving venture capital and public markets spaces.”

The deal will expand Riveron’s accounting advisory team to 300+ professionals. The wider firm has over 1,200 professionals across 16 global offices.

“Joining forces with Riveron allows us to accelerate our growth and expand our service offerings to a wider audience,” said Mike Montgomery, CEO of Effectus Group, who will take on a senior leadership role at Riveron as well as retain significant equity ownership in the combined company. “We are excited to continue our work in the technology and life sciences sectors while also leveraging Riveron’s strengths in private equity and broader office of the CFO capabilities.”

The Effectus transaction builds on Riveron's July acquisition of Yantra, a Santa Clara, CA-based IT consulting firm.

Kohlberg & Company last year acquired Riveron from H.I.G. Capital.