Harbor Acquires AAC Consulting to Expand Aderant Services

2 min readSources: LegalTech News

Harbor acquired AAC Consulting, an Aderant-focused legal tech firm, on Nov. 10, 2026.

Why it matters: The acquisition strengthens Harbor's position in legal financial management systems consultancy, impacting firm operations and competitive dynamics.

  • AAC Consulting specializes in Aderant financial management systems and has served over 300 law firms since 1996.
  • Harbor received majority investment from BayPine LP in June 2025 and has made four acquisitions since.
  • Previous acquisitions include CLIENTSFirst Consulting, Ascertus, Pinnacle, and iTrain.
  • Harbor’s global team has nearly 1,000 professionals and serves over 80% of Global 200 law firms.

On November 10, 2026, Harbor announced its acquisition of AAC Consulting, a firm focused on Aderant financial management systems. AAC has supported more than 300 law firms and professional services organizations since its founding in 1996.

This marks Harbor's fourth acquisition since BayPine LP invested a majority stake in June 2025. Earlier buys included CLIENTSFirst Consulting in March 2025, Ascertus in October 2024, Pinnacle in February 2024, and iTrain in July 2026.

Matt Sunderman, CEO of Harbor, said, "AAC has earned the trust of some of the most respected firms in the market. Bringing their team together with ours gives clients more depth in how we advise, implement, and manage these systems." Ben Starkie, AAC's President and CEO, noted that joining Harbor extends their reach into large firms globally, including UK offices in London and Belfast.

Harbor’s nearly 1,000-strong team serves more than 80% of the Global 200 law firms and close to 600 corporate law departments. Integrating AAC strengthens Harbor’s financial systems and revenue cycle advisory capabilities, advancing its strategy to be a top consultant in legal technology financial management.

By the numbers:

  • 300+ law firms and organizations served by AAC Consulting since 1996
  • 80%+ of Global 200 law firms served by Harbor
  • 4 acquisitions completed by Harbor since BayPine’s June 2025 investment