Specialist Aderant team brings 30 years of experience helping large and complex law firms modernize the systems at the center of their revenue cycle
CHICAGO, Nov. 10, 2026 /PRNewswire-PRWeb/ -- Harbor, the leading provider of professional and technology services to the legal industry, today announced its acquisition of AAC Consulting, a specialist consulting firm focused on Aderant financial management systems. The acquisition deepens Harbor's ability to advise, implement, and manage the financial systems that run a law firm's revenue cycle, from time entry and billing to collections and profitability. Since 1996, AAC has supported more than 300 law firms and professional services organizations, with deep experience in implementations, upgrades, cloud migrations, data conversion, and custom development for large and complex firms.
A law firm's financial systems sit at the center of its revenue cycle. They hold the data firms need to price work, manage profitability, and improve operations, and they are the foundation for putting AI to work across the business. They are also the part of a firm's technology that has been slowest to change.
According to the 2026 ILTA Technology Survey, most firms have moved email and document management to the cloud, but only 60% have done the same for time and billing, and the largest firms are furthest behind. That gap is now closing: one in five firms plan to replace their time and billing system within the next year. For the many firms still running Aderant on their own servers, that means now deciding when and how to move to Expert Sierra, Aderant's cloud platform, while also managing upgrades, mergers, and rising demand for better financial data. The work is technical and high-stakes, and the people who know these systems well are hard to find.
"Wherever a law firm is in modernizing its revenue cycle, Harbor can meet it there, whether that means rethinking its operating model, moving to the cloud, running its systems day to day, or using AI across the business to improve working capital," said Matt Sunderman, CEO of Harbor. "Financial systems are one important piece of that, and 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."
AAC supports law firms across the full lifecycle of their Aderant systems, including system assessments and planning, implementations and project management, upgrades and moves to Expert Sierra, data conversion and merger-related systems work, custom development and integrations, testing, and post-implementation support. Its consultants are known for practical, tailored solutions to complex problems, particularly for large, multi-office, and multi-currency firms.
"Clients come to us for people who know Aderant inside out and will stay with a problem until it's solved," said Ben Starkie, President and CEO of AAC Consulting and now Managing Director, Enterprise Solutions, leading Harbor's Aderant business. "Joining Harbor gives our team more reach into large firms, including in the UK through Harbor's London and Belfast teams, more colleagues to support a project, and a strong foundation for the years ahead. Our clients keep the team they know, now backed by far deeper resources."
The AAC team joins Harbor's Enterprise Solutions practice, where it will work alongside Harbor's existing Financial Systems team. Clients will continue working with the same teams, and active projects continue as planned.
"For firms on Aderant, the next few years bring big decisions, from moving to Expert Sierra to bringing two firms' financial systems together after a merger," said Justin Farmer, Practice Group Leader, Enterprise Solutions at Harbor. "With AAC, our Financial Systems team has more of the people who have done this work many times over. The people who help a firm plan the work are the same people who deliver it and support it afterward."
AAC Consulting is the fourth acquisition Harbor has completed since receiving a majority investment from BayPine LP, a private investment firm specializing in digital transformation in of market-leading businesses, in June 2025. AAC adds to Harbor's Aderant work alongside iTrain, which Harbor acquired in June 2026.
For more information about Harbor's Aderant services, visit https://harborglobal.com/partners/aderant/.
About Harbor
Harbor is the leading provider of professional and technology services to the legal industry, encompassing strategy, technology, operations, and intelligence. With a global team of nearly 1,000 professionals, Harbor works with more than 80% of Global 200 law firms and close to 600 corporate law departments to optimize performance and enable business and digital transformation. Headquartered in Chicago, the company has offices in London, Belfast, Moncton, and Sydney.
Harbor, a BayPine LP portfolio company, is advancing its next phase of growth by broadening its technology, data, and managed services capabilities across the legal sector. For more information, visit www.harborglobal.com.
About AAC Consulting
Founded in 1996, AAC Consulting is a specialist consulting firm focused on Aderant financial management systems for law firms and professional services organizations. Its consultants support clients with system assessments, implementations, upgrades, cloud migrations, data conversion, custom development, and technical services. AAC Consulting is now part of Harbor.
About BayPine
BayPine is a private equity firm purpose-built for the digital age. We partner with leading middle-market businesses in traditional sectors of the economy and help transform them into digital-first enterprises through the thoughtful deployment of technology, including AI. Founded in 2020 by seasoned investors and operators, BayPine is headquartered in Boston with an office in New York. For more information, please visit www.baypine.com.
Media Contact
Grant Ludmer, LIMELIGHT, 1 973-980-1619, [email protected], www.limelightgrowth.com
SOURCE Harbor
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