Key Takeaways
- • Larson Gross, a Bellingham, Wash.-based IPA 200 firm with FY25 net revenue of $38.3 million, has acquired Denver-based ScaleUp Financial Solutions to expand its client accounting and advisory services (CAAS) practice.
- • ScaleUp, founded by Rachel Williams, brings approximately 25 professionals to Larson Gross and provides fractional CFO, controller, outsourced accounting and strategic financial advisory services to startups and growing businesses.
- • Williams and her team will remain with the business and gain access to Larson Gross's tax, audit and technology resources.
- • The deal adds financial modeling, forecasting, operational finance and executive-level advisory expertise to Larson Gross's existing CAAS practice.
- • Larson Gross previously partnered with Crete Professionals Alliance, now known as Current, which is backed by Thrive Holdings, in February 2025.
Summary
Larson Gross, an IPA 200 accounting firm based in Bellingham, Washington, with FY25 net revenue of $38.3 million, has acquired Denver-based ScaleUp Financial Solutions. The acquisition expands Larson Gross's client accounting and advisory services (CAAS) capabilities, according to the firm's announcement as reported in the source article.
ScaleUp provides fractional CFO, controller, outsourced accounting and strategic financial advisory services to startups and growing businesses, including venture-backed companies and businesses seeking financial leadership without hiring full-time executives. The firm was founded by Rachel Williams, and approximately 25 professionals will join Larson Gross. Williams and her team will remain with the business, continuing to serve existing clients while gaining access to Larson Gross's tax, audit and technology resources.
The acquisition builds on Larson Gross's existing CAAS practice by adding expertise in financial modeling, forecasting, operational finance and executive-level advisory services. Williams said the firm chose Larson Gross because of cultural alignment and pointed to its technology capabilities, noting that "our clients are demanding that AI be adopted in various ways." Larson Gross CEO Kelli Visser said ScaleUp's expertise and client-first approach support the firm's strategy of expanding advisory services while maintaining personalized client relationships.
Larson Gross partnered with Crete Professionals Alliance, now known as Current, in February 2025. The platform, backed by Thrive Holdings, provides participating firms with technology, infrastructure and operational support while allowing them to retain their local identities.
ScaleUp provides fractional CFO, controller, outsourced accounting and strategic financial advisory services to startups and growing businesses, including venture-backed companies and businesses seeking financial leadership without hiring full-time executives. The firm was founded by Rachel Williams, and approximately 25 professionals will join Larson Gross. Williams and her team will remain with the business, continuing to serve existing clients while gaining access to Larson Gross's tax, audit and technology resources.
The acquisition builds on Larson Gross's existing CAAS practice by adding expertise in financial modeling, forecasting, operational finance and executive-level advisory services. Williams said the firm chose Larson Gross because of cultural alignment and pointed to its technology capabilities, noting that "our clients are demanding that AI be adopted in various ways." Larson Gross CEO Kelli Visser said ScaleUp's expertise and client-first approach support the firm's strategy of expanding advisory services while maintaining personalized client relationships.
Larson Gross partnered with Crete Professionals Alliance, now known as Current, in February 2025. The platform, backed by Thrive Holdings, provides participating firms with technology, infrastructure and operational support while allowing them to retain their local identities.
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