Professional Services Acquisitions in Washington
Showing 23 transactions.
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September 2, 2025
- Buyer
- DuCharme, McMillen & Associates, Inc. (DMA)
- Target
- Tax Advisors, PLLC
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
DuCharme, McMillen & Associates, Inc. (DMA) has acquired Tax Advisors, PLLC, a Vancouver, Washington-based property tax consulting firm. The deal expands DMA's property tax and cost segregation capabilities, strengthens its presence in the Portland area, and brings Tax Advisors' specialized expertise (including cost segregation/179D studies) into DMA's national platform.
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August 16, 2025
- Buyer
- Gridiron Capital
- Target
- ABC Legal Services, LLC
- Seller
- Aquiline
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
Gridiron Capital has acquired ABC Legal Services, a leading provider of service of process (SOP) and court filing solutions, from Aquiline. Gridiron plans to leverage ABC Legal's tech-enabled, dual-sided network to expand services, enhance digital capabilities, and drive market growth across law firms, corporations, and government clients.
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April 8, 2025
- Buyer
- M|C Partners
- Target
- The Institute for Corporate Productivity (i4cp)
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Growth capital
Boston-based private equity firm M|C Partners has made a strategic growth investment in The Institute for Corporate Productivity (i4cp) to support expansion of its HR research, advisory and subscription offerings. As part of the transaction, i4cp appointed Terry Waters as CEO; financial and legal advisors included Intrepid Investment Bankers, Cooley, and Choate, Hall & Stewart LLP.
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- Buyer
- Rainier Partners
- Target
- Welfare & Pension Administration Service (WPAS)
- Seller
- Periscope Equity
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
Rainier Partners has completed a platform investment in Welfare & Pension Administration Service (WPAS), a Mercer Island, Washington–based third-party administrator (TPA) specializing in Taft-Hartley multi-employer benefit plan administration. The transaction represents a sale by Periscope Equity and will provide WPAS with capital and operational support to scale its services and serve more multi-employer trusts nationwide.
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December 5, 2024
- Buyer
- Salon Republic, Riata Capital Group
- Target
- Mosaic Salons + Spas
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Addon
Salon Republic, a portfolio company of Riata Capital Group, has acquired Mosaic Salons + Spas in Seattle, Washington. The add-on expands Salon Republic's West Coast footprint and increases its presence in the Pacific Northwest; terms were not disclosed.
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September 26, 2024
- Buyer
- Carrier Johnson + Culture
- Target
- Communita | Atelier
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
Carrier Johnson + Culture has merged with Seattle-based Communita | Atelier to integrate Communita’s landscape architecture and urban planning expertise into Carrier Johnson + Culture’s multidisciplinary design platform. The combined firm will broaden service offerings and expand Carrier Johnson + Culture’s presence in the Pacific Northwest.
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July 15, 2024
- Buyer
- Harbour Benefit Holdings, Inc.
- Target
- A.W. Rehn & Associates, Inc.
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Addon
Harbour Benefit Holdings, Inc. acquired A.W. Rehn & Associates, Inc., a Spokane-based third‑party administrator of health, welfare, and retirement plans, effective July 15, 2024. Rehn will operate as a wholly owned, independently operating subsidiary within Harbour's family of companies to expand Harbour's Pacific Northwest presence and broaden its national client base.
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February 14, 2024
- Buyer
- The Riverside Company, Performance Systems Integration (PSI)
- Target
- Fire Safety Pros, LLC
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Addon
The Riverside Company has acquired Fire Safety Pros, LLC (FSP) as an add-on to its fire and life safety platform, Performance Systems Integration (PSI). FSP, a Seattle-based provider of fire and life safety inspection, maintenance, monitoring and equipment sales to commercial building owners and property managers, will be integrated into PSI to expand the platform's presence in the greater Seattle market.
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- Buyer
- Main Post Partners
- Target
- Highland Arms Enterprises
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Growth capital
Main Post Partners has made a strategic growth investment in Highland Arms Enterprises (HAE), one of the largest Neighborly franchisee operators within the Precision Garage Door Service system. The capital will support HAE’s expansion—including additional Precision franchise acquisitions and potential purchases of other Neighborly brands—while founder Kevin Spratt and the existing management team remain in place.
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January 5, 2023
- Buyer
- KPMG LLP
- Target
- The Arnold Group LLC
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
KPMG LLP has acquired The Arnold Group LLC, a Seattle-based strategy consultancy focused on go-to-market and commercialization for B2B technology companies. The acquisition expands KPMG's strategy and commercial capabilities in the technology sector and brings The Arnold Group's team into KPMG to scale delivery across strategy, design, and implementation.
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May 26, 2022
- Buyer
- Performance Systems Integration (PSI), The Riverside Company
- Target
- Evergreen Fire and Life Safety, LLC
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Addon
Performance Systems Integration (PSI), a fire and life safety platform owned by The Riverside Company, acquired Evergreen Fire and Life Safety, LLC, a Lynwood, Washington-based provider of fire and life safety inspection, repair and maintenance services. The add-on expands PSI's coverage in the Greater Seattle metro and strengthens the platform's inspection, maintenance and parts capabilities across the Pacific Northwest.
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- Buyer
- The Riverside Company, Performance Systems Integration (PSI)
- Target
- General Fire Extinguisher Service, Inc.
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Addon
The Riverside Company has acquired General Fire Extinguisher Service, Inc. as an add-on to its fire and life safety platform, Performance Systems Integration (PSI). The acquisition expands PSI’s presence into Eastern Washington and adds recurring inspection, maintenance and installation capabilities in the Spokane market.
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January 24, 2022
- Buyer
- Schellman
- Target
- Scott S. Perry, CPA PLLC
- Seller
- Scott S. Perry, CPA PLLC
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
Tampa-based Schellman has acquired Bellevue-based Scott S. Perry, CPA PLLC to expand its crypto and Web3 digital trust practice. Scott Perry will join Schellman's leadership team as the firm integrates his expertise in certificate authority audits and related trust technologies.
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December 21, 2021
- Buyer
- An affiliate of Peak Rock Capital, Peak Rock Capital
- Target
- Xenon arc Inc.
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
An affiliate of Peak Rock Capital has completed the acquisition of Xenon arc Inc., a Bellevue, Washington–based technology‑enabled services provider for food & beverage, industrial and chemical manufacturers. Peak Rock will partner with Xenon arc's management team to accelerate growth through investments in technology, service capability expansion and complementary add‑on acquisitions to expand geographic coverage.
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September 28, 2021
- Buyer
- E78 Partners
- Target
- NextLevel
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
E78 Partners, a provider of finance, accounting and technology solutions for private equity portfolio companies, has acquired Seattle-based NextLevel, an executive services firm that supplies interim C-suite and senior operating executives. The acquisition expands E78's executive services capabilities and gives the firm a direct foothold in the Pacific Northwest; NextLevel's team of well over 100 operating executives will join E78 and continue serving existing clients during a transition period.
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August 18, 2021
- Buyer
- The Riverside Company, Performance Systems Integration (PSI)
- Target
- R&T Hood and Duct Services, Inc. (fire protection division)
- Seller
- R&T Hood and Duct Services, Inc.
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Addon
The Riverside Company has acquired the fire protection division of R&T Hood and Duct Services, Inc. as an add-on to its Performance Systems Integration (PSI) fire and life safety platform. The deal strengthens PSI's presence in the Seattle market and expands Riverside's regional fire and life safety capabilities across the Pacific Northwest.
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- Buyer
- The Riverside Company, Performance Systems Integration (PSI)
- Target
- Oxarc, Inc. (fire protection division)
- Seller
- Oxarc, Inc.
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Addon
The Riverside Company has acquired the fire protection division of Oxarc, Inc. as an add-on to its fire and life safety platform, Performance Systems Integration (PSI). The acquisition expands PSI's footprint in the Pacific Northwest and Mountain West and adds inspection, maintenance, installation and equipment sales capabilities across Washington, Oregon and Idaho.
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- Buyer
- Tonka Bay Equity Partners LLC
- Target
- Professional (formerly Professional Credit & Ensource)
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Growth capital
Tonka Bay Equity Partners made a strategic growth investment in Professional (formerly Professional Credit & Ensource), a U.S.-based provider of first- and third-party accounts receivable management and revenue cycle services. The investment will support Professional’s geographic expansion, continued technology investment and growth while the company’s leadership and service lines remain unchanged.
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- Buyer
- American Express Global Business Travel
- Target
- Egencia
- Seller
- Expedia Group
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Divestiture
American Express Global Business Travel (GBT) has made a binding offer to acquire Egencia, the corporate travel arm of Expedia Group, bringing Egencia into GBT’s business travel platform. As part of the proposed deal Expedia Group would take a shareholder stake in GBT and enter a long-term commercial agreement to power Egencia, subject to employee consultations and customary regulatory approvals.
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April 30, 2021
- Buyer
- BIG Language Solutions
- Target
- Language Link
- Seller
- Jeff Barger
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
BIG Language Solutions (BIG) has acquired Language Link, a Vancouver, Washington-based language service provider specializing in over-the-phone (OPI) and video remote interpreting (VRI). The deal closed April 30, 2021; Language Link (founded 1991) reported roughly USD 27.5m revenue in 2020 and ~120 full-time employees. BIG said the acquisition accelerates its regulated-industry expansion (healthcare, government) and complements its buy-and-build strategy.
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January 2, 2021
- Buyer
- ArcherHall, LLC
- Target
- eDiscovery Inc.
- Seller
- Allison Goodman, eDiscovery Inc.
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
ArcherHall, a Sacramento-based provider of digital forensics and e-discovery services, has acquired Bellevue-based eDiscovery Inc. The eDiscovery Inc. team — led by founder Allison Goodman — will continue serving clients from the Bellevue office under the ArcherHall brand, expanding ArcherHall's forensic and e-discovery capabilities in the Pacific Northwest.
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September 14, 2020
- Buyer
- OneDigital
- Target
- Resourceful HR
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
OneDigital has acquired Resourceful HR, a Seattle-based human resources consulting firm led by Jennifer Olsen, to expand its HR consulting footprint in Washington and the Northwestern United States. The deal integrates Resourceful's HR expertise with OneDigital's broader benefits, retirement and HR technology capabilities to provide a more holistic advisory offering to regional clients.
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January 16, 2020
- Buyer
- Valtas Group
- Target
- SQR2
- Industry
- Professional Services
- Location
- Washington, United States
- Type
- Buyout
Valtas Group acquired executive search firm SQR2 effective January 16, 2020, and the combined business will operate under the Valtas Group name from Bellevue, Washington. The deal expands Valtas Group's executive search and nonprofit advisory capacity in the Pacific Northwest and will be led by Thomas Varga with SQR2 founder Ed Rogan joining the combined organization.
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