EnergySolutions Acquires Substantially All Assets of Williams Industrial Services Group for $60M

Energy Capital Partners (ECP) to Re-acquire EnergySolutions from TriArtisan Capital Advisors

April 6, 2026

Energy

Energy Capital Partners (ECP) announced a definitive agreement to acquire EnergySolutions, a nuclear lifecycle services provider, from TriArtisan Capital Advisors. The deal is expected to close in 2026 and is subject to customary regulatory approvals. Financial terms were not disclosed in the main announcement.

Wynnchurch Capital Acquires Majority Stake in Industrial Service Solutions

December 5, 2022

Industrial Services

Wynnchurch Capital has acquired a majority ownership in Industrial Service Solutions (ISS) from Edgewater Funds and JZ Capital Partners, with Edgewater and JZ retaining minority stakes. The recapitalization will support ISS's continued organic growth and acquisitive expansion of its national industrial MRO platform headquartered in Houston, Texas.

TriArtisan Capital Advisors Acquires Majority Stake in EnergySolutions

May 16, 2022

Energy

TriArtisan Capital Advisors, an existing minority investor, acquired the remaining majority ownership interest in EnergySolutions from Energy Capital Partners. The transaction, which closed in May 2022, positions TriArtisan to provide long-term ownership stability and support EnergySolutions' expansion across nuclear utility, commercial and government waste management and decommissioning markets.

Williams Acquires Sequent Energy Management from Southern Company Gas

July 1, 2021

Oil & Gas

Williams has completed its acquisition of Sequent Energy Management, L.P. and Sequent Energy Canada, Corp. from Southern Company Gas. The deal expands Williams' natural gas pipeline and storage optimization and marketing capabilities, increasing its gas pipeline marketing footprint to over 8 Bcf/d and providing greater North American market coverage.

Energy Services of America Acquires WV Pipeline, Inc.

December 16, 2020

Industrial Services

Energy Services of America Corporation formed a wholly owned subsidiary, West Virginia Pipeline Acquisition Company, and entered an asset purchase agreement to acquire substantially all assets of WV Pipeline, Inc. for $3.5 million cash plus a $3.0 million seller note; the transaction was expected to close December 31, 2020. The acquisition expands Energy Services' capabilities and geographic presence in gas and water distribution utility services in southern West Virginia, and WV Pipeline's leadership (David and Daniel Bolton) will remain with the business.

Industrial Service Solutions Acquires Five Regional Industrial Service Companies

February 1, 2016

Industrial Services

Industrial Service Solutions, a portfolio company of Edgewater Growth Capital, acquired five regional industrial service businesses — Midwest Valve Parts Supply Co., Cajun Valve Services, All-Pump & Equip. Co., Service Equipment & Repair Company, and Plant-N-Power Services — to expand its field service, repair and parts capabilities. The deals augment ISS’s national platform by adding products, technical personnel, physical assets and new geographies to support industrial and manufacturing customers across North America.