Audax Private Equity Acquires Controlling Interest in Centerline Communications

Centerline Communications Acquires NEC Group from Pfingsten Partners

March 17, 2026

Industrial Services

Centerline Communications LLC acquired NEC Group from Pfingsten Partners. The acquisition adds capabilities in mission-critical wireless telecommunications, utility infrastructure, and electric vehicle charging, while expanding Centerline’s geographic footprint in the Northeast. Terms were not disclosed and the transaction closed on March 17, 2026.

Audax Private Equity Acquires Majority Stake in Keystone

January 15, 2026

Consulting

Audax Private Equity has acquired a majority stake in Keystone, purchasing the global technology and advisory services practice from RLH Equity Partners in a recapitalization that closed January 2, 2026. Concurrently, Keystone spun out its Core AI business as an independent B2B AI SaaS company (Keystone.AI) with RLH retaining a minority stake; Jeff Marowits was named CEO and Greg Richards will remain as a senior strategic advisor.

Centerline Communications Acquires Pearson Pelletier Telecom (PPT)

February 14, 2023

Telecommunications

Centerline Communications, a portfolio company of Audax Private Equity, has acquired Pearson Pelletier Telecom (PPT) to expand its Canadian operations and service capabilities. The deal strengthens Centerline's footprint in Quebec and Ontario and adds specialized wireless network and antenna services to support major Canadian carriers.

ettain group Acquires Centerline Partners

December 3, 2020

Professional Services

ettain group, a portfolio company of Alvarez & Marsal Capital, has acquired Centerline Partners, a life-sciences-focused management consulting firm with offices in Beverly, MA and Bridgewater, NJ. The deal expands ettain group's consulting capabilities and strengthens its presence in the life sciences market.

Audax Private Equity Acquires Stonewall Kitchen from Centre Partners

August 1, 2019

Food & Beverage

Audax Private Equity acquired a controlling interest in Stonewall Kitchen, a York, Maine-based premium specialty food producer, from Centre Partners. Audax said it will support Stonewall Kitchen’s growth and buy-and-build strategy while existing management, including CEO John Stiker, remain in place; financial terms were not disclosed.

Wincove and Stone-Goff Recapitalize Centerline Communications and TowerNorth Development

August 18, 2017

Telecommunications

Wincove Private Holdings and Stone-Goff Partners completed a recapitalization investment in Centerline Communications and affiliated TowerNorth Development. Management, led by CEO Josh Delman, will remain a significant owner as the investors provide capital and support to grow the telecom infrastructure and tower development platform.