PROtect Acquires Airde Mechanical Services

Sterling Investment Partners Acquires PROtect from Spire Capital Partners

November 11, 2024

Industrial Services

Sterling Investment Partners has acquired PROtect, a Wichita-based provider of safety, reliability, compliance and risk-management services, from Spire Capital Partners. PROtect, which employs over 550 people and offers NDT, mechanical integrity, pipeline integrity, environmental and compliance solutions (including proprietary software), will be a Sterling platform to drive further geographic and service expansion; financial terms were not disclosed.

PROtect, LLC (Spire Capital Portfolio Company) Acquires Riccardelli Consulting Services, Inc.

September 2, 2021

Industrial Services

PROtect, LLC, a portfolio company of Spire Capital Partners, has acquired Riccardelli Consulting Services, Inc. (RCS), a Lehi, Utah–based provider of advanced and conventional non-destructive testing focused on pipeline integrity for the midstream oil & gas industry. The bolt‑on acquisition expands PROtect's advanced NDT and pipeline integrity capabilities; RCS owner Sean Riccardelli will join the combined management team. Both companies will retain existing employees and continue operating under their current brands.

Aerial Machine & Tool Acquires Hazard Protection Systems

June 13, 2025

Aerospace & Defense

Aerial Machine & Tool, a portfolio company of Argosy Private Equity, has acquired Hazard Protection Systems (HazPro), a supplier of patented passive fire suppression solutions for military, industrial, and commercial vehicles. The acquisition expands Aerial's mission-critical safety product portfolio and intellectual property, with integration and post-close synergies already underway supported by Argosy's value-acceleration program.

PROtect Acquires Houston Integrity Consultants (HIC)

March 23, 2023

Industrial Services

PROtect, LLC — a Spire Capital portfolio company — has acquired Houston Integrity Consultants, LLC (HIC), a Houston-based specialist in Risk Based Inspection (RBI) services and Inspection Data Management System (IDMS) software. The deal expands PROtect's Mechanical Integrity capabilities by adding HIC's RBI expertise and software to its service offerings while retaining HIC's team and brand through the end of 2023.

Rockbridge Growth Equity Acquires Protect Environmental

October 14, 2021

Environmental Services

Rockbridge Growth Equity has acquired Louisville-based Protect Environmental and will integrate it into its national environmental services platform currently operating as RB Home Services, retiring the RB Home Services name in favor of the Protect Environmental brand. Protect Environmental — a leader in radon and chemical vapor intrusion consulting and mitigation — will serve as the cornerstone of the platform's expanded commercial capabilities and will relocate its headquarters to Louisville, Kentucky, with CEO Kyle Hoylman remaining in leadership.

Proteus Enterprises and Gladstone Investment Acquire Ricardo Defense from Ricardo plc

December 13, 2024

Aerospace & Defense

Proteus Enterprises, together with Gladstone Investment Corporation, acquired Ricardo Defense, Inc., an engineering services and systems integration firm headquartered in Troy, Michigan. The transaction is a divestiture by Ricardo plc; Gladstone provided equity and senior secured debt while Proteus will operate and scale the defense-focused business. Financial terms were not disclosed.