Egis Acquires RockSol Consulting Group

EIS Holdings Acquires Eagle Environmental Consulting

October 27, 2022

Environmental Services

EIS Holdings, LLC acquired Eagle Environmental Consulting, Inc., a Wheat Ridge, Colorado-based environmental consulting firm, expanding EIS’ remediation and environmental services footprint into the Northwest (Colorado and New Mexico). The deal is EIS’ second strategic acquisition in 2022 as the company continues building a national environmental remediation and infrastructure platform.

Egis Merges with Lochner to Expand U.S. Footprint

August 4, 2025

Engineering Services

Global engineering and consulting firm Egis has merged with U.S.-based infrastructure firm Lochner, positioning Lochner as the cornerstone of Egis' U.S. expansion. The combined organization brings together Lochner’s more than 1,100 professionals and Egis’ U.S. team to pursue organic and acquisitive growth across transportation, water, energy, and environmental markets.

EIS Holdings Acquires Tierra Consulting Group

May 20, 2025

Environmental Services

EIS Holdings, LLC has acquired Tierra Consulting Group, LLC, a Pompano Beach, Florida–based environmental consulting and groundwater treatment specialist. The deal expands EIS's presence in the Southeast and adds high-volume groundwater treatment, dewatering, subsurface remediation, surveying and mapping capabilities to its nationwide environmental and infrastructure services platform.

GEI Consultants Acquires Lithos Engineering

September 20, 2023

Engineering Services

GEI Consultants has acquired Colorado-based Lithos Engineering, a 27-person firm specializing in tunnel, trenchless, geotechnical, and geological engineering. The acquisition expands GEI's tunneling and trenchless capabilities and adds specialized expertise to support water and infrastructure projects across the U.S.

Western States Reclamation Acquires Ecological Resource Consultants

May 2, 2023

Environmental Services

Western States Reclamation LLC (a portfolio company of Strength Capital Partners) has acquired Ecological Resource Consultants, Inc., a Lakewood, Colorado-based engineering and ecological science firm focused on water-resource and mining-related projects. The acquisition is an add-on to WSR intended to expand its geographic reach and service offering across environmental and water-resources projects in the Western United States and globally for mining clients.

Granicus Acquires Rock Solid Technologies

October 13, 2022

Government & Public Sector

Granicus, a Denver-based provider of cloud-delivered GovTech solutions, has acquired Rock Solid Technologies, a citizen-engagement SaaS provider with offices in San Juan, Puerto Rico and Dallas, Texas. The deal—completed in October 2022 with Strattam Capital selling Rock Solid—expands Granicus' meeting, 311 service request, and citizen engagement capabilities and broadens its footprint in Puerto Rico and Latin America.