Helix Traffic Solutions Acquires Highway Safety Services

Nonantum Capital Partners Acquires Helix Traffic Solutions

August 17, 2021

Industrial Services

Nonantum Capital Partners, a Boston-based middle-market private equity firm, has acquired Helix Traffic Solutions, a leading U.S. provider of traffic management services, equipment rental, and sign installation. The investment will support Helix’s national expansion strategy and continued roll-up of founder-led traffic service businesses across the United States.

Helix Traffic Solutions Acquires Mels Electric

February 3, 2025

Infrastructure

Helix Traffic Solutions, a portfolio company majority-owned by Nonantum Capital Partners, has acquired Mels Electric of Wilmer, Texas. The add-on expands Helix's traffic safety infrastructure capabilities and strengthens its footprint in the Dallas–Fort Worth market; transaction terms were not disclosed.

RoadSafe Traffic Systems Acquires Highway Supply, LLC

April 6, 2023

Industrial Services

RoadSafe Traffic Systems, Inc. has acquired Highway Supply, LLC, a traffic control products and pavement marking services provider based in Albuquerque, New Mexico. The acquisition — RoadSafe’s ninth since entering a strategic partnership with private equity firms Investcorp and Trilantic North America in 2021 — expands RoadSafe’s geographic footprint and service capabilities in the New Mexico market.

Helix Traffic Solutions Acquires IDAX Data Solutions

September 18, 2025

Data & Analytics

Helix Traffic Solutions has acquired IDAX Data Solutions, a Renton, Washington–based provider of multimodal traffic data and analytics, to expand Helix's transportation analytics and data-driven service offerings. The acquisition integrates IDAX's data-collection and analytics capabilities into Helix's traffic control and work-zone management services to deliver more comprehensive solutions for municipal, state, and private-sector clients.

Harvest Partners Acquires Road Safety Services

December 12, 2023

Industrial Services

Funds managed by Harvest Partners have completed the acquisition of Road Safety Services, Inc. from Parallel49 Equity. Headquartered in Omaha, Nebraska, Road Safety Services provides pavement marking and road-safety services across 15 states from nine facilities; the company's management team, led by CEO Mike Johnson, will remain significant owners and continue to lead the business. Transaction terms were not disclosed.

Road Safety Services Acquires Twin Traffic Marking Corp. and Traffic Zone Services

December 31, 2020

Infrastructure

Road Safety Services, a Parallel49 Equity portfolio company, completed an add-on acquisition of Twin Traffic Marking Corp. and Traffic Zone Services (collectively “Twin Traffic”), expanding its pavement marking and traffic control capabilities. The deal bolsters RSS’s scale and presence in the Central U.S., particularly Kansas and Missouri, and supports continued platform buildout in road safety services.