Helix Sold to Nonantum and Solamere

Technology & Services

Helix, a portfolio company of Stone Arch, sale to Nonantum and Solamere


Helix Traffic Solutions, LLC (“Helix” or the “Company”), a portfolio company of Stone Arch Capital (“Stone Arch”), recently announced its sale to Nonantum Capital Partners (“Nonantum”) and Solamere Capital (“Solamere”). Terms of the transaction have not been disclosed.

Baird served as the exclusive financial advisor to Helix Traffic Solutions, LLC on this transaction.


Helix is a leading provider of traffic management solutions providing services to over 3,400 clients across a broad range of end markets. With a highly experienced, results oriented management team that emphasizes culture, the Company has established a reputation as a market leader and an acquiror of choice. Helix achieved the position as one of the nations premier traffic management providers by offering a comprehensive suite of services including Traffic Control, Equipment Rental and Sales, Sign Install and other services (i.e., Guardrail, Asphalt / Concrete Restoration and Erosion Control). Helix services a variety of customers including Utility, Roadway Infrastructure, Municipal and Commercial clients across the country. Helix is based in Murfreesboro, Tennessee.

Stone Arch makes equity investments in leading private companies. The Stone Arch team has over 100 years of experience investing in and building businesses in a wide variety of industries and markets. Stone Arch pursues niche market leaders that display strong profit margins, consistent profitability and generate high cash flow. Stone Arch was founded in 2003 and is based in Minneapolis, Minnesota.

Nonantum is a Boston-based middle-market private equity firm that was founded in 2018 by a team of experienced private equity and management executives as a spin-out from Charlesbank Capital Partners. Nonantum focuses on investing in family and founder-owned businesses, corporate carve-outs, and complex situations where personal partnership is critical, and opportunities exist for significant equity value creation.

Solamere is a private investment firm focused on private equity and venture fund investing as well as direct investing. Solamere targets opportunities throughout the United States and does not have any stated sector preferences. Solamere was formed in 2008 and is based in Boston, Massachusetts.
Technology & Services

Helix, a portfolio company of Stone Arch, sale to Nonantum and Solamere

August 2021
Helix Traffic Solutions, LLC
M&A - Sellside
Technology & Services
Facility, Industrial, Residential & Environmental Services
Target Geography
North America
Acquiror Geography
North America