Advent International has agreed to invest in Atwell, a Southfield, Michigan-based firm specializing in engineering, consulting, and construction services for critical infrastructure. The transaction, set to finalize in Q2 2026, includes Atwell’s expertise in planning, environmental consulting, GIS mapping, and land entitlement solutions. Matthew Bissett, CEO of Atwell since its 1905 founding, leads a company that serves clients across transportation, energy, and utilities sectors.

Atwell’s services span land acquisition, surveying, and construction management, positioning it as a key player in infrastructure development. Advent’s investment underscores growing interest in firms addressing complex regulatory and logistical challenges in public and private projects. The deal value remains undisclosed, but Atwell’s established reputation and niche focus likely attracted Advent’s attention amid sector consolidation.

This move aligns with Advent’s strategy to back specialized firms driving innovation in infrastructure. Atwell’s integration of technology, such as GIS and environmental analytics, complements Advent’s portfolio of high-growth assets. For investors, the deal signals confidence in demand for sustainable and efficient infrastructure solutions amid aging systems and climate resilience priorities.

Advent’s involvement may accelerate Atwell’s expansion, leveraging Advent’s global network to scale operations. However, the firm’s long-standing local roots and client relationships remain central to its identity. As infrastructure spending ramps up, partnerships like this could redefine how firms balance tradition with modernization in a competitive market.