Engineering Services Buyers & Acquisitions in Missouri

Tracked deals

13

13 tracked deals across 2021-2025.

Buyer mix

Mixed buyer set

10 strategic · 7 pe

Top trend

Volume peaked in 2025

4 tracked deals announced in 2025.

Buyer Snapshot

Top Buyers

Illustrative buyers pulled from tracked transactions on this page. This table is capped and intentionally non-exhaustive.

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Buyer # Deals Focus Type
Armada Analytics 1 Provider of end-to-end commercial real estate due diligen... Strategic
Bernhard Capital Partners 1 Services- and infrastructure-focused private equity firm ... PE
CIVC Partners, L.P. 1 Chicago-based middle-market private equity firm focused o... PE
Grace Hebert Curtis Architects 1 Architecture, engineering and consulting (AEC) firm opera... Strategic (PE-backed)
GrayMatter 1 Technology and solutions integration company focused on i... Strategic (PE-backed)
Hamilton Robinson Capital Partners 1 Lower-middle market private equity firm focused on contro... PE
Integral Group 1 Global engineering and sustainability consulting firm foc... Strategic
Olsson 1 Engineering and design firm providing integrated engineer... Strategic
Pavion 1 Provider of integrated systems for fire, safety, security... Strategic (PE-backed)
Providence Equity Partners 1 Specialist private equity firm focused on growth-oriented... PE

Acquisition Volume in Engineering Services in Missouri by Year

Last 5 years

Acquisition volume by year Annual acquisition counts for the last 5 years for Engineering Services Buyers & Acquisitions in Missouri. 2 2021 2 2022 3 2023 2 2024 4 2025

Supporting Data

Recent Transactions

  • Buyer
    RailPros
    Target
    Design Nine, Inc.
    Type
    Buyout

    Irving, Texas-based RailPros has acquired St. Louis-based railroad engineering firm Design Nine, Inc., expanding RailPros' engineering capabilities and regional coverage in the Midwest. The acquisition adds Design Nine's site development, bridge rehabilitation, surveying, drafting and inspection services to RailPros' North American rail engineering and services platform.

  • Buyer
    SJE, Inc.
    Target
    LangeTech Inc.
    Type
    Buyout

    SJE, Inc. has acquired LangeTech Inc., a system integrator and engineering services provider for the automation industry, to grow its Engineered Control Solutions (ECS) business. LangeTech, founded in 2002 and headquartered in Chesterfield, Missouri, brings system integration, SCADA, control systems and aftermarket services—strengthening SJE's capabilities and U.S. footprint. Terms were not disclosed.

  • Buyer
    Olsson
    Target
    The Process Group (TPG)
    Type
    Buyout

    Olsson, an engineering and design firm, acquired The Process Group (TPG), a chemical engineering and process/mechanical design firm based in Chesterfield, Missouri. The 15 TPG employees will join Olsson, with most based in the St. Louis metro area. The financial terms of the acquisition were not disclosed.

  • Buyer
    UES
    Target
    Marino Engineering Associates
    Type
    Buyout

    UES, a national geotechnical and environmental engineering firm based in Orlando, Florida, has acquired Marino Engineering Associates (MEA) of St. Louis, Missouri. The acquisition adds MEA's 40+ years of subsidence, mine stabilization and geoforensic expertise to UES's service offerings and supports capability expansion and growth opportunities for MEA staff.

  • Buyer
    Thompson Street Capital Partners
    Target
    ATIS

    Thompson Street Capital Partners (TSCP) has made a growth investment in ATIS, a St. Louis–headquartered provider of elevator and escalator safety inspections, consulting, and managed services. Terms were not disclosed; TSCP said the capital will support expansion of ATIS’ service offerings, sales and marketing, geographic growth, and strategic add-on acquisitions.

  • Buyer
    Grace Hebert Curtis Architects, Bernhard Capital Partners
    Target
    Hastings+Chivetta Architects
    Type
    Addon

    Grace Hebert Curtis Architects (GHC), a Bernhard Capital Partners-backed AEC platform company, has made an investment in Hastings+Chivetta Architects (H+C), a St. Louis-based architecture firm focused on the education market. Financial terms were not disclosed; the deal expands GHC's higher-education and K-12 capabilities and Midwest footprint as part of its AEC platform build-out.

  • Buyer
    Providence Equity Partners
    Target
    Populous Holdings, Inc.

    Providence Equity Partners has made a strategic minority investment in Populous Holdings, a global architectural and design firm specializing in sports and entertainment venues. The capital will support Populous’ continued growth, expansion of service offerings and geographic reach while existing leadership, including Founder and Global Chair Earl Santee, remains in place.

  • Buyer
    GrayMatter, Hamilton Robinson Capital Partners
    Target
    Automation & Control Concepts (ACC)
    Type
    Addon

    GrayMatter, a portfolio company of Hamilton Robinson Capital Partners, has acquired Automation & Control Concepts (ACC), a St. Louis-based systems integrator. The add-on strengthens GrayMatter's industrial intelligence platform by adding ACC's engineering capabilities in industrial controls, MES data collection and HMI/SCADA design and expands its presence in food & beverage and manufacturing end markets.

  • Buyer
    Pavion, Wind Point Partners
    Target
    Short Circuit Electronics, Inc.
    Type
    Addon

    Pavion, a Wind Point Partners-backed systems integrator, has acquired Short Circuit Electronics, Inc., a Lee's Summit, Missouri-based provider of video security installation, repair, refurbishment and field support. The add-on expands Pavion's security business unit capabilities and North American service footprint, and is Pavion's eleventh acquisition since partnering with Wind Point.

  • Buyer
    Armada Analytics
    Target
    f3 Inc.
    Type
    Buyout

    Armada Analytics, a Greenville, South Carolina–based commercial real estate services provider, has acquired f3 Inc., an engineering and environmental due diligence firm based in St. Louis, Missouri. The acquisition expands Armada's due diligence capabilities by adding f3's engineering and environmental site assessment expertise, enabling a single-vendor offering for property acquisition and financing clients.

  • Buyer
    Integral Group, Ross & Baruzzini
    Target
    Introba
    Type
    Buyout

    Integral Group and Ross & Baruzzini are combining under the new brand Introba to create a global building engineering and consulting firm. The unified organization will have over 1,100 employees across 31 offices in the United States, Canada, the United Kingdom, Serbia, and Australia to expand capabilities in sustainable, resilient engineering and technology-enabled consulting.

  • Buyer
    CIVC Partners, L.P.
    Target
    YOUNG & Associates
    Seller
    Ray Young, Linda Young, Existing YOUNG management team

    Chicago-based private equity firm CIVC Partners invested in YOUNG & Associates, partnering with founders Ray and Linda Young and the existing management team. The investment will support YOUNG's expansion of service offerings, accelerate organic growth and enable strategic acquisitions while management retains a significant ownership stake.

  • Buyer
    Sentinel Capital Partners
    Target
    TranSystems

    Sentinel Capital Partners completed a recapitalization of TranSystems, a U.S.-based provider of engineering, architectural, and design consulting solutions for transportation infrastructure. The transaction will support TranSystems' growth strategy — including organic expansion and acquisitive opportunities — while current CEO Richard Morsches remains in place; terms were not disclosed.

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