Industrial Services Acquisitions in New Hampshire
New Hampshire Industrial Services M&A Themes
Mergers and acquisitions in Industrial Services across New Hampshire span several recurring deal themes, from service providers expanding regionally to automation and environmental solutions bolstering localized capabilities.
Recent transactions include investments in commercial HVAC and refrigeration service (Capstone Mechanical via NMS Capital), factory automation systems integration (NeoMatrix via ONDEX Automation), and erosion and sediment control products (US Silt & Site Supply via MKB Company). The page also highlights platform-building approaches in adjacent industrial services, including distribution of metals products and fire/life-safety add-ons.
Across the covered years, many buyers are private equity-backed partners and roll-up oriented operators, with targets often anchored in New Hampshire communities—such as Portsmouth, Hooksett, Hudson, and Peterborough—while strategic objectives emphasize expanded footprint, additional capabilities, and stronger service coverage in the Northeast.
What Stands Out
- Private equity buyers show up repeatedly, including NMS Capital, ONDEX Automation, Arsenal Capital Partners, Salt Creek Capital, Envest Capital Partners, AI Fire, and MKB Company.
- Deal activity clusters around practical industrial services and solutions: HVAC & refrigeration service, factory automation (SCADA/MES and digital transformation), and erosion/sediment control.
- Platform and add-on strategies are common—e.g., regional expansion for Emerson-style service coverage (HVAC), and capability expansion for automation and life-safety.
- New Hampshire-based targets are frequently described as supporting ongoing local operations (for example, continued operation at a Bow, NH facility; local staffing retained during transitions).
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February 9, 2026
- Buyer
- MKB Company
- Target
- US Silt & Site Supply, US Silt
- Industry
- Industrial Services
- Location
- New Hampshire, United States
- Type
- Addon
Align Capital Partners’ environmental control platform, MKB Company, acquired US Silt & Site Supply, a manufacturer and distributor of erosion and sediment control products. The deal expands MKB’s Northeast footprint and strengthens localized service for erosion control customers, with the Bow, New Hampshire facility continuing to operate as part of the MKB family.
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May 6, 2025
- Buyer
- NMS Capital
- Target
- Capstone Mechanical, LLC
- Seller
- Capstone Mechanical management
- Industry
- Industrial Services
- Location
- New Hampshire, United States
- Type
- Recapitalization
NMS Capital has recapitalized Capstone Mechanical, a Portsmouth, New Hampshire-based commercial HVAC and refrigeration service provider. The private equity partnership will support Capstone's organic growth and M&A strategy to expand its footprint and capabilities across the Eastern United States; terms were not disclosed.
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April 17, 2025
- Buyer
- ONDEX Automation
- Target
- NeoMatrix
- Industry
- Industrial Services
- Location
- New Hampshire, United States
- Type
- Addon
Chicago-based ONDEX Automation has acquired NeoMatrix, a software-focused factory automation systems integrator with offices in Andover, MA; Portsmouth, NH; and Colorado Springs, CO. The acquisition expands ONDEX's capabilities into SCADA, MES and digital transformation solutions and broadens service offerings (including UL508A-certified panels and electrical installation) for its manufacturing customers across pharmaceuticals, semiconductors and food & beverage.
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- Buyer
- Arsenal Capital Partners
- Target
- Innovative Products & Equipment, Inc.
- Industry
- Industrial Services
- Location
- New Hampshire, United States
- Type
- Addon
Arsenal Capital Partners has acquired Innovative Products & Equipment and will combine it with portfolio company Eckhart to build a leading automation solutions provider serving medical device and life sciences customers. Terms were not disclosed; Innovative is headquartered in Hudson, New Hampshire and will expand Eckhart's Factory of the Future and advanced automation capabilities.
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February 15, 2022
- Buyer
- Salt Creek Capital
- Target
- All Metals Industries, Inc.
- Seller
- Terry W. Robinson
- Industry
- Industrial Services
- Location
- New Hampshire, United States
- Type
- Buyout
Salt Creek Capital has acquired All Metals Industries, Inc. (AMI), a Belmont, New Hampshire-based distributor of carbon, aluminum, stainless and coated sheet/coil products serving customers across the Northeast U.S. Salt Creek is partnering with AMI management (CEO Heidi Paiva and President Paul Koza) and purchased the company from owner Terry W. Robinson, intending to build AMI as a platform for future growth and expansion.
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December 15, 2021
- Buyer
- Alta Equipment Group Inc.
- Target
- Ambrose Equipment, LLC
- Industry
- Industrial Services
- Location
- New Hampshire, United States
- Type
- Buyout
Alta Equipment Group Inc. has entered into a definitive agreement to acquire the assets of Ambrose Equipment, LLC, a family-owned equipment distributor and LeeBoy asphalt equipment dealer based in Hooksett, New Hampshire. The acquisition expands Alta's footprint to 39 locations across 10 states; Ambrose generated approximately $35 million of revenue and $3.1 million of adjusted EBITDA on a trailing-twelve-month basis. The asset purchase is expected to close before year-end, with terms to be disclosed upon closing.
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January 25, 2021
- Buyer
- Envest Capital Partners
- Target
- Bell & Williams Associates
- Industry
- Industrial Services
- Location
- New Hampshire, United States
- Type
- Buyout
Envest Capital Partners has acquired Bell & Williams Associates, a Windham, New Hampshire-based provider of repossession, collection, remarketing, and skip-tracing services. The transaction closed December 31, 2020; financial terms and seller details were not disclosed.
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- Buyer
- AI Fire, Audax Private Equity
- Target
- Facility Solutions, LLC (Tri State Fire Protection)
- Industry
- Industrial Services
- Location
- New Hampshire, United States
- Type
- Addon
AI Fire acquired Facility Solutions, LLC — the parent company of Tri State Fire Protection, Tri State Hood & Duct and O'Connell Fire Protection — to expand its New England footprint and capabilities in fire and life-safety services. The deal is an add-on to AI Fire's growing national self-perform fire protection platform (AI Fire was PE-backed at the time).
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April 1, 2015
- Buyer
- East Range Partners
- Target
- Pure Flow, Inc.
- Seller
- Charles "Skip" Iltis
- Industry
- Industrial Services
- Location
- New Hampshire, United States
- Type
- Buyout
East Range Partners, a Cambridge, Massachusetts-based investment group led by Tyler Hogan and Michael Donovan, has acquired Pure Flow, Inc., a Peterborough, New Hampshire-based ultra-pure water purification company. Founder Charles “Skip” Iltis will remain involved during a transition while East Range retains the existing staff and management will continue operations locally.
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Frequently Asked Questions
Which industrial services deal types are most common in New Hampshire?
The covered deals emphasize industrial services tied to HVAC & refrigeration, factory automation systems integration, erosion and sediment control products, metals distribution, and fire/life-safety services.
Are New Hampshire targets typically kept operating locally after acquisition?
In multiple transactions, the materials describe continued local operations or ongoing facility use—such as New Hampshire offices/facilities continuing as part of the acquired platform or during transition periods.
Which buyers appear most often across these New Hampshire acquisitions?
Recurring buyers include AI Fire, Audax Private Equity, MKB Company, Salt Creek Capital, Envest Capital Partners, Arsenal Capital Partners, ONDEX Automation, and NMS Capital.
Do the deals include automation and digital transformation?
Yes. ONDEX Automation’s acquisition of NeoMatrix is described as expanding into SCADA, MES, and digital transformation solutions, and Arsenal Capital Partners is described as building an automation solutions provider focused on medical device and life sciences customers.