Coombs-Hopkins

What Coombs-Hopkins does

Coombs-Hopkins is a privately-held manufacturers' representative and distributor of water and wastewater treatment equipment, operating across the western United States since approximately 1985. The company represents more than 50 equipment manufacturers—including Xylem, Suez/Veolia, Alfa Laval, Trojan UV, Gorman-Rupp, Aerzen, Ovivo, and Parkson—selling specified capital equipment and integrated treatment solutions to municipal water and wastewater utilities, with secondary exposure to industrial clients such as food processing plants. The firm is headquartered in Carlsbad, California, and operates staffed regional offices in Denver, Phoenix/Tempe, Salt Lake City/Sandy, Walnut Creek, Seattle, and Portland. Each office is anchored by P.E.-credentialed sales engineers who work directly with municipal engineers, contractors, and plant operators to specify and procure treatment systems, evidenced by named engagements at the Metropolitan Water District of Southern California's Regional Recycled Water Advanced Purification Center, the South Davis WWTP, the City of Oceanside, Turlock, and Chandler, among others.

The business operates on a manufacturer-representation model: Coombs-Hopkins does not develop proprietary treatment technology but earns commissions or markups on equipment specified and sold through its exclusive territorial agreements. Its wholly-owned subsidiary, DC Frost Associates, extends the model into the aftermarket by handling plant sales, OEM equipment rebuilds, replacement parts, and service coordination across the Coombs-Hopkins territory with two dedicated Plant Sales Engineers. Go-to-market is exclusively enterprise field sales—no e-commerce, self-service, or digital channel—with supplemental presence at industry conferences (WEF/AWWA, WEFTEC, WateReuse, CASA, CWEA, PNCWA, Tri-State Seminar).

Revenue mechanics are project-based and quote-driven: each municipal engagement involves equipment specification, competitive bidding, and capital procurement cycles typical of public-sector water infrastructure. Pricing is not publicly disclosed. The company does not report revenue, operates with approximately 20 employees, and shows no identifiable PE or institutional ownership signals. Recent strategic activity has concentrated on geographic expansion (2022 Pacific Northwest launch into Washington and Oregon), incremental line-card growth through new OEM agreements (Gorman-Rupp Pumps Arizona 2022; ClearAS ABNR 2017; ETS Klorigen PFAS), and tactical sales-engineer hiring to deepen regional coverage.

Name

Coombs-Hopkins

Legal name

Coombs-Hopkins

Website

https://coombshopkins.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

Coombs-Hopkins is a Carlsbad, California-based manufacturers' representative and distributor of water and wastewater treatment equipment, representing 50+ equipment OEMs to municipal utilities across the western United States through seven regional offices and an aftermarket subsidiary.

Ownership category

akta.pro rank

Headquarters

HQ city

Carlsbad

HQ country

United States

HQ region

North America

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Equipment Distribution / Manufacturer Representation: Coombs-Hopkins generates revenue by representing and distributing water and wastewater treatment equipment from manufacturer partners to municipal clients. As a manufacturer's representative, the company earns commissions or markups on equipment sales, working with engineers, contractors, and plant operators to specify and procure treatment solutions.
2. Aftermarket Parts and Service (DC Frost Associates): The aftermarket division handles replacement parts, replacement systems, equipment rebuild proposals, evaluations of existing equipment, and coordinating service. DC Frost Associates operates as a wholly-owned subsidiary focused on plant sales and OEM equipment rebuilds.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

Coombs-Hopkins is a manufacturer's representative and distributor that supplies water and wastewater treatment equipment to municipal and industrial clients across the western United States. The company represents more than 50 industry-leading manufacturers and supports clients with equipment specification, procurement, and aftermarket service through its wholly-owned subsidiary DC Frost Associates.

Product overview

Coombs-Hopkins is a water and wastewater treatment equipment distributor representing over 50 industry-leading manufacturers. Rather than a single unified product, the company offers a comprehensive portfolio of complementary water treatment solutions through its manufacturer partners, including aeration systems (Aerzen, Aquarius), filtration equipment (Leopold, Five Star, Trojan UV), biological treatment (ClearAS, Parkson, Kruger), pumping systems (Gorman-Rupp, Flygt), and after-market services via its DC Frost Associates subsidiary. The company serves municipal and industrial water and wastewater treatment clients across the Western United States.

Differentiator

Problem solved

Functional benefit

Products and services

• Water and Wastewater Treatment Equipment Representation and Distribution Distribution and specification of water and wastewater treatment equipment from over 50 manufacturer partners to municipal and industrial clients across the western United States. Includes aeration, filtration, disinfection, biological treatment, pumping, screening, and biosolids processing equipment.
• DC Frost Associates Aftermarket Services Wholly-owned subsidiary handling plant sales, OEM equipment rebuilds, replacement parts, equipment evaluations, and service coordination for manufacturers on both the Coombs-Hopkins and DC Frost line cards across the western United States.

Named customers15 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

15 partnerships are on record, tiered secondary and core.

• Metropolitan Water District of Southern California (MWD)secondaryStrategic or Co-development Partner · 1 October 2019Coombs-Hopkins attended the unveiling of the MWD's Regional Recycled Water Advanced Purification Center in Carson, CA. The facility features SUEZ and Evoqua membrane bioreactors, Trojan UV, and Xylem mixers — all equipment sourced through Coombs-Hopkins manufacturer partners.
• Wasatch Resource Recovery CentersecondaryStrategic or Co-development Partner · 1 May 2019Coombs-Hopkins partnered with Wasatch Resource Recovery Center to provide Suez Monsal equipment for the South Davis WWTP in North Salt Lake City. The Monsal equipment includes waste receiving pre-treatment, advanced digestion pasteurization, and sequential gas mixing technology.
• ClearASsecondaryTechnology or Integration · 1 April 2017ClearAS provides Advanced Biological Nutrient Recovery (ABNR) systems — a chemical-free, biological-based treatment to achieve ultra-low nutrient results. Coombs-Hopkins began representing ClearAS in April 2017.
• Xylem (including Leopold, Sanitaire, Flygt brands)coreTechnology or IntegrationCoombs-Hopkins represents multiple Xylem brands in the municipal water and wastewater space, including Leopold (filter underdrains), Sanitaire (fine bubble aeration, disc diffusers), and Flygt (propeller pumps, submersible mixers). Xylem's Watermark CSR program also demonstrates ongoing community partnership.
• Suez / Veolia Water TechnologiescoreTechnology or IntegrationCoombs-Hopkins represents Suez and Veolia Water Technologies brands including LEAPmbr, ZeeWeed ultrafiltration, Monsal advanced digestion technology, and Kruger products (Actiflo, AnoxKaldnes).
• Alfa LavalcoreTechnology or IntegrationCoombs-Hopkins represents Alfa Laval for belt filter presses, gravity thickeners, centrifuges, and spiral heat exchangers used in sludge thickening and dewatering.
• Trojan Technologies / Trojan UVcoreTechnology or IntegrationCoombs-Hopkins represents Trojan UV for ultraviolet disinfection systems for water, wastewater, recycled water and potable reuse applications.
• Gorman-Rupp PumpscoreChannel Partner/ Reseller/ DistributorCoombs-Hopkins is the authorized distributor of Gorman-Rupp Pumps in Arizona, providing high-performance centrifugal, submersible, rotary gear and diaphragm pumps for municipal water and wastewater markets.
• AerzencoreTechnology or IntegrationCoombs-Hopkins represents Aerzen for high-speed turbo blowers, Delta Hybrid rotary lobe blowers, and positive displacement blowers for water and wastewater applications.
• OvivocoreTechnology or IntegrationCoombs-Hopkins represents Ovivo for mechanical, biological, and chemical treatment processes including headworks screens, oxidation ditches, clarifiers, DAF thickening, aerobic and anaerobic digestion, and LM mixers.
• Parkson CorporationcoreTechnology or IntegrationCoombs-Hopkins represents Parkson Corporation for headworks screening, aeration, biological treatment, clarification, filtration, and biosolids thickening solutions including Aqua Caiman, DynaSand filters, and Biolac systems.
• Ishigaki USAsecondaryTechnology or IntegrationCoombs-Hopkins represents Ishigaki USA for fully automatic continuous screw presses and filter presses for solids/liquid separation in water and wastewater treatment. California's first Ishigaki Screw Press was installed through Coombs-Hopkins.
• Five Star FiltrationsecondaryTechnology or IntegrationCoombs-Hopkins represents Five Star Filtration for cloth media disk filters. The company facilitated the first Five Star Disk Filter order in California for the City of Oceanside's San Luis Rey WRF project.
• DC Frost AssociatescoreTechnology or IntegrationDC Frost Associates, Inc. is a wholly-owned subsidiary of Coombs-Hopkins Company. It handles plant sales and OEM equipment rebuilds and service for the manufacturers on both the Coombs-Hopkins and DC Frost line cards, with two dedicated Plant Sales Engineers covering the territory.
• Additional Manufacturers (50+)coreTechnology or IntegrationCoombs-Hopkins represents over 50 manufacturers in total, including: Aerator Solutions, Algaewheel, Anua, Aquarius, AWC Water Solutions, Biorem, Brentwood/Polychem, Continental Blower, CST Covers, Custom Conveyors (Schwing Bioset), Daniel Company, E&I Corporation, Electrolytic Technologies Systems (ETS), Enduro, Entex Technologies, EnviroMix, Epic International, Fournier, Hydro International, Ixom, Komline-Sanderson, KWS Manufacturing, Legacy Environmental, Lemna Technologies, Limitorque, Orege, Philadelphia Mixing Solutions, Rexa, RP Adams, SavéCo North America (formerly Enviro-Care), Schwing Bioset, SteelFab, Swaby Lobeline, Thermal Process Systems, Tomorrow Water, Tonka Water, Velodyne, Vulcan, Whipps, and others.

Scale indicators3 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Carollo Engineers: Carollo Engineers is a large US engineering consultancy focused exclusively on water and wastewater — it designs municipal treatment plants and specifies equipment, often selecting from the same OEMs Coombs-Hopkins represents. Comparable as a downstream water-treatment services firm addressing the same municipal buyer with similar project economics.
• Brown and Caldwell: Brown and Caldwell is an environmental engineering firm specializing in water, wastewater, and stormwater infrastructure for municipalities. Like Coombs-Hopkins, it operates across the western US and is embedded with municipal utilities as a trusted advisor on equipment selection and capital project delivery.
• Black & Veatch: Black & Veatch is a global infrastructure EPC and engineering firm with a major water practice that designs and procures municipal water and wastewater treatment systems. Comparable as a much larger organization serving the same municipal customer base, often competing on the specification of the same equipment OEMs.
• CDM Smith: CDM Smith is a major engineering, construction, and operations firm with a significant water/wastewater practice serving municipal utilities across the US. It engages in similar equipment specification and procurement activities targeting the same customer segment as Coombs-Hopkins.
• Hazen and Sawyer: Hazen and Sawyer is a water-focused environmental engineering firm providing planning, design, and construction management for municipal water and wastewater systems in the US. Directly comparable to Coombs-Hopkins on customer base and project-type alignment, though operating at a much larger scale.
• HDR Inc. HDR is a large multi-disciplinary engineering firm with a substantial water business unit that designs municipal treatment facilities and specifies equipment. Comparable on customer base (US municipal utilities) and on the upstream equipment specification role, but operates at significantly larger scale and geographic breadth.
• Jacobs Solutions: Jacobs Solutions is a global professional services firm with a major water and environmental practice serving municipal and industrial clients across the US. Comparable as a much larger firm engaged in water infrastructure design, procurement, and program management for the same buyer segment.

Others

• Xylem Inc. Xylem is a Fortune 500 water technology company and one of Coombs-Hopkins' largest represented principals (Leopold, Sanitaire, Flygt brands). Not a competitor but a key supplier whose commercial strategy (direct sales vs. rep channel) directly shapes Coombs-Hopkins' economics.
• Veolia Water Technologies: Veolia Water Technologies is a major global water treatment equipment manufacturer and another of Coombs-Hopkins' core principals (Kruger, LEAPmbr, ZeeWeed brands). Like Xylem, it is an upstream supplier whose channel decisions materially affect Coombs-Hopkins' business model.

Emerging players

• Aqua-Aerobic Systems: Aqua-Aerobic Systems is a US manufacturer of water and wastewater treatment equipment (cloth media filters, aeration, membrane bioreactors) competing with several of Coombs-Hopkins' represented principals. Comparable as a smaller-scale equipment OEM that competes for the same municipal specifications in the same geographies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Coombs-Hopkins