34 Environmental Engineering companies in United States

34 Environmental Engineering companies in United States with 53 founders and decision-makers, led by Cambridge. 32 verified founder emails. Updated 2026-10-03.

Key findings

• FindMeMail tracks 34 Environmental Engineering companies in United States, with 53 founders and decision-makers listed.
• Cambridge is the top city, with 2 of them (6%), followed by San Francisco (2).
• The most common team size is 1-10 employees (97% of companies).
• 3 (9%) were founded in the last three years.
• 18 have a recorded funding round; the most common is Seed (6).
• 21 companies (62%) have at least one verified founder email, 32 verified emails in total.

Breakdown

Top cities

• Cambridge: 2 (6%)
• San Francisco: 2 (6%)
• San Diego: 2 (6%)
• Fremont: 2 (6%)
• New York: 2 (6%)
• Brookhaven: 1 (3%)
• Anchorage: 1 (3%)
• St Louis: 1 (3%)

Team size (employees)

• 1-10: 33 (97%)
• 1001-5000: 1 (3%)

Latest funding round

• Seed: 6 (18%)
• Grant: 4 (12%)
• Venture - Series Unknown: 3 (9%)
• Non-equity Assistance: 2 (6%)
• Pre-Seed: 2 (6%)
• Convertible Note: 1 (3%)

Founded (last 10 years)

• 2017: 1 (3%)
• 2018: 3 (9%)
• 2019: 1 (3%)
• 2020: 4 (12%)
• 2021: 2 (6%)
• 2022: 2 (6%)
• 2025: 2 (6%)
• 2026: 1 (3%)

Recently added Environmental Engineering companies in United States

• DropCast — Denver, United States: Real-time water resource monitoring and risk intelligence for every reservoir, stream, and aquifer in the US.
• Confluence Hydro — Bethesda, United States: Confluence Hydro is a renewable-energy company that modernizes and operates hydroelectric plants.
• MassGain — Fremont, United States: We make biodegradable stretch wrap with performance and cost parity to traditional plastic wrap.
• Epperson Environmental Group — Round Rock, United States: Epperson Environmental Group offers environmental risk reduction and consulting services.
• Travis Peterson Environmental Consulting — Anchorage, United States: Travis Peterson Environmental Consulting offers spill prevention, contaminated site remediation, NEPA, and regulatory compliance services.
• SOS Carbon — Cambridge, United States: SOS Carbon offers cost-effective sargassum seaweed management solutions including collection devices and barriers, aiming to mitigate environmental impacts whi…
• Dune Doctors — Pensacola, United States: Dune Doctors is a coastal erosion control firm that offers coastal restoration, beroset designs, consulting, and construction services.
• Otero Engineering — Tampa, United States: Otero Engineering is a civil and environmental engineering firm that specializes in design and construction services.
• Environmental Management Systems — Milwaukie, United States: Environmental Management Systems offers consulting services in septic system design, geohazard planning, and erosion control.
• Custom Earth Promos — Delray Beach, United States: Custom Earth Promos is an environmental services company that specializes in the manufacture of eco friendly green goods.
• Zenneck Power — Dallas, United States: Zenneck Power is an It operates in the energy industry.
• Nature's Keeper — South Lake Tahoe, United States: Nature's Keeper environmentally friendly outdoor gear for skiers and snowboarders.
• Kai Pono Solutions — San Diego, United States: Kai Pono Solutions integrates sustainable trash capture and stormwater filtration processes in cities and communities.
• Climatescape — Walnut, United States: Climatescape operates a community platform helping people find opportunities to dive into climate through jobs, community, and investment.
• Coastal Innovations — New York, United States: Coastal Innovations is an erosion control and flood protection solutions provider.
• New England MedWaste Management — Middleton, United States: New England MedWaste Management is an Environmental Services company.
• ProsumerGrid — Brookhaven, United States: ProsumerGrid are developing a set of software solutions that enable simulation, planning.
• Reterra — Houston, United States: Reterra recycles and reconditions waste products and converts them into valuable raw materials.
• Preservaland Inc — San Francisco, United States: “Preservaland: Empowering Sustainable Land Use with Innovative Financial Solutions for Environmental Conservation and Restoration.”
• Viroment — Minneapolis, United States: Viroment builds high-tech agricultural facilities to solve the challenges of waste sludge disposal.
• HyperKelp — San Diego, United States: HyperKelp builds hosted payload buoys that provide data access to the ocean's surface.
• Power Knot — Fremont, United States: Power Knot is design, develop, and manufacture waste solutions products.
• Salute Safety — New York, United States: Salute is a mobile-first application enabling on-site data capture via tablets and smartphones.
• Whitetail Disposal — Perkiomenville, United States: Whitetail Disposal is a waste management company providing residential and commercial waste collection services.
• Commonwealth Fusion Systems — Cambridge, United States: Commonwealth Fusion Systems designs and develops commercial fusion energy systems to produce clean energy.
• Thiozen — Pasadena, United States: Thiozen develops novel hydrogen gas production technology designed to reduce greenhouse gases.
• Kairospace Technologies — Las Vegas, United States: Kairospace Technologies is a strategic innovation hub that optimizes industrial water processes through the use of innovative technologies and creative science…
• GRAIN Ecosystem — Quincy, United States: GRAIN Ecosystem is a start-up that addresses global warming and accelerates decarbonization.
• Renoster Systems — Austin, United States: Renoster Systems is a climate technology company focused on bringing deep transparency to nature based projects worldwide.
• Muuse — San Francisco, United States: Muuse aims to eliminate single-use plastics by introducing a deposit system to its products supported by a tech enabled system.

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Frequently asked questions

How many Environmental Engineering companies in United States are there?

FindMeMail currently lists 34 Environmental Engineering companies in United States with at least one founder or decision-maker identified. The count updates daily as new companies are added.

Where are most Environmental Engineering companies in United States based?

Cambridge (2), San Francisco (2), San Diego (2).

How do I contact founders of Environmental Engineering companies in United States?

32 verified founder emails are available for these companies on FindMeMail. Create a free account to get 50 free reveals, then buy one-time credit packs from $12.

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• Seed-stage startups in United States (1,905)
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• E-Commerce companies in United States (1,545)
• SaaS companies in United States (1,304)
• Pre-seed startups in United States (1,096)
• Financial Services companies in United States (1,062)
• Manufacturing companies in United States (959)
• Consulting companies in United States (949)
• Internet companies in United States (824)

Methodology: counts include companies in the FindMeMail database with at least one identified founder or decision-maker. Data refreshes automatically as new companies are added.