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Top Greentech Companies in Denver & Boulder, CO (114)

Halter
Greentech • Hardware • Internet of Things • Machine Learning • Software • Business Intelligence • Agriculture
2 Offices
350 Employees
32 Benefits Hiring Now
Halter is on a mission to unlock more productive and sustainable farming and ranching.

We bridge deep tech into farming and ranching. Halter enables farmers and ranchers to remotely shift, virtually fence and proactively monitor their cows’ health and behavior. Can you imagine watching 500 cows or cattle walk calmly towards the milking shed or their next break? No quad bikes, no dogs, no fences. Just a herd of cows walking at their own...

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Halter

Halter's Top Stability & Growth Strengths

Strong Revenue Growth: Revenue at the New Zealand entity rose to NZ$98.1m for the nine months to December 2025 versus NZ$71m for the prior 12-month period, and farms served reportedly increased from 2,000 to 3,500 alongside collars deployed growing from 500k to 1.5m. Feedback suggests headcount more than doubled within 12 months, indicating scaling operations to support demand.

Investor Backing & Capital Strength: A US$220 million Series E at a reported US$2 billion valuation and a prior US$1 billion valuation signal substantial capacity to fund expansion, product development, and market entry. Feedback suggests plans to hire 200+ roles and expand into the UK and Ireland, supported by this capital base.

Market Expansion: Operations reportedly extended rapidly in the United States with approximately 1,000 ranch customers and activity in more than half of US states. Feedback suggests international expansion plans into Europe and increased satellite-collar deployments are opening new, harder-to-serve markets.

KPA
Automotive • Greentech • HR Tech • Sales • Software
Westminster
405 Employees
55 Benefits Hiring Now
KPA helps organizations keep people safe, protect their business, and elevate compliance.

KPA solutions help clients identify, remedy, and prevent workplace safety and compliance problems across their entire enterprise. The combination of KPA’s easy-to-use software platforms, consulting services, and award-winning training content helps organizations minimize risk so they can focus on what’s important—their core business. For nearly 40 years, KPA has helped 10,000+ clients achieve regulatory compliance, protect their business, and keep...

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KPA

KPA's Top Stability & Growth Strengths

Strong Market Position & Advantage: KPA reports serving 40 of the top 50 U.S. dealership groups and more than 15,000 client locations, indicating deep penetration in its automotive niche. The 2026 refocus on automotive is intended to deliver more specialized products and dedicated support for these customers.

Product Line Growth: Recent launches include AI-powered lead-response audits, performance dashboards, advertising archives, and new certification programs. Acquisitions such as ComplyNet, AnchoRock, and iScout have broadened capabilities across dealership compliance and construction safety.

Investor Backing & Capital Strength: Providence Equity Partners lists KPA as an active portfolio company and documents the 2026 business separation. Private-equity ownership provides resources for continued investment and restructuring, even though it does not itself prove revenue growth.

Perennial
Artificial Intelligence • Cloud • Greentech • Machine Learning • Agriculture
Boulder
30 Employees
37 Benefits
Perennial is unlocking soil as the world's largest carbon sink. Harness earth to heal the planet.

Perennial is building the world’s leading verification platform for soil-based carbon removal. Our vision is to unlock agricultural soils as the world’s largest carbon sink. To do that, we are building trusted standards, tools, and technologies to help verify climate-smart agriculture. Perennial uses the world’s most advanced remote measurement technology for soil carbon sequestration and emissions. We fuse machine learning, ground...

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Perennial
Toxnot
Cloud • Enterprise Web • Greentech • Social Impact
Fort Collins
12 Employees
20 Benefits
SaaS for sustainability teams

Toxnot is a SaaS company that’s helping manufacturers make safer and more sustainable products. We have a dynamic team in place making an impact on sustainability by streamlining chemical transparency, product compliance, and supply chain management. We work with major companies like Google and Kohler to digitize their supply chains.

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Toxnot
Sun Number
Greentech • Energy
Denver

At Sun Number, LLC, we’re focused on increasing the public’s awareness of the solar potential of buildings through our Sun Number ScoresTM. Founded in 2012, we are the recipient of the U.S. Department of Energy’s SunShot Incubator grant that enabled the development and initial deployment of Sun Number scores. Our goal is to increase solar installations by providing an easy-to-understand...

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Sun Number
Mad Agriculture
Angel or VC Firm • Food • Greentech
Boulder
7 Employees
9 Benefits
Our mission is to create a regenerative revolution in agriculture.

Our mission is to create a regenerative revolution in agriculture. At Mad Ag we believe that healing our relationships to self, others and the earth is our highest calling. To do this, we put radical ideals to work. We see no division between the work of the heart, soul and mind. We crack it all open, with the belief that...

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Mad Agriculture
Hygge Power Inc.
Greentech • Internet of Things • Mobile • Energy
Boulder
7 Employees
19 Benefits
Consumer-focused energy management solutions using mobile apps and intelligent, affordable residential energy storage.

Everyone powered with the cleanest energy possible is Hygge Power’s mission. We seek to fulfill that mission by offering deep tech energy products and services—plug-and-play home energy storage, energy forecast app, and power AI for comfort optimization—that help utility consumers stay connected and productive during power disruptions, while enabling utilities with cost-savings and load management tools for a more reliable...

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Hygge Power Inc.
Optera
Greentech • Social Impact • Software
Boulder
54 Employees
30 Benefits
Enterprise software for bold climate action

Optera delivers software for bold climate action. We help corporations worldwide reduce their environmental impact by providing credible carbon accounting for Scope 1, 2, and 3 emissions, actionable insights and forecasts, and tools to collaborate with supply chain and investment partners. Our clients lead many of the world’s most established and ambitious corporate sustainability programs, from Dell and HPE to...

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Optera
Resource Central
Greentech • Social Impact • Energy • Renewable Energy

Resource Central is an innovative nonprofit dedicated to empowering people to live more sustainably by making conservation simple. Based in Boulder, Colorado, they provide high-impact programs that help residents save water, reduce waste, and conserve energy. Their mission is to make conservation a way of life, helping millions of people improve their homes and conserve natural resources.

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Resource Central
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The Hemp Plastic Company
Boulder
4 Employees

Become part of the solution by choosing our hemp plastic alternatives. Using renewable and sustainable materials, our hemp bio-composites and bioplastics deliver the durability, versatility and availability you love about traditional plastics while helping you reduce your carbon footprint and plastic pollution. The result is a win for both your customers and future generations.

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The Hemp Plastic Company
O-I Glass, Inc.
Greentech • Industrial • Manufacturing
15 Offices
11,000 Employees

O-I Glass, Inc. is a global manufacturer of glass containers, producing bottles and jars for food, beverage, alcoholic drinks, cosmetics and pharmaceuticals. Headquartered in Perrysburg, Ohio, the company operates dozens of manufacturing plants worldwide and emphasizes sustainable, infinitely recyclable glass packaging. Founded in 1903, O-I partners with major brands to design innovative, brand-building glass packaging and advance circularity through recycling...

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O-I Glass, Inc.

O-I Glass, Inc.'s Top Stability & Growth Strengths

Profitability: Operating profit rose 13% to $846 million in 2025 and adjusted earnings nearly doubled, supported by approximately $300 million from the Fit to Win program. This points to margin recovery even as volumes were modestly lower.

Cost & Operational Efficiency: Fit to Win delivered about $300 million of benefits in 2025, margins expanded by roughly 170 basis points, and the savings target has been raised to at least $650 million by 2027. Actions include capacity reductions and network restructuring to align with muted demand.

Strong Market Position & Advantage: The company is characterized as a leading global glass‑container producer with international scale, a long operating history, and relationships with major food and beverage brands. Its broad footprint and incumbency underpin relevance in a specialized market.

Clear Comfort
Greentech • Healthtech • Other • Social Impact
Louisville
19 Employees
13 Benefits
At Clear Comfort, we deliver the easiest way to get the best, healthiest and most sustainable pool and spa experience.

We believe that you shouldn’t have to compromise your health or time to enjoy your pool or spa. Clear Comfort’s award-winning Advanced Oxidation (AOP) treatment systems minimize your exposure to toxic pool and spa chemicals and harmful disinfection by-products – so you can Swim Happy™ in clean, clear water that’s kind to your skin, eyes and lungs. At Clear Comfort,...

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Clear Comfort
Brown and Caldwell
Greentech • Renewable Energy
22 Offices
2,554 Employees
9 Benefits Hiring Now

Headquartered in Walnut Creek, Calif., Brown and Caldwell is an employee-owned firm with 2,100+ professionals serving clients locally and globally from 52 locations. We are the largest engineering and construction firm solely focused on the U.S. water and environmental sectors. Our creative designs and progressive solutions have helped municipal, federal and private organizations overcome their most complex environmental challenges. We offer...

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Brown and Caldwell

Brown and Caldwell's Top Stability & Growth Strengths

Strong Hiring & Retention: Headcount increased from about 2,614 to nearly 2,920 over a multi-year period, and the firm maintains a substantial slate of open roles to support a growing project pipeline. Active recruitment aligns with continued demand for environmental and water infrastructure services.

Strategic Partnerships: Partnerships with platforms like Lantern bring Microsoft-enabled digital tools into water-utility services. Collaborations such as work with the Water Utility Climate Alliance to shape climate-resilient design guidelines reflect a strategy of scaling capabilities through alliances.

Market Expansion: Regional scale-ups—including Pacific team additions and an expanded Chicago office—signal ongoing geographic growth to meet local client needs. A footprint spanning more than 50 locations across North America and the Pacific supports broader state and local expansion efforts.

Defenders of Wildlife
Greentech • Other
7 Offices
206 Employees
29 Benefits

Defenders of Wildlife is dedicated to the protection of all native animals and plants in their natural communities. For more than six decades, Defenders of Wildlife has been a leading force in the protection of wildlife and wild lands. We employ innovative, science-based approaches to protect imperiled wildlife, advocate for wildlife friendly climate and renewable energy policies and conserve and...

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Defenders of Wildlife
Dudek
Greentech • Professional Services
20 Offices
598 Employees
37 Benefits

Our 100% employee-owned firm includes 700+ environmental and engineering professionals working throughout the nation on a broad range of projects that improve communities'​ infrastructure and natural environment. We help public and private clients move projects forward through the complexities of regulatory compliance, budgetary and schedule constraints, and conflicting stakeholder interests. We've been headquartered in Encinitas, half a block from the beach since...

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Dudek
Sustainable Beverage Technologies
Food • Greentech • Other
Wheat Ridge
8 Employees
9 Benefits
SBT makes draft beer more profitable and environmentally sustainable.

SBT has a patented process to brew beer at 6 times traditional density, allowing us to distribute and serve draft beer in bag-in-box format (just like soft drinks). By reducing the volume and weight of the shipped product, we generate significant savings in cost and energy use throughout the supply chain.

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Sustainable Beverage Technologies
SavATree
Greentech
99 Offices
671 Employees
24 Benefits Hiring Now

SavATree is a full-service tree, shrub and lawn care company specializing in green options for landscape care. Our winning formula combines cutting edge technology, patented ingredients with customer passion - delivered by the best and brightest "Green Team"​ in the industry!

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SavATree
Switch Automation
Greentech • Internet of Things • Software • Energy
Denver
58 Employees
17 Benefits
Switch helps building owners digitize building management, reducing operating expenses and lowering energy use.

Switch Automation is a global real estate software company that helps property owners and facility managers reduce operating costs, improve energy efficiency and deliver exceptional occupant satisfaction. Our comprehensive smart building platform integrates with traditional building systems as well as Internet of Things (IoT) technologies to analyze, automate and control assets in real-time. We serve enterprise customers and partners in...

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Switch Automation
Mueller Water Products
Greentech • Other
5 Offices
720 Employees
26 Benefits

Mueller Water Products, Inc. (NYSE: MWA) is a leading manufacturer and marketer of products and services used in the transmission, distribution and measurement of water. Our broad product and services portfolio includes engineered valves, fire hydrants, metering products and systems, pipe repair, leak detection and pipe condition assessment. We help municipalities increase operational efficiencies, improve customer service and prioritize capital...

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Mueller Water Products

Mueller Water Products's Top Stability & Growth Strengths

Strong Market Position & Advantage: Mueller is positioned as a clear leader in core North American municipal water-distribution hardware, with stated #1 positions in fire hydrants and iron gate valves supported by a large installed base and entrenched specifications. This spec-driven footprint reinforces incumbent advantages in repair-and-replacement activity where switching is difficult.

Strong Revenue Growth: Revenue expanded year over year, with FY2025 net sales increasing versus FY2024 and Q1 FY2026 also showing growth versus the prior-year quarter. Management’s raised FY2026 sales guidance indicates expectations for continued, albeit more moderate, top-line expansion.

Cost & Operational Efficiency: Margins and operating income improved alongside record results, with cited contributors including manufacturing/footprint changes and SG&A discipline. These initiatives are presented as supporting stronger cash generation and profitability through FY2025 into FY2026.

Freedom Solar Power
Greentech • Energy • Solar • Renewable Energy
12 Offices

Freedom Solar Power is a leading full-service solar installation company providing turnkey solar solutions for residential and commercial markets. Based in Austin, Texas, they offer end-to-end services including site evaluation, design, permitting, financing, and installation of solar panels, backup battery storage, and EV charging stations across states such as Texas, Florida, Colorado, Virginia, and North Carolina.

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Freedom Solar Power

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