Top Greentech Companies in Denver & Boulder, CO (110)

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...

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...

The Premier Provider of Industrial Cleaning, Environmental Services, and On-Site Maintenance Support Programs. At EnviroVac, we strive to be the best industrial cleaning and environmental service supplier! Our staff of experienced personnel has been hand-selected to provide our clients with incomparable quality services. Our resources include a highly experienced staff and hundreds of pieces of state-of-the-art equipment to serve your industrial vacuuming, hydroblasting,...

Emerald Technology Ventures is a global venture capital firm focused on sustainable industrial innovation. Founded in 2000, it invests in startups addressing climate change and sustainability, including water efficiency, smart packaging, transport electrification, energy, and industrial automation. The firm partners with entrepreneurs, corporations, institutional investors, and governments, managing and advising more than €1 billion in assets while seeking financial returns...

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.

H3X manufactures the world's most power-dense integrated motor drives (IMDs) ranging from 30kW to 3MW for aerospace, defense, marine, and heavy industry. From the sea to the sky, our products unlock major benefits for weight-sensitive, volume-constrained, and high power applications. At the core of our organization are principles that guide every action and decision we make. These values define our story,...

ENFRA is a national energy infrastructure and Energy-as-a-Service provider delivering vertically integrated engineering, construction, maintenance, asset management, and energy solutions. It serves mission-critical sectors including healthcare, higher education, and data centers, helping clients achieve measurable energy savings, reduce emissions, and build resilient infrastructure nationwide. Its mission is to deliver innovative solutions that empower customers and promote a sustainable future.

Based in Boulder, CO, ION Clean Energy has received approximately $85 million in highly competitive U.S. Department of Energy (DOE) awards to support bench-scale and large-pilot testing, including the construction of a new pilot at Calpine Corporation’s Los Medanos Energy Center in Pittsburg, California. Most recently, ION has been the technology of choice for DOE-funded commercial Front-End Engineering Design (FEED)...

The USGS is a science organization that provides impartial information on the health of our ecosystems and environment, the natural hazards that threaten us, the natural resources we rely on, the impacts of climate and land-use change, and the core science systems that help us provide timely, relevant, and useable information.

HDR is an employee-owned design firm specializing in engineering, architecture, environmental and construction services. We’re ranked No. 6 among the world’s design firms and we’re the largest healthcare design firm. Led by the strength of our values and a culture shaped by employee ownership, we network with each other, build on each other’s contributions, and collaborate together to make great...

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.

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...

EcoEnclose is an eco-friendly packaging company that works with many of the most sustainable ecommerce brands on the planet. We develop, manufacture and distribute the most eco-friendly ecommerce shipping supplies in North America. We are passionate about using business to improve our environment.

Crowdfunding Natural Product ideas and innovators

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.

LightStanza is the architecture industry’s most comprehensive daylighting analysis tool. We are radically transforming how buildings are designed, built, and operated for the benefit of human health and energy efficiency on a massive scale. Our tool allows architects to make meaningful decisions, backed with accurate and actionable data.

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,...

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...

We help businesses, municipalities, and schools save money by delivering clean on-site power. We convert simple warehouses into electrified industrial platforms built for the future. We enable the nation’s leading commercial and industrial real estate firms to capture the benefits of solar across their properties. We align ESG goals with revenue targets. We deploy renewable energy assets today that will power America’s...

The Complete Transformation of Tap Water. Seven years ago we saw a massive and growing problem that needed to be solved. Single-use plastic water bottles. There are over 38 BILLION plastic water bottles that end up in our oceans, lakes, rivers, and landfills—and we decided to eliminate these by disrupting bottled water with a radically new type of water called FloWater....