Top Environmental Science Startups in 2026

Seed Health, Inc. is a microbial sciences company pioneering applications of bacteria to impact human and environmental health. In collaboration with leading academic partners, our foundry model accelerates breakthrough science to develop live biotherapeutics and consumer innovations. Our Scientific Advisory Board is comprised of leading scientists with expertise in microbiology, immunology, genetics, metabolomics, gastroenterology, pediatrics, environmental sciences, and women’s health. Learn more—seedhealth.com Our consumer portfolio, Seed®, develops next-generation probiotics for specific developmental stages and various ecosystems of the body—seed.com

Planet Alpha Corp. (“PαC”) is a carbon measurement infrastructure, carbon securities and carbon products company integrating multiple Earth, economic and social transactions to reduce emissions of CO2 and greenhouse gases (GHG) to benefit landowners, investors and the planet. We do good by directly supporting landowners for their reduction of CO2 emissions through forest growth and management resulting in a performance-linked GHG economy positioned for business growth and return on investment. PαC creates a new forest carbon business paradigm that pays landowners and Indigenous People, upfront and annually, for directly measured carbon sequestration and sustainable management over the lifetime of the project covering decadal intervals up to 100 years.

Lunar Outpost is the leader in commercial planetary robotics, enabling businesses and governments to explore and utilize the lunar surface with a focus on developing technologies that have both terrestrial and space applications. Comprised of engineers with experience working on NASA, defense, and commercial programs, Lunar Outpost is well suited to actively engage with customers in a collaborative manner to produce quality products. Lunar Outpost is enabling an extended human presence in space while positively impacting Earth and always striving toward #thenextleap!

Know your environment. Protect your health. Environmental Working Group (EWG) works to protect people from toxic chemicals – in their homes, food, tap water and everyday household products. We use unique expertise to gather and analyze mountains of data – on personal care products, household cleaners, processed foods, drinking water contaminants, agriculture damage – to expose risky practices, and products, confront manufactures and industries directly, and challenge the chemical status quo. Our signature shopping guides and databases push companies to make cleaner, greener products and give consumers the information they need to make safer choices today. Our teams in DC, San Francisco, Sacramento and Minneapolis go directly to lawmakers to educate them about these issues and push for the regulatory reforms we need. In 2020, EWG published 142 new’s and analysis posts, 19 AG Mag blog posts, 11 Children’s Health posts and 130 press releases and statements. More than 26 million web

EQLand is a cloud-based platform that helps you to monitor local, national and international environmental issues in real time. It provides a range of built-in tools for analyzing large amounts of data on environmental issues such as air quality, water quality and waste management. EQLand is for anyone who wants to know about the risks associatedwith any property or environment, so that they can make informed decisions about eco-friendly ways to manage those risks

cKinetics provides solutions in the areas of: 1. Capturing market data to provide actionable insight, information and analytics 2. Creating and implementing a resource blueprint and improving process efficiency 3. Providing access to capital for innovation and sustainability Some of our products can be seen at: comMIT.cKinetics.com CaliforniaCarbon.info

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 a comprehensive range of engineering, scientific, consulting and construction services and all the essential ingredients® for a successful project and a standout experience. We are passionate about delivering exceptional service, collaborating with clients, adding value through innovation and building relationships that last. This passion dates back to Ken Brown and Dave Caldwell, who, since founding the company in 1947, stood out for their ability to solve engineering challenges, apply technology to emerging environmental problems, and serve their community. Service, great technical solutions, innovation. These are the qualities our founders carried forward as the world changed and the company grew into what it is today. Now, more than 75 years later, these qualities are just as important – essential, really – to Brown and Caldwell and to our clients.

Karen Clark & Company (KCC) is the innovation and technology leader in catastrophe risk modeling. KCC professionals are globally recognized experts in catastrophe modeling and risk management. From our headquarters in Boston, Massachusetts, we provide advanced models, innovative software, and comprehensive consulting services to (re)insurance company executives nationwide. These services enhance business strategies, and the financial results put our clients at a competitive advantage. KCC catastrophe models currently cover tropical cyclones, extratropical cyclones, severe convective storms, floods, earthquakes, winter storms, and wildfires in over 50 countries. For more information, please visit kcc.us.com.

Amaratek provides specialized contract services to the U.S. Department of Defense and other government and commercial partners, with a focus on developing innovative technologies and practical solutions to complex technical challenges. Our work has included the development of biological systems for the neutralization of chemical warfare agents, including the successful delivery of a working system to the U.S. military. Our experience supporting defense-related programs has given our team a unique understanding of how to develop reliable technologies for demanding environments where performance, safety, and operational reliability are critical. We recognize that many of the capabilities and technical approaches developed for military applications can also provide significant value in civilian and humanitarian settings. Amaratek applies this experience to civil government and international projects where the need for resilient and dependable infrastructure often mirrors the challenges faced in defense environments. Areas such as public health, water treatment and management, energy systems, transportation, and environmental protection require many of the same principles of reliability, adaptability, and innovative problem-solving. In addition to our work with U.S. government agencies, Amaratek provides technical services and expertise to foreign governments, nongovernmental organizations (NGOs), and social entrepreneurs. We work collaboratively with our partners to understand their specific challenges and develop practical, sustainable solutions that can be implemented in real-world environments. Our goal is to take the technical expertise and problem-solving capabilities developed through demanding defense and government projects and apply them more broadly to challenges that improve the resilience, safety, and quality of life of communities around the world.