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View SupporTerre's top competitors like 1% for the Planet, ClimatePartner, and EcoAct.

The Carbon Trust
Our mission is to accelerate the move to a decarbonised future. Climate pioneers for more than 20 years, we partner with leading businesses, governments and financial institutions to accelerate their route to Net Zero. We are your expert guide to turn your climate ambition into impact. To date, our global network of 400 experts has helped set over 200 science-based targets and guided more than 3,000 organisations and cities across five continents on their route to Net Zero.
London, GB
Private
$60.6M Revenue
http://www.carbontrust.com
389 Employees
Green Mountain Energy Company
As the nation’s longest-serving renewable energy retailer, we’ve been on a mission to change the way power is made since 1997. By choosing our 100% clean, renewable wind and solar energy plans for their homes and businesses, our customers have avoided more than 98.9 billion pounds of CO2 emissions to date — that’s like taking 10.4 million cars off the road for an entire year! But we’re more than just an energy company. We’re helping our customers make a positive environmental impact, support a cleaner grid and green their carbon footprints with sustainable living solutions, renewable energy plans and the purchase of carbon offsets. Through our charitable program, Sun Club, we, along with our customers, have donated more than $13 million in grants to nonprofits, funding sustainability projects focused on renewable energy, energy efficiency, resource conservation and environmental stewardship. As a carbon-neutral company, we pride ourselves on building a cleaner, greener future, together with our customers. For more information, visit greenmountainenergy.com and gmesunclub.org. If you’d like to join our team of like-minded individuals working toward a more sustainable future, check out our current career opportunities at https://bit.ly/2ZInoZ1.
Houston, Texas, US
Private
$34.4M Revenue
https://www.greenmountainenergy.com/
311 Employees
ClimatePartner
ClimatePartner makes climate action valuable for every company at any stage of their journey. We guide them through calculating their emissions, reducing them, contributing to climate projects, and communicating impact. SBTi, EmpCo compliant labels, or Gold Standard projects: For effective results, we combine expert advisory with an AI enabled platform and a curated portfolio of climate projects into one end-to-end offering. The carbon accounting software ClimatePartner Hub brings together Scope 1–3 calculation, supplier engagement, and carbon reduction on a single platform. Since 2006, more than 6,000 companies across Europe and the US trust ClimatePartner. With 350 experts in our headquarter in Munich and in Essen, Berlin, Boston, London, Milan, Stockholm, The Hague, Vienna, Zurich, we bring global standards and local knowledge together. Learn more at www.climatepartner.com Imprint: www.climatepartner.com/en/imprint
München, DE
Private
$27.2M Revenue
https://www.climatepartner.com
325 Employees
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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