Newsweek Published America's Greenest Companies 2027
The list identifies 650 firms that met rigorous criteria for emissions, water usage, and waste management disclosures.
Updated on Oct. 13, 2026 in Environmental
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Do you trust that top-rated green companies are making meaningful progress on environmental sustainability?
Newsweek has identified 650 U.S. corporations for its 2027 greenest companies ranking. The selection followed an analysis of more than 6,000 public and private firms based on self-reported sustainability data and media monitoring.
Why it matters
This ranking highlights the current corporate approach to environmental accountability by filtering firms against active ecological misconduct records. It serves as a benchmark for how companies manage and disclose critical resource usage data.
Analysts measured performance across 25 sustainability parameters, including greenhouse gas emissions and waste generation. Companies were required to provide public sustainability data as of June 30, 2026, to qualify for the review.
The players
Newsweek
A digital and print news publication that produces annual rankings of corporate performance.
Kraft Heinz
A food and beverage company recognized with five-star distinction for its sustainability metrics.
T-Mobile
A wireless network operator that received a five-star distinction in the 2027 rankings.
Applied Materials
A semiconductor manufacturing equipment supplier cited for its environmental performance.
The details
The evaluation process required companies to maintain U.S. headquarters while undergoing a multi-step review of environmental metrics. Researchers also performed media monitoring from August 31, 2024, to August 31, 2026, to exclude firms involved in greenwashing—the practice of making misleading claims about the environmental benefits of a product or service—or other ecological misconduct.
Timeline
August 31, 2024: Start date for media monitoring of environmental misconduct.
June 30, 2026: Deadline for required sustainability data disclosure.
August 31, 2026: End date for media monitoring of environmental misconduct.
October 13, 2026: Announcement of the 2027 Greenest Companies ranking.
The Tech Race
This release follows the precedents established by previous corporate sustainability indices. It marks a shift toward standardized media monitoring to verify that internal data disclosures align with public corporate conduct.
Consumers and investors can use this list to identify companies that maintain specific transparency standards regarding their environmental footprint. The ranking helps distinguish which firms have avoided major ecological controversies over the last two years.
The takeaway
The selection criteria prioritize companies that balance public data disclosure with a clean record in environmental media monitoring. Stakeholders should monitor future releases to see which companies maintain their five-star status as disclosure requirements evolve.
Further reading
Learn more about the intersection of corporate policy and ecological impacts in our Environmental section.
More information
View the complete ranking list on the Newsweek rankings portal.
Live Poll
Do you trust that top-rated green companies are making meaningful progress on environmental sustainability?
