257

257 is a data platform providing home energy insights and tools. In practice that means building AI products and features, often for other companies.

Who is it for? Mostly companies adding AI to a product. Alongside the main category they mention Artificial Intelligence (AI), Energy, Energy Efficiency and Energy Management. They are a very small team, 1 to 10 people, which usually shapes who they work with. Small vendors mean quick answers and real influence on the roadmap, but check who covers support when someone is out.

257 is based in New York, New York. More on 257.co.

Our checklist for this category: track record, data handling, and who owns the models. Get the renewal terms in writing before the first invoice.

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