Rankings · Growth
Fastest-growing A-graded companies
Graded A, with more than $1B of revenue now and at least $250M three years ago, ranked by how fast revenue grew each year over those three years — the same comparison the grade’s own “revenue growing overall” check makes.
4 companies meet this test
Figures as of September 30, 2026
| # | Company | Grade | Revenue growth | Free cash flow growth | Net margin | Market value |
|---|---|---|---|---|---|---|
| 1 | SBSCOMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP | A+ | +20% a year | +24% a year | 22.2% | $3.6B |
| 2 | ELPCENERGY CO OF PARANA | A | +8% a year | +2% a year | 10.3% | $9.1B |
| 3 | CWENClearway Energy, Inc. | A | +7% a year | +5% a year | 6.4% | $1B |
| 4 | ESEVERSOURCE ENERGY | A | +3% a year | — | 10.4% | $24.1B |
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A ranking orders companies by one stated measure. It is not a recommendation, and it says nothing about whether any share price is reasonable.