Companies / Industry directory / Utilities Electric, Gas & Sanitary Services 1 stock in Utilities · SIC 4900. Company snapshot 2026-10-09 · Calculated market cap as of 2026-10-02 · USD Find a company or ticker Stocks in Electric, Gas & Sanitary Services. Sorted by market cap, largest first. Ticker Company Market Cap Revenue (TTM) Net Income (TTM) MGEE MGE ENERGY INC $2.65B $767.39MTTM ended 2026-03-31 $142.78MTTM ended 2026-03-31 No matching companies.