National Grid Transco (NYSE:NGG – Get Free Report) and Unitil (NYSE:UTL – Get Free Report) are both utilities companies, but which is the better business? Get National Grid Transco alerts:DividendsNational Grid Transco pays an annual dividend of $4.07 per share and has a dividend yield of 5.5%. ProfitabilityNet Margins Return on Equity Return on Assets National Grid Transco N/A N/A N/A Unitil 9.54% 9.46% 2.69%Valuation and EarningsThis table compares National Grid Transco and Unitil’s net margins, return on equity and return on assets. This table compares National Grid Transco and Unitil”s revenue, earnings per share (EPS) and valuation. Receive News & Ratings for National Grid Transco Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for National Grid Transco and related companies with MarketBeat.com's FREE daily email newsletter.