HighByte, a fast-growing Portland industrial software startup aiming to win what one of its founders calls a war for tech talent, won the $50,000 grand prize in Gorham Savings Bank's 2021 LaunchPad competition on Tuesday. "I'm actually at a loss for words, for once," Torey Penrod-Cambra, HighByte's co-founder and chief marketing officer, said from the stage when her company was announced as the winner. This year's edition, live-streamed from AV Technik studios in Scarborough, was the first virtual version of the annual pitch contest in a relaunch after last year's cancellation during the pandemic. Besides HighByte, finalists were: Brave Foods, of Portland; Erin Flett/Studio e Flett, of Gorham, whose founder was honored as a 2020 Mainebiz Woman to Watch; Huga Heat, of Southport, a maker of battery-powered seat cushions; and Freeport-based potato-chip maker Vintage Maine Kitchen, a returning LaunchPad finalist from 2019.