The Yankees longest streak of consecutive winning seasons was 39. It ran from 1926-1964.
The longest winning streak by a junior varsity basketball girls team was 80 strait games by a school in Akron, Ohio. It is worthy to consider that many schools do not report these streaks for this level, so there could be an unreported streak that is higher.
Houston Rockets 22 winning streak
UCLA's 88 game win streak is the longest in mens basketball
I believe it is the SF 49ers with 17 winning seasons.
womens college basketball. uconn
The longest winning streak in men's NCAA basketball is 88 games by UCLA from 1971-1974.