AwardWatchdog is a free tracker for small businesses selling to the federal government. Every weekday it pulls open set-aside bids (SB, 8(a), WOSB, SDVOSB, HUBZone) from SAM.gov into pages you can filter by agency, industry and state. It also lists sources sought notices, small-business contracts coming up for recompete (with incumbent, agency and value), and who has been winning in each industry. No login, no paywall. A free weekday email digest matched to your NAICS codes, states and set-asides is optional.