Are all federal contracts posted on SAM.gov?

What's posted on SAM.gov: **Must Be Posted:** - Solicitations over $25,000 - Sources sought notices - Pre-solicitation notices - Award notices over $25,000 **NOT Required to Post:** - Micro-purchases (under $10,000) - Certain simplified acquisitions - Classified procurements - Urgent requirements (some) - Sole source under thresholds **Where to Find Other Opportunities:** - Agency-specific portals - GSA eBuy (for Schedule holders) - SubNet (subcontracting opportunities) - GovWin, Bloomberg Gov (paid services) - Direct agency contact **Hidden Opportunities:** - Government purchase card buys - BPA calls under existing agreements - Task orders (may only go to contract holders)