A forward-looking 90-day calendar of every SAM.gov registration expiring in District of Columbia during Q2 2026, with concentration analysis flagging coordinated-renewal addresses.
The District of Columbia hosts the densest per-capita federal contractor base in the United States, anchored by federal headquarters contracts, regulatory affairs services, government affairs consultancies, and federal services contractors operating within the District proper. The Q2 2026 edition covers 1,448 federal contractor SAM registration expirations between April 1 and June 30, 2026.
The edition flags 5 coordinated-renewal addresses in the District where 3 or more co-located entities share a single SAM.gov expiration date — characteristic of the dense shared-office and registered-agent patterns common in the federal capital market.
9 pages including cover, executive summary, and concentration findings with full address rosters.
Addresses where 3+ co-located federal contractor entities share a single expiration date.
Month-by-month aggregate counts and top expiration cities for the 90-day window.
Curated list combining concentration-flagged entities and earliest-expiring entities.
Entity Name, UEI, State, City, Address, Cluster ID, SAM Expiration Date, Days Until Expiration, Concentration Flag, Cluster Size, Top Concentration Date.
Filter by Days Until Expiration to prioritize renewal outreach. Filter Concentration Flag = Yes for coordinated-renewal addresses.
District of Columbia's Q2 2026 edition flags 5 coordinated-renewal addresses. The full Concentration Findings section in the PDF identifies each address, the entities sharing it, and the renewal date. Subcontract managers and PTAC counselors use this data to prioritize outreach to multi-entity locations where one missed renewal can affect several active contractors simultaneously.
$79 one-time purchase. PDF + operational CSV delivered via Gumroad. Q2 2026 edition covers expirations April 1 through June 30. Q3 2026 publishes July 1 as a new edition.
Buy District of Columbia Calendar — $79 →Comprehensive due diligence on every federal contractor cluster in District of Columbia — exclusion matches, density analysis, and risk landscape. Complementary to the Calendar's forward-looking renewal timing.
$79 per state per quarter. Free Missouri Calendar available as a sample edition.