Koester-Tusell Erin

Koester-Tusell Erin, a woman-owned sole proprietorship based in Rockville, Maryland, delivers teen and gallery educator services to the Smithsonian Institution as a prime contractor on a full-and-open basis, with no set-aside designation across its federal footprint.

The vendor's recent award history consists entirely of purchase orders issued by the Smithsonian Institution for education program delivery in Washington, DC. The three awards span September 2022 through August 2026, with combined potential value of $89 thousand and $66 thousand obligated (74% realization). Recent work includes a $54,600 purchase order for teen educator services running through May 31, 2027; a $23,040 purchase order for teen educator services through June 30, 2026 (now completed); and an $11,550 purchase order issued in September 2022 for gallery educator services supporting the National Portrait Gallery's education programs during fiscal years 2022–2023. All three awards carry firm fixed price or labor-hours pricing and are performed in Washington, DC.

Customer concentration is absolute: the Smithsonian Institution accounts for 100% of awards and 100% of combined potential value. Work falls under NAICS 611710 (Educational Support Services) and PSC Education/Training–Lectures or Support–Professional categories. Activity is sparse — one award per year across 2022, 2025, and 2026 — with one purchase order ($55 thousand potential value) due for completion inside the next twenty-four months, creating a modest recompete opportunity. The vendor has no subcontract footprint and does not sit on government-wide vehicles, agency-wide IDIQs, or BPAs.