A-1 Portajohns

A-1 Portajohns, operating as Mashaw, Robert, is a small business sole proprietorship based in Antwerp, New York, that provides portable sanitation services — portable chemical latrines, hand wash stations, and gray water tanks — to the U.S. Army on a total small business set-aside basis. The vendor operates exclusively as a prime contractor (100% of awards) and holds two active Blanket Purchase Agreements with the Army Northeast Region valued at $490 thousand and $197.5 thousand, running through April 2026 and April 2031 respectively.

Customer concentration is heavily concentrated within Army installations in the Northeast Region. The top five funding agencies account for 96% of awards, with the Army Installation Management Command Northeast Region anchoring the portfolio at 13 awards and $2.5 million in combined potential value, followed by Army Forces Command at 20 awards and $421 thousand combined potential value, and the Department of the Army at 17 awards and $375 thousand combined potential value. The difference in ranking reflects the dollar profile: Army Installation Management Command's 13 awards carry the preponderance of the contract value through longer-duration field exercise and base support operations, while Army Forces Command's 20 awards represent higher-volume but lower-dollar individual task orders.

The vendor's recent work footprint sits on two primary vehicles: Blanket Purchase Agreement W911S216A3012 (12 task orders, $309 thousand combined potential value) and Blanket Purchase Agreement W911S221A6020 (12 task orders, $277 thousand combined potential value), both managed by Army Northeast Region. Individual task orders range from $4.7 thousand to $54.1 thousand and support field exercises, training operations, and base sanitation at Fort Drum, New York, with subordinate deployment to Mountain Peak in Watertown, New York. Representative recent work includes a $90.2 thousand purchase order awarded May 26, 2026, for sanitation support to the 2nd Infantry Brigade Combat Team training exercise (119 portable toilets with 1,263 services, 53 hand washing stations with 578 services, 12 grey water tanks with 44 services), a $39.5 thousand BPA call issued April 28, 2025, for 2nd Brigade Combat Team operations at Mountain Peak, and a $23.1 thousand purchase order awarded May 13, 2026, supporting the Massachusetts Army National Guard annual training at Fort Drum.

Activity has remained sparse and episodic across the five-year lookback — one award in 2023, three in 2024, and six in 2026 — without sustained growth trajectory. The vendor's primary BPA (W911S221A6020) expires April 27, 2026, presenting a recompete opportunity, though the source shows the vendor secured a successor vehicle (W911S225AA052, $490 thousand ceiling, April 2026 award, April 2031 ultimate completion) suggesting continuity in the Army's procurement posture. NAICS concentration reflects the vendor's narrow specialization: 55 awards under Septic Tank and Related Services (NAICS 562991), with minor outliers in janitorial services and waste collection.