Tam Enterprises Inc.

Tam Enterprises Inc., doing business as A Plus Mechanical Service, provides wastewater treatment plant repairs, emergency maintenance, and critical infrastructure services to the Federal Correctional Institution Otisville as a prime contractor competing under full-and-open procurement on small-business set-aside and non-set-aside purchase orders. The company is a for-profit Subchapter S corporation headquartered in Goshen, New York, with a narrow but deep footprint focused on facility infrastructure — specifically water and wastewater treatment systems, mechanical repair, and emergency response at a single federal site.

Tam's federal customer base consists entirely of the Department of Justice Bureau of Prisons, concentrated at FCI Otisville in Otisville, New York. Fourteen of sixteen total awards in the source data flow from that single facility, accounting for $577 thousand of the $580 thousand combined potential value across all awards — reflecting 100% customer concentration and a transactional, site-based engagement model rather than a blanket IDIQ or multi-site contract vehicle relationship. The company does not hold parent vehicles, GWACs, or BPAs; all awards are individual purchase orders issued directly by FCI Otisville for discrete scope events.

Recent representative work includes a $73.6 thousand total-small-business set-aside purchase order awarded September 21, 2023, to replace sand in two sand gravity filter boxes at the facility's wastewater treatment plant; a $25.3 thousand non-set-aside emergency repair and service purchase order awarded March 20, 2024; and a $17.7 thousand non-set-aside purchase order awarded September 18, 2026, to remove debris from the sequencing batch reactor tank at the facility's wastewater treatment plant. Scope patterns across the award portfolio center on repair, maintenance, emergency response, and equipment replacement for wastewater systems — the top NAICS categories are Water and Sewer Line and Related Structures Construction (4 awards), Mechanical Power Transmission Equipment Manufacturing (3 awards), and Plumbing, Heating, and Air-Conditioning Contractors (2 awards). The PSC portfolio aligns: Maint/Repair/Rebuild of Equipment — Water Purification and Sewage Treatment Equipment accounts for 4 awards, with miscellaneous power transmission and plumbing/heating/waste disposal technical representation comprising the remainder.

Activity has been sporadic — one award in 2021, one in 2023, three in 2024, two in 2025, and one in September 2026 — with only one award (combined potential value $18 thousand) reaching ultimate completion inside the next twenty-four months. Tam does not subcontract and operates exclusively as a prime; the vendor's federal footprint is entirely dependent on continued FCI Otisville facility maintenance and emergency repair needs at a single correctional institution with no geographic or customer diversification.