Federal contractor · AMITYVILLE, NY

C & S BUILDING SERVICES INC

C & S BUILDING SERVICES INC received $10.5M in federal contract obligations in FY2026, on 9 awards (+129% vs FY2025). Since FY2017: $49.1M. Its largest customer was National Park Service ($10.5M).

Obligations · FY2026
$10.5M
New awards
9
Sole-source
44%
Single offer
0.0%
UEI
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Small business
Open in the contracts explorerRelationship graph

Spending by fiscal year

Obligations per federal fiscal year (October–September).

  1. 3.4MFY2017
  2. 4MFY2018
  3. 5.4MFY2019
  4. 5.8MFY2020
  5. 4.4MFY2021
  6. 5MFY2022
  7. 4.6MFY2023
  8. 1.4MFY2024
  9. 4.6MFY2025
  10. 10.5MFY2026

Top buying agencies

Obligations in FY2026.

  1. National Park Service$10.5M100%
    9 awards

What was bought · Where the work was performed

Obligations in FY2026.

What was bought

  1. Facilities & utilities$10.5M100%

Where the work was performed

  1. Hudson County, NJ$7.2M68%
  2. Richmond County, NY$3.3M32%

Integrity signals

Shares of the year's obligations, next to the country's.

  • Low competition44%
    US 39% · $4.6M
  • Sole-source awards44%
    US 30% · $4.6M
  • Single-offer competitions0.0%
    US 8.7% · $0
  • Urgency justifications0.0%
    US 5.1% · $0

A signal is a reason to look closer, not evidence of wrongdoing: most sole-source awards are lawful and justified.

Agencies awarding it sole-source contracts

  1. National Park Service$4.6M
    Department of the Interior · 7 awards

Largest awards

  1. MONTHLY MECHANICAL OPERATIONS AND MAINTENANCE SERVICES FOR THE STATUE OF LIBERTY AND ELLIS ISLAND NATIONAL MONUMENTS$5.9M
    National Park Service· Hudson County, NJ· Facilities & utilities· Sep 25, 2026 – Sep 25, 2026· 140P4526F0026
  2. MECHANICAL OPERATIONS AND MAINTENANCE SERVICES AT THE STATUE OF LIBERTY NATIONAL MONUMENT AND ELLIS ISLAND.$759.7K
    National Park Service· Richmond County, NY· Facilities & utilities· Jan 30, 2026 – Jan 30, 2026· 140P4526C0003
  3. STLI MECHANICAL SERVICES JUNE-JULY 2026$699.6K
    National Park Service· Hudson County, NJ· Facilities & utilities· Jul 15, 2026 – Jul 15, 2026· 140P4526C0019
  4. STLI MECHANICAL OPERATIONS AND MAINTENANCE SERVICES$692K
    National Park Service· Richmond County, NY· Facilities & utilities· May 6, 2026 – May 6, 2026· 140P4526C0012
  5. STLI MECHANICAL SERVICES$640.4K
    National Park Service· Richmond County, NY· Facilities & utilities· Jun 2, 2026 – Jun 2, 2026· 140P4526C0014
  6. STLI MECHANICAL SERVICES JULY-SEPT. 2026$630.8K
    National Park Service· Richmond County, NY· Facilities & utilities· Aug 17, 2026 – Aug 17, 2026· 140P4526C0029
  7. 1.5-MONTH BRIDGE FOR MECHANICAL OPERATIONS AND MAINTENANCE SERVICES AT THE STATUE OF LIBERTY NATIONAL MONUMENT AND ELLIS ISLAND. AS WELL AS SPECIAL EVENTS FOR THE MONTH OF NOVEMBER.$599.9K
    National Park Service· Richmond County, NY· Facilities & utilities· Dec 12, 2025 – Dec 12, 2025· 140P4526C0001
  8. STLI MECHANICAL SERVICES FEB-MARCH 2026$596.3K
    National Park Service· Hudson County, NJ· Facilities & utilities· Mar 18, 2026 – Mar 18, 2026· 140P4526C0005

Competitors

Companies that win from the same buyers in the same markets: obligations by agency and industry compared over the last three fiscal years.

Compared on 1 market (agency × industry), FY2024–FY2026.

  1. PERSIMMON GROVE LLC$5.7M+1,496% in FY2026
    PURCELLVILLE, VA · 34% of this company's obligations are in markets they both serveNational Park Service · Facilities support services
  2. UNIFY NOW$4M
    WOODLAND HILLS, CA · 24% of this company's obligations are in markets they both serveNational Park Service · Facilities support services
  3. ALCATRAZ ISLAND SERVICES LLC$3.8M−68% in FY2026
    ORLANDO, FL · 15% of this company's obligations are in markets they both serveNational Park Service · Facilities support services

Showing the top 3 of 25 competitors. Open the profile for the full list.

Who sells to the same buyers in the same markets, not who wins against whom on a given contract. Prime contract obligations by the agency and NAICS code of each award; subawards are never added. A company is a family of legal entities, joined by parent UEI or, in part, by an AI reading of names.

Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 10, 2026, loaded Oct 10, 2026 · FY2024–FY2026.

Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 10, 2026, loaded Oct 10, 2026.