United Site Services Of Maryland, Inc.
Meridian, ID Doing business as Nature's Calling Part of United Site Services, Inc.
- UEI
- C5KUNHN4WL86
- CAGE
- 026P2
- Primary NAICS
- 562991 Septic Tank and Related Services
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
-
Its parent company, United Site Services, Inc., ranks:
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- Corporate family
-
-
Parent
Meridian, ID
W9FKRDUFKHL3
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Parent
Meridian, ID
W9FKRDUFKHL3
- SAM.gov registration date
- Physical address
- 2487 W Navigator Dr Ste 300, Meridian, ID 83642, USA
- Website
- unitedsiteservices.com
- Founded
- 1999
- Employees
- 1K-5K
- Industry
-
- Industrials
- Commercial & Professional Services
- Professional Services
- SIC code
- 87 Engineering & Management Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $59,261 |
| FY2025 | $164,354 |
| FY2024 | $227,882 |
| FY2023 | $445,689 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Smithsonian Institution | $45,549 | |
| 2 | Department of Homeland Security | $27,384 | |
| 3 | Office of the Secretary of Defense | $6,390 |
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Field sanitation at FT pickett, VA - 30 may-11 june 2026 | North Carolina National Guard (ARNG) | $15,314 | |
| 210TH MP CO field sanitation ISO at at FT pickett, VA from 1-14 may 2026. | North Carolina National Guard (ARNG) | $14,000 | |
| Bike racks. 2(D). | Secret Service | $27,384 | |
| Portable latrines. | MICC Fort Lee | $86,985 | |
| Galvanized steel barricades | Secret Service | $14,850 |
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Korte Construction Company | N6945020F0881 | $33,195 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Jots | — | 562111 Solid Waste Collection |
| Walters Septic Service | Grantville, PA | 562991 Septic Tank and Related Services |
| Gotugo LLC | Glen Burnie, MD | 562991 Septic Tank and Related Services |
| Bobby's Pottys | White Marsh, MD | 562991 Septic Tank and Related Services |
| M.a. Frazier, Inc. | Wellfleet, MA | 562111 Solid Waste Collection |
About the company
United Site Services Of Maryland, Inc., doing business as Nature's Calling, is a subsidiary of United Site Services, Inc. that provides portable sanitation equipment rental, temporary field sanitation services, and temporary infrastructure solutions (barriers, barricades, bike racks) to federal agencies as a prime contractor on full-and-open purchase orders and delivery orders. The vendor competes predominantly without set-aside designations, though one Woman-Owned Small Business Sole Source award and two Total Small Business set-aside awards appear in recent history. Nature's Calling is registered in the System for Award Management and headquartered in Westborough, Massachusetts.
The vendor's customer concentration is heavily skewed toward the Department of the Interior National Park Service, which accounts for 85 awards (55% of the total award count) and $5.2 million in combined potential value across 155 tracked prime awards. The Army Installation Management Command Northeast Region is the second-largest customer by dollars, holding 10 awards worth $4.7 million for long-term and short-term portable latrine rentals at northeastern military installations through March 2025. The Department of Homeland Security (Secret Service and Coast Guard) and the U.S. Marine Corps round out the active customer set. The top five customers cover 72% of all awards by count and 91% of combined potential value. Capability work includes a $364 thousand Army delivery order for FY23 latrine rentals across multiple northeastern installations, a $355 thousand monthly long-term latrine rental contract from the Department of Defense Northeast Region through September 2024, and a $164 thousand Smithsonian Institution purchase order for portable toilet rental supporting the 2022 Folklife Festival (completion through June 2025).
Nature's Calling's award footprint spans 26 federal agencies and sits primarily on two indefinite delivery contracts: IDC INP14PC00106 carries 79 task orders worth $983 thousand, and IDC W91QF519D0003 carries 8 task orders worth $2.4 million. The vendor's primary NAICS categories are All Other Consumer Goods Rental (80 awards) and Septic Tank and Related Services (50 awards); the top PSC code is Lease Or Rental Of Equipment—Miscellaneous (82 awards). Activity has declined from 16 awards in 2022 to 2 awards each in 2025 and 2026, with only one award facing ultimate completion in the next twenty-four months ($31 thousand combined potential value), representing minimal near-term recompete exposure. The vendor holds a single subcontract sub-award from 2022 as a sub to Korte Construction Company for temporary construction fencing at Joint Base Charleston, South Carolina. Combined obligated dollars total $5 million across 44% of the $11.4 million combined potential value across all tracked awards.
Quick answers
Is United Site Services Of Maryland, Inc. registered in SAM.gov?
Yes. United Site Services Of Maryland, Inc.'s SAM.gov registration is active through October 8, 2027.
What is United Site Services Of Maryland, Inc.'s CAGE code?
United Site Services Of Maryland, Inc.'s CAGE code is 026P2, and its Unique Entity ID (UEI) is C5KUNHN4WL86.
How much has United Site Services Of Maryland, Inc. received in federal contracts?
Federal contracts obligated $164,354 to United Site Services Of Maryland, Inc. in fiscal year 2025 and $897,186 in fiscal years 2023 through 2027.
How does United Site Services Of Maryland, Inc. rank among federal contractors?
United Site Services Of Maryland, Inc.'s parent company, United Site Services, Inc., ranked #24 in NAICS 562991, #31 in NAICS 56299 and #31 in PSC W085 in FY2025.
What is United Site Services Of Maryland, Inc.'s most recent federal award?
United Site Services Of Maryland, Inc.'s most recent federal contract award is Field sanitation at FT pickett, VA - 30 may-11 june 2026 (W9124226PA023), from North Carolina National Guard (ARNG), on May 30, 2026.
On GovTribe
See United Site Services Of Maryland, Inc.'s full federal record
- Federal contract awards
- IDV awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
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