RSO, INC. (MD)
Registration and award facts
SAM.gov registration as of
- Net obligations since FY2008
- $1.62M
- $1,617,278under this UEI
- FY2026 obligations
- -$10.01K†
- -$10,010Provisional
- Awards and orders
- 49
- with positive net obligations5 IDV vehicles held
- Latest action
- Mar 12, 2026
- SAM.gov registration
- Expired
- Registration expiration date Sep 4, 2025
Registration
- Doing business as
- RSO INC
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Business start date
- Apr 15, 1974 (52 years)
- Location
- Laurel, MD
- State of incorporation
- Maryland
- Website
- rsoinc.com
† FY2026 obligations (provisional; DoD awards signed after Jul 28, 2026 are not yet public).
Contract actions that the Department of Defense both funds and awards are withheld at the source for 90 days, so DoD awards signed after Jul 28, 2026 are not yet public.
Source: SAM.gov entity registration and FPDS contract actions recorded under UEI JDYRJHBMWEH4. GovChime does not check exclusions.
Performance
Net obligations recorded under this UEI since FY2008. Top lists show the largest five by share of this vendor's net obligations; the shares do not sum to 100%.
Net obligations by fiscal year of action
- FY2026: -$10,010 (de-obligation) (provisional)
- FY2025: -$93,336 (de-obligation)
- FY2024: $88,141
- FY2023: $64,179
- FY2022: $97,370
- FY2021: $68,095
- FY2020: $129,453
- FY2019: $43,986
Show all 19 yearsEarlier years (FY2008–FY2018)
- FY2018: $106,944
- FY2017: $46,085
- FY2016: $63,812
- FY2015: $198,945
- FY2014: $183,724
- FY2013: $16,779
- FY2012: $213,789
- FY2011: $134,640
- FY2010: $68,976
- FY2009: $127,932
- FY2008: $67,776
Total across 19 fiscal years: $1,617,278
Net de-obligation in that fiscal year (obligations withdrawn).
Top awarding agencies
- Department of Defense$1,160,021, 71.7%
- Smithsonian Institution$307,493, 19.0%
- Department of the Interior$125,625, 7.8%
- Department of Veterans Affairs$18,711, 1.2%
- Department of Health and Human Services$5,428, 0.3%
Top awarding sub-agencies
- Department of the Army$955,522, 59.1%
- Smithsonian Institution$307,493, 19.0%
- Department of the Navy$159,102, 9.8%
- U.S. Geological Survey$125,625, 7.8%
- Defense Logistics Agency$45,396, 2.8%
Top NAICS by obligations
- 541690Other scientific and technical consulting services$691,679, 42.8%
- 562211Hazardous waste treatment and disposal$229,381, 14.2%
- 541620Environmental consulting services$185,253, 11.5%
- 562112Hazardous waste collection$86,163, 5.3%
Top product and service codes by obligations
- R499Support- professional: other$568,868, 35.2%
- J066Maint/repair/rebuild of equipment- instruments and laboratory equipment$272,003, 16.8%
- L066Technical representative- instruments and laboratory equipment$266,003, 16.4%
- L099Technical representative- miscellaneous$94,240, 5.8%
- F107Environmental systems protection- toxic and hazardous substance analysis$78,250, 4.8%
Capabilities
NAICS codes
- 541620Environmental Consulting Services(primary)Small
- 541690Other Scientific and Technical Consulting ServicesSmall
- 562112Hazardous Waste CollectionSmall
- 562211Hazardous Waste Treatment and DisposalSmall
- 562910E
Small: small business for that NAICS, self-certified in SAM.gov registration.
SBA certifications
No certification in the SBA profile data.
Business types self-reported in SAM.gov registration:
- Women-Owned Small Business
- Woman-Owned Business
Product and service codes (PSC)
- 4235Other Services/Supplies
- 6525Other Services/Supplies
- 6665Other Services/Supplies
- H942Quality Control, Testing & Inspection
- L042Technical Representative Services
- Q527Medical Services
Federal Capability Statement
Preparation of License Applications Radiation Safety Programs. Radiation Surveys. Survey meter calibration. Radioanalytical Services (Leak Tests). Transportaion, storage(warehouse), disposal(Decay/Broker) of radioactive materials and waste.
Capabilities & Services
Contracts
Latest awards and orders
- 36C24523P0914Purchase orderDepartment of Veterans AffairsLatest action
- W91ZLK22P0080Purchase orderDepartment of DefenseDepartment of the ArmyLatest action
- N0017317P1164Purchase orderDepartment of DefenseDepartment of the NavyLatest action
- F12CC10333Indefinite delivery contract (IDC)VehicleSmithsonian InstitutionLatest action
- N0017324P1348Purchase orderDepartment of DefenseDepartment of the NavyLatest action
- N0017321P1017Purchase orderDepartment of DefenseDepartment of the NavyLatest action
- N0017323P0076Purchase orderDepartment of DefenseDepartment of the NavyLatest action
- 33312823P00481914Purchase orderSmithsonian InstitutionLatest action
- W91ZLK21P0086Purchase orderDepartment of DefenseDepartment of the ArmyLatest action
- N0017322P1234Purchase orderDepartment of DefenseDepartment of the NavyLatest action
Contact Info
As of . Source: SAM.gov Points of Contact.
SAM.gov registration for RSO, INC. lists a physical address and a separate mailing address, along with 6 verified points of contact. Past Performance contacts are the recommended outreach channel for due-diligence references; Government Business contacts handle procurement-facing correspondence.
Source: SAM.gov entity registration. Contacts displaying numeric or placeholder names have been filtered (defense-in-depth).
Physical Address
5204 MINNICK RD
LAUREL, MD, 20707
USA
Mailing Address
P.O. BOX 1450
LAUREL, MD, 20725
USA
Government Business Contact
STEVE MCDANIEL
PO BOX 1450
LAUREL, MD, 20725
USA
Electronic Business Contact
DAVID WELLNER
PO BOX 1450
LAUREL, MD, 20725
USA
Past Performance Contact
STEVE MCDANIEL
PO BOX 1450
LAUREL, MD, 20725
USA
Government Business Alternate Contact
GREGORY D SMITH
PO BOX 1450
LAUREL, MD, 20725
USA
Electronic Business Alternate Contact
STEVE MCDANIEL
PO BOX 1450
LAUREL, MD, 20725
USA
Past Performance Alternate Contact
0001 562910YY Y
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E&Y
Additional Details
As of . Source: SAM.gov Entity Registration.
RSO, INC. has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires September 4, 2025.
Source: SAM.gov entity registration (FAR responses, registration status). Always verify active exclusions against the authoritative record on SAM.gov before contract award.
Compliance & Risk Assessment
Source: SAM.gov FAR responsesSuspension/Debarment Status
SAM.gov registration reports no active exclusion
Public Display
Entity information is publicly displayed
Disaster Relief Registry
Not registered for disaster relief
Bonding Information
No bonding information provided
EDI
Not declared in SAM.gov
Business Structure
Source: SAM.govRegistration Details
Source: SAM.govInitial Registration
Last Update
Registration Activation
Fiscal Year End
Country of Incorporation
Congressional District
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- Straughan Environmental, Inc.Columbia, MD
- ERG-Terracon JV, L.L.C.Baltimore, MD