Hsg, LLC
Merritt Island, FL Doing business as Herndon Solutions Group
- UEI
- W9SABN4VVAG4
- CAGE
- 5M1T8
- Primary NAICS
- 541620 Environmental Consulting Services
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
-
- 115310 Support Activities for Forestry
- 541110 Offices of Lawyers
- 541310 Architectural Services
- 541330 Engineering Services
- 541350 Building Inspection Services
- 541370 Surveying and Mapping (except Geophysical) Services
- 541380 Testing Laboratories and Services
- 541512 Computer Systems Design Services
Show all 33
- 541519 Other Computer Related Services
- 541611 Administrative Management and General Management Consulting Services
- 541614 Process, Physical Distribution, and Logistics Consulting Services
- 541618 Other Management Consulting Services
- 541690 Other Scientific and Technical Consulting Services
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- 541990 All Other Professional, Scientific, and Technical Services
- 561210 Facilities Support Services
- 561990 All Other Support Services
- 562910 Remediation Services
- 611430 Professional and Management Development Training
- 611620 Sports and Recreation Instruction
- 621111 Offices of Physicians (except Mental Health Specialists)
- 621112 Offices of Physicians, Mental Health Specialists
- 621330 Offices of Mental Health Practitioners (except Physicians)
- 621340 Offices of Physical, Occupational and Speech Therapists, and Audiologists
- 621399 Offices of All Other Miscellaneous Health Practitioners
- 621498 All Other Outpatient Care Centers
- 621999 All Other Miscellaneous Ambulatory Health Care Services
- 622110 General Medical and Surgical Hospitals
- 624190 Other Individual and Family Services
- 624230 Emergency and Other Relief Services
- 713940 Fitness and Recreational Sports Centers
- 713990 All Other Amusement and Recreation Industries
- 812990 All Other Personal Services
- SAM.gov registration date
- Physical address
- 1353 N Courtenay Pkwy y, Merritt Island, FL 32953, USA
- Website
- herndon-group.com
- Founded
- 2008
- Employees
- 51-250
- Estimated annual revenue
- $10M-$50M
- Industry
-
- Industrials
- Commercial & Professional Services
- Professional Services
- Consulting
- SIC code
- 89 Services, Not Elsewhere Classified
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 | $4,965,430 |
| FY2025 | $10,581,572 |
| FY2024 | $7,463,457 |
| FY2023 | $7,003,618 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | National Aeronautics and Space Administration | $3,172,574 | |
| 2 | Air Force | $1,264,567 | |
| 3 | Department of the Interior | $419,208 | |
| 4 | Defense Health Agency | $108,582 | |
| 5 | Missile Defense Agency | $500 |
Contract vehicles
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Bechtel National, Inc. | 80KSC019C0013 | $69,098 | |
| General Dynamics Information Technology, Inc. | 68HERC25F0082 | $35,000 | |
| Netcentric Technology, LLC | FA252124F0146 | $32,000 | |
| Bastion Technologies, Inc. | 80GRC024DA004 | $13,537,174 | |
| Netcentric Technology, LLC | FA252124F0146 | $32,000 |
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Straughan Environmental Services Inc. | Columbia, MD | 541620 Environmental Consulting Services |
| Avanti Corporation | Alexandria, VA | 541620 Environmental Consulting Services |
| GCI | Boca Raton, FL | 541330 Engineering Services |
| Neptune And Company, Incorporated | Lakewood, CO | 541620 Environmental Consulting Services |
| GSE Inc. | Trinity, AL | 562910 Remediation Services |
About the company
Hsg, LLC (doing business as Herndon Solutions Group) is a woman-owned small business based in Merritt Island, Florida, that delivers environmental site assessments, occupational health and medical services, environmental compliance audits, and technical consulting to federal agencies primarily as a prime contractor (98% of recent awards), with a small subcontracting footprint under defense primes. The vendor is woman-owned and carries SBA designations as a small disadvantaged business; it competes across both set-aside (Total Small Business, 8(a) sole source) and full-and-open categories, with set-asides accounting for roughly one-third of its visible contract awards.
Hsg's customer footprint is heavily concentrated in two agencies. NASA Kennedy Space Center dominates by potential value—28 awards carrying $347.3 million combined ceiling, representing 68% of the vendor's total contract value—while the Department of Interior Bureau of Land Management National Office anchors volume with 45 awards worth $39.9 million. Together, these two customers account for 84% of combined potential value across the portfolio. The Environmental Protection Agency Region 9 ($16.3 million across 8 awards) and NASA Langley Research Center ($14.7 million across 29 awards) round out the top tier. The concentration at NASA Kennedy reflects Hsg's dominant position on the $321.5 million NEMCON (NASA Environmental and Medical Contract) IDV—a single-award small business vehicle that has generated 115 task orders worth $59.6 million in combined potential value. Hsg also holds a $7.5 million U.S. Forest Service Rocky Mountain Region BPA for CERCLA environmental response actions, a $4.9 million Department of Interior multiple-award BPA for environmental services, and placement on GSA's Multiple Award Schedule with 60 task orders totaling $53.7 million.
Recent activity shows decline: annual award counts dropped from 46 in 2023 to 29 in 2024, 25 in 2025, and 10 through September 2026. Only 14 awards (combined potential value $3.1 million) face ultimate completion within the next twenty-four months, creating minimal near-term recompete exposure but signaling a runway of extended task order durations. Hsg's capability portfolio is narrow and specialized: environmental due diligence documentation, Phase I/II environmental site assessments, occupational health and medical services (including employee assistance programs, industrial hygiene, health physics), hazardous materials management, CERCLA screenings and monitoring, and wildlife/ecological surveys. Named representative work includes a $10.5 million NEMCON task order for environmental and occupational health services at NASA Stennis Space Center through September 2030, a $19.7 million NEMCON order for occupational health services at NASA Marshall Space Flight Center through September 2030, a $4.28 million Langley Research Center delivery order for environmental support services through September 2025, and $363 thousand for environmental technical support at the Formosa Mine Superfund Site under GSA MAS.
Hsg operates predominantly as a prime builder of its own delivery teams; across SCI-reportable prime service contracts, the vendor self-performed 77% of contractor hours with 23% subcontracted. The SCI dataset shows volatility: $3 million invoiced in FY2022 across 10.9 FTEs, climbing to $11.8 million in FY2023 across 28.1 FTEs, dropping to negligible FY2024 activity, then recovering to $771 thousand in FY2025 across 11.7 FTEs. Government-paid median rates on federal services work run around $115.69 per hour, with senior labor (90th percentile) priced through $252.58 per hour. The vendor's GSA Schedule labor portfolio spans 34 categories from Recreation Aide ($31.98/hr, high school education) through Principal Manager ($331.08/hr, master's degree required), covering environmental technicians, scientists, engineers, regulatory specialists, and program management roles with no security-cleared positions offered. Hsg operates as a subcontractor to defense primes on specialized support: Bechtel National (industrial hygiene for SLS Mobile Launcher 2), General Dynamics Information Technology (cybersecurity branch support), and Netcentric Technology (Cape Launch Operations and Infrastructure Support). In December 2025, Hsg was awarded a $151 billion multiple-award IDIQ under the Missile Defense Agency's SHIELD (Scalable Homeland Innovative Enterprise Layered Defense) program through December 2035—a substantial expansion beyond its traditional environmental and occupational health profile into advanced defense system development, integration, and modernization.
SBA capabilities narrative
HSG was founded in 2008 to provide environmental services, emergency response planning, and sustainability management. Through a plan of steady growth, HSG has expanded its core services to include occupational and environmental health, fitness, injury rehabilitation, and employee assistance programs. We provide innovative services and solutions, tailored specifically to our customers' needs, while minimizing organizational risks.
Quick answers
Is Hsg, LLC registered in SAM.gov?
Yes. Hsg, LLC's SAM.gov registration is active through April 9, 2027.
Which contract vehicles does Hsg, LLC hold?
Hsg, LLC holds a place on 3 federal contract vehicles, including MAS, SHIELD and PSS.
How much has Hsg, LLC received in federal contracts?
Federal contracts obligated $10,581,572 to Hsg, LLC in fiscal year 2025 and $30,014,077 in fiscal years 2023 through 2027.
How does Hsg, LLC rank among federal contractors?
Hsg, LLC ranked #22 in NAICS 54162 and #78 in PSC B510 in FY2025.
What is Hsg, LLC's most recent federal award?
Hsg, LLC's most recent federal contract award is Search support for california potentially responsible parties on abandoned mine sites (140D0426F1054), from Interior Business Center (DO), on September 8, 2026.
On GovTribe
See Hsg, LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors