SLSCO
SLSCO LTD is a privately held construction, disaster response, federal services, and health and humanitarian firm serving U.S. federal, state, and local government agencies, allied foreign governments, and public housing authorities through competitive government contracts and rapid mobilization capabilities.
- Company typePrivate
- Founded1995
- HeadquartersGalveston, United States
- Headcount51–100
- GTM typeB2B
- OfferingServices
What SLSCO does
SLSCO LTD is a privately held, multi-disciplinary construction, disaster response, federal services, and health and humanitarian company headquartered in Galveston, Texas. Founded in 1995, the firm operates through four core service lines: Construction (general contracting and design-build across commercial, industrial, infrastructure, housing, justice, educational, modular, and correctional projects); Disaster Response (emergency sheltering, base camps, field hospitals, mass population care, catering, and rapid mobilization); Federal Services (fast-track and design-build construction for the Federal government, including military installations and border infrastructure); and Health and Humanitarian (medical staffing, alternate care sites, mobile clinics, vaccination programs, and humanitarian shelter operations). The company is led by Co-President and Partner Johnny Sullivan and maintains sub-brands including SLS Health and the Community Modernization Group (CMG) joint initiative.
SLSCO generates revenue primarily through competitive bidding on federal, state, and local government contracts, with no consumer-facing pricing. Revenue streams are diversified across three professional-services lines: federal government contracting (IDIQ contracts with the U.S. Navy, USACE, DHS/CBP, and allied foreign governments), state and local government services (disaster response, emergency sheltering, and humanitarian services), and construction and housing recovery (general contracting for public housing authorities and disaster recovery programs). Major contract awards include a $239 million RAAF Base Darwin project in Australia (April 2025), the $400+ million Nostrand Houses modernization in Brooklyn (July 2025), the $167 million Rio Grande Valley border wall project, and participation in the U.S. Navy's $15 billion Guam Build IDIQ and the WEXMAC TITUS program (a $45 billion ceiling vehicle with 109 awarded companies). The firm operates across the United States, Puerto Rico, Australia, Canada, and the Caribbean, with no disclosed proprietary technology platform or AI/ML capabilities; its competitive differentiation rests on regulatory clearances, government past-performance credentials, and rapid mobilization capabilities (15-hour average disaster response time).
SLSCO firmographics
Firmographics- Name
- SLSCO
- Legal name
- SLSCO LTD.
- Website
- https://slsco.com
- Company type
- Private
- Founded year
- 1995
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- SLSCO LTD is a privately held construction, disaster response, federal services, and health and humanitarian firm serving U.S. federal, state, and local government agencies, allied foreign governments, and public housing authorities through competitive government contracts and rapid mobilization capabilities.
- Ownership category
- akta.pro rank
SLSCO industry classification
Industry- Product category
- Government Construction & Disaster Response Services
- NAICS
- Emergency and Other Relief Services (62423), Community Food and Housing, and Emergency and Other Relief Services (6242), Emergency and Other Relief Services (624230), Community Housing Services (62422)
- SIC
- Services-Social Services (8300), Services-Management Services (8741)
- akta.pro primary industry
- Disaster Response & Search and Rescue (SAR) (BPADADAA)
- akta.pro secondary industries
- Disaster Response Coordination & Incident Command (EOC/ICS) (HLAJAGAB), Emergency Response & Search-and-Rescue (SAR) (BPAGAAAA), Water, Sanitation & Hygiene (WASH) Emergency Services (BPAGAAAE)
Keywords
Where SLSCO is headquartered
LocationHeadquarters
- HQ city
- Galveston
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
SLSCO business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales, Technology or R&D
Revenue model
- Federal Government Contracting: SLSCO generates revenue through large-scale federal government contracts for military construction, border infrastructure, and defense support services. This includes IDIQ (Indefinite Delivery Indefinite Quantity) contracts with the U.S. Navy and other defense agencies.
- State and Local Government Services: Revenue from disaster response, emergency sheltering, health and humanitarian services contracts with state emergency management agencies and local governments across North America.
- Construction and Housing Recovery: General contracting and construction management services for commercial, industrial, infrastructure, housing recovery, and public housing projects.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Government contract pricing - no public tiers |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
SLSCO product offering
Product offeringCore offering
SLSCO LTD is a multi-disciplinary construction, disaster response, federal services, and health & humanitarian company that provides general contracting, construction management, infrastructure, emergency response, and humanitarian services to government and private-sector clients across North America and beyond. Its service portfolio spans commercial/industrial/housing construction, rapid disaster mobilization (sheltering, base camps, field hospitals, mass care), fast-track federal design-build (military installations, border infrastructure), and large-scale medical staffing and public-health emergency operations.
Product overview
SLSCO LTD is a multi-disciplinary construction, disaster response, and humanitarian services company operating throughout North America and beyond. The company offers four core service lines: Construction (general contracting, infrastructure, and design-build services), Disaster Response (emergency sheltering, base camps, and rapid deployment services), Federal Services (military installation, border infrastructure, and government contracting), and Health & Humanitarian (medical staffing, alternate care sites, and population care). These services are delivered through numerous project-specific engagements including housing recovery programs, field hospitals, border wall construction, military base improvements, and humanitarian shelters. The portfolio includes major government contracts for housing recovery in Puerto Rico, California, and North Carolina; border infrastructure projects in Texas and California; COVID-19 response including field hospitals and vaccination programs; and ongoing federal military construction in Guam and Australia.
Differentiator
Problem solved
Functional benefit
Brands
- Community Modernization Group (CMG): A joint initiative led by SLS for public housing modernization projects, including the $400+ million Nostrand Houses renovation in Brooklyn, NY.
- SLS Health
Products and services
- Construction
Quantifiable outcome
- Average 15-hour disaster response time
- +8 more outcomes
Companies that use SLSCO
Customer profileNamed customers13 records
Segments6 records
Ideal customer profiles4 records
SLSCO technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
SLSCO partnerships and signals
Strategic signalScale indicators15 records
Recent moves6 records
Expansion highlights5 records
SLSCO competitors and assessment
Company assessmentDirect peers
- Chenega Corporation: Chenega is an Alaska Native-owned federal contractor providing emergency response, base operations, healthcare staffing, and language services. Overlaps with SLSCO on HHS/medical staffing (Missouri, Oregon), HERRC-style humanitarian sheltering, and military support services.
- IAP World Services: IAP provides disaster response, humanitarian relief, logistics, and base operations support to U.S. federal agencies. It is among the closest direct competitors to SLSCO's disaster response and federal services business, mirroring the integrated base-camp, sheltering, and emergency-services model.
- CALIBRE Systems: CALIBRE is a private federal services firm specializing in disaster recovery, installation management, and contingency operations for DoD and civilian federal agencies. CALIBRE's CDBG-DR, FEMA, and federal installation management work directly overlaps with SLSCO's public-housing modernization, disaster response, and federal services divisions.
Broad incumbents
- Parsons Corporation: Parsons is a publicly traded defense, intelligence, and federal infrastructure contractor providing military construction, environmental remediation, and critical-infrastructure services. Competes with SLSCO on DoD installation support, USACE work, and border/infrastructure programs.
- KBR Inc. KBR is a large publicly traded government services and federal construction contractor delivering military construction, logistics, and humanitarian support to DoD, NASA, and allied governments. As a broad incumbent, KBR competes with SLSCO on IDIQ ceilings (similar to WEXMAC TITUS) and disaster-response task orders at significantly larger scale.
- Tetra Tech: Tetra Tech is a publicly traded consulting and engineering firm with a substantial federal disaster recovery, FEMA public assistance, and CDBG-DR grant management practice. As a competitor and sometimes subcontractor partner, Tetra Tech occupies adjacent space in CDBG-DR housing recovery and disaster response.
- AECOM: AECOM is a global infrastructure and federal services firm that delivers military construction, disaster recovery, and emergency field hospital programs (jointly with USACE on projects like SUNY Westbury referenced in SLSCO's data). AECOM competes with SLSCO on large federal contracts across NAVFAC, USACE, and DHS where SLSCO serves as subcontractor or prime.
- Fluor Corporation: Fluor is a major publicly traded engineering, procurement, fabrication, and construction firm with a large federal services and military construction division. Fluor competes with SLSCO for DoD, Department of State, and allied-foreign-government construction and contingency operations contracts.
- PAE (Pacific Architects & Engineers): PAE delivers expeditionary logistics, base operations support, and contingency services to DoD, DHS, and allied governments worldwide. Competes with SLSCO on overseas contingency operations, embassy compounds, and humanitarian logistics.
Emerging players
- Hagerty Consulting: Hagerty provides emergency management, disaster recovery, and FEMA public assistance consulting to state and local governments. They are a partial-overlap competitor in the FEMA/CDBG-DR housing recovery and emergency-management services space where SLSCO is active.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
SLSCO social profiles
Digital presenceSLSCO financial estimates
Financial estimateRevenue estimate
Valuation estimate
SLSCO leadership team
Management profileNumber of profiles
Profiles1 record
SLSCO funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SLSCO M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SLSCO
What does SLSCO do?
SLSCO LTD is a multi-disciplinary construction, disaster response, federal services, and health & humanitarian company that provides general contracting, construction management, infrastructure, emergency response, and humanitarian services to government and private-sector clients across North America and beyond. Its service portfolio spans commercial/industrial/housing construction, rapid disaster mobilization (sheltering, base camps, field hospitals, mass care), fast-track federal design-build (military installations, border infrastructure), and large-scale medical staffing and public-health emergency operations.
Is SLSCO a public or private company?
SLSCO is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was SLSCO founded?
SLSCO was founded in 1995. It employs 51 to 100 people.
Where is SLSCO based?
SLSCO is headquartered in Galveston, United States, in the North America region.
How does SLSCO make money?
Three revenue lines are on record. Federal Government Contracting is the primary driver. The others are state and Local Government Services and construction and Housing Recovery.
Who are SLSCO's main competitors?
Direct peers on record are Chenega Corporation, IAP World Services and CALIBRE Systems. Broad incumbents are Parsons Corporation, KBR Inc., Tetra Tech, AECOM, Fluor Corporation and PAE (Pacific Architects & Engineers). Hagerty Consulting is listed as an emerging player.
Does SLSCO have an API?
No public API is recorded for SLSCO.
What industry is SLSCO in?
SLSCO's product category is Government Construction & Disaster Response Services. Its primary akta.pro industry code is BPADADAA, Disaster Response & Search and Rescue (SAR), with a secondary code of HLAJAGAB, Disaster Response Coordination & Incident Command (EOC/ICS). Its NAICS code is 62423 and its SIC code is 8300.