SYSTEMS INTEGRATION/MODELING & SIMULATION, INC. (TN)
Registration and award facts
SAM.gov registration as of
- Net obligations since FY2008
- $63.60M
- $63,600,353under this UEI
- FY2026 obligations
- $3.48M†
- $3,477,198Provisional
- Awards and orders
- 39
- with positive net obligations12 IDV vehicles held
- Latest action
- Oct 15, 2026
- SAM.gov registration
- Active
- Registration expiration date Aug 19, 2027
Registration
- Doing business as
- SYSTEMS INTEGRATION
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Business start date
- Aug 1, 1992 (34 years)
- Location
- Tullahoma, TN
- State of incorporation
- Tennessee
- Purpose of registration
- All Awards
- Website
- sim-s.com
† FY2026 obligations (provisional; DoD awards signed after Jul 30, 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 30, 2026 are not yet public.
Source: SAM.gov entity registration and FPDS contract actions recorded under UEI E53LJHJZJQK1. 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: $3,477,198 (provisional)
- FY2025: $3,498,753
- FY2024: $3,488,302
- FY2023: $3,689,277
- FY2022: $1,023,280
- FY2021: $1,826,197
- FY2020: $1,696,609
- FY2019: $1,233,567
Show all 19 yearsEarlier years (FY2008–FY2018)
- FY2018: $1,251,956
- FY2017: $9,526,775
- FY2016: $8,468,675
- FY2015: $6,764,146
- FY2014: $5,701,188
- FY2013: $1,443,656
- FY2012: $2,736,943
- FY2011: $1,160,362
- FY2010: $2,031,663
- FY2009: $2,410,858
- FY2008: $2,170,947
Total across 19 fiscal years: $63,600,353
Top awarding agencies
- Department of Defense$63,336,266, 99.6%
- General Services Administration$264,087, 0.4%
Top awarding sub-agencies
- Department of the Navy$33,757,829, 53.1%
- Department of the Air Force$25,271,043, 39.7%
- Department of the Army$4,391,416, 6.9%
- Federal Acquisition Service$261,587, 0.4%
- Federal Acquisition Service$2,500, <0.1%
Top NAICS by obligations
- 541519Other computer related services$22,704,123, 35.7%
- 561612Security guards and patrol services$16,486,976, 25.9%
- 561621Security systems services (except locksmiths)$9,498,704, 14.9%
- 541330Engineering services$5,102,842, 8.0%
- 517111Wired telecommunications carriers$4,540,997, 7.1%
Top product and service codes by obligations
- R425Support- professional: engineering/technical$22,442,536, 35.3%
- R430Support- professional: physical security and badging$10,656,664, 16.8%
- J058Maint/repair/rebuild of equipment- communication, detection, and coherent radiation equipment$8,918,954, 14.0%
- DG01IT and telecom - network support services (LABOR)$4,543,497, 7.1%
- D304IT and telecom- telecommunications and transmission$3,459,980, 5.4%
Capabilities
NAICS codes
- 541512Computer Systems Design Services(primary)Small
- 541511Custom Computer Programming ServicesSmall
- 541614Process, Physical Distribution, and Logistics Consulting ServicesSmall
- 541330Military and Aerospace Equipment and Military WeaponsSmall
- 561621Security Systems Services (except Locksmiths)Small
- 541513Computer Facilities Management ServicesSmall
Show all 17 NAICS codes11 more NAICS codes
- 541519Other Computer Related ServicesSmall
- 561611Investigation and Personal Background Check ServicesSmall
- 561421Telephone Answering ServicesSmall
- 561612Security Guards and Patrol ServicesSmall
- 561210Facilities Support ServicesSmall
- 541490Other Specialized Design ServicesSmall
- 541690Other Scientific and Technical Consulting ServicesSmall
- 561110Office Administrative ServicesSmall
- 611420Computer TrainingSmall
- 541611Administrative Management and General Management Consulting ServicesSmall
- 541618Other Management Consulting ServicesSmall
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:
- Minority-Owned Business
- Black American Owned
- Self Certified Small Disadvantaged Business
Federal Capability Statement
As a mature company with two GSA schedules, SIM&S has significant experience supporting telecommunications and IT programs, administrative services efforts, and security services contracts for government and commercial entities.
Capabilities & Services
Contracts
Latest awards and orders
- 47QRCA25DSB41Indefinite delivery contract (IDC)VehicleGeneral Services AdministrationFederal Acquisition ServiceLatest action
- GS07F0011VFederal supply schedule (FSS)VehicleGeneral Services AdministrationFederal Acquisition ServiceLatest action
- 80TECH26D1245Government-wide acquisition contract (GWAC)VehicleNational Aeronautics and Space AdministrationLatest action
- N0016423D1024Indefinite delivery contract (IDC)VehicleDepartment of DefenseDepartment of the NavyLatest action
- W91RUS23D0007Indefinite delivery contract (IDC)VehicleDepartment of DefenseDepartment of the ArmyLatest action
- N0017819D8626Indefinite delivery contract (IDC)VehicleDepartment of DefenseDepartment of the NavyLatest action
- N6523622F0355Delivery orderunder a federal supply schedule (FSS)Department of DefenseDepartment of the NavyLatest action
- N0016426FC048Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the NavyLatest action
- N0016425FC505Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the NavyLatest action
- N0016424FC013Delivery orderunder an indefinite delivery contract (IDC)Department of DefenseDepartment of the NavyLatest action
Contact Info
As of . Source: SAM.gov Points of Contact.
SAM.gov registration for SYSTEMS INTEGRATION/MODELING & SIMULATION, INC. lists a physical address and a separate mailing address, along with 5 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
400 SW ATLANTIC ST
TULLAHOMA, TN, 37388
USA
Mailing Address
400 SW ATLANTIC ST
TULLAHOMA, TN, 37388
USA
Government Business Contact
Joseph C London
400 SW Atlantic Street
Tullahoma, TN, 37388
USA
Electronic Business Contact
Eugene R London Jr
President/CEO
400 SW Atlantic Street
Tullahoma, TN, 37388
USA
Past Performance Contact
Joseph London
Assistant CEO
400 SW Atlantic Street
Tullahoma, TN, 37388
USA
Government Business Alternate Contact
Joseph C London
Business Development Officer
400 SW Atlantic Street
Tullahoma, TN, 37388
USA
Past Performance Alternate Contact
Alicia Whitaker
Subcontract Specialist
400 SW Atlantic Street
Tullahoma, TN, 37388
USA
Additional Details
As of . Source: SAM.gov Entity Registration.
SYSTEMS INTEGRATION/MODELING & SIMULATION, INC. has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires August 19, 2027.
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
Registered for disaster relief contracting
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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