DELON HAMPTON & ASSOCIATES, CHARTERED (DC)
Registration and award facts
SAM.gov registration as of
- Net obligations since FY2008
- $63.23M
- $63,226,454under this UEI
- FY2026 obligations
- $8.89M†
- $8,893,968Provisional
- Awards and orders
- 37
- with positive net obligations8 IDV vehicles held
- Latest action
- Oct 19, 2026
- SAM.gov registration
- Active
- Registration expiration date Jun 4, 2027
Registration
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Business start date
- Jan 18, 1973 (53 years)
- Location
- Washington, DC
- State of incorporation
- District of Columbia
- Purpose of registration
- All Awards
- Website
- delonhampton.com
† FY2026 obligations (provisional; DoD awards signed after Aug 7, 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 Aug 7, 2026 are not yet public.
Source: SAM.gov entity registration and FPDS contract actions recorded under UEI WEVGDL9MNU17. 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: $8,893,968 (provisional)
- FY2025: $4,330,744
- FY2024: $1,568,433
- FY2023: $6,722,343
- FY2022: $3,152,132
- FY2021: $2,508,540
- FY2020: $4,762,382
- FY2019: $1,688,910
Show all 18 yearsEarlier years (FY2008–FY2018)
- FY2018: $2,308,345
- FY2016: $8,051,559
- FY2015: $2,546,093
- FY2014: $497,779
- FY2013: $4,592,425
- FY2012: $1,828,811
- FY2011: $1,350,000
- FY2010: $1,500,000
- FY2009: $3,675,491
- FY2008: $3,248,500
Total across 18 fiscal years: $63,226,454
Top awarding agencies
- Department of Transportation$54,898,496, 86.8%
- Department of Defense$5,079,458, 8.0%
- General Services Administration$3,248,500, 5.1%
Top awarding sub-agencies
- Federal Transit Administration$54,898,496, 86.8%
- Department of the Army$5,079,458, 8.0%
- Public Buildings Service$3,248,500, 5.1%
Top NAICS by obligations
- 541330Engineering services$8,327,958, 13.2%
Top product and service codes by obligations
- R408Support- professional: program management/support$54,329,122, 85.9%
- C219Architect and engineering- general: other$5,079,458, 8.0%
- AD66Construction (management/support)$3,000,000, 4.7%
- AJ46Engineering (management/support)$569,375, 0.9%
- R425Engineering and technical services$248,500, 0.4%
Capabilities
NAICS codes
- 541330Engineering Services(primary)
- 236116New Multifamily Housing Construction (except For-Sale Builders)Small
- 236210Industrial Building ConstructionSmall
- 236220Commercial and Institutional Building ConstructionSmall
- 237110Water and Sewer Line and Related Structures ConstructionSmall
- 237310Highway, Street, and Bridge ConstructionSmall
Show all 11 NAICS codes5 more NAICS codes
- 237990Other Heavy and Civil Engineering Construction
- 541611Administrative Management and General Management Consulting ServicesSmall
- 541620Environmental Consulting ServicesSmall
- 541690Other Scientific and Technical Consulting ServicesSmall
- 541990All Other Professional, Scientific, and Technical 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
- Self Certified Small Disadvantaged Business
- DOT Certified DBE
- Black American Owned
Product and service codes (PSC)
- C1AAARCHITECT AND ENGINEERING- CONSTRUCTION: OFFICE BUILDINGS
- C1FBARCHITECT AND ENGINEERING- CONSTRUCTION: RECREATIONAL BUILDINGS
- C1FZARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER RESIDENTIAL BUILDINGS
- C1GZARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER WAREHOUSE BUILDINGS
- C1JZARCHITECT AND ENGINEERING- CONSTRUCTION: MISCELLANEOUS BUILDINGS
- C1NZARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER UTILITIES
- R425SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL
Federal Capability Statement
Professional Civil & Structural Engineering Services plus Construction & Program Management Service
Capabilities & Services
Contracts
Latest awards and orders
- 69319524D000008Indefinite delivery contract (IDC)VehicleDepartment of TransportationFederal Transit AdministrationLatest action
- 69319525F30133NDelivery orderunder an indefinite delivery contract (IDC)Department of TransportationFederal Transit AdministrationLatest action
- 69319519F300106Delivery orderunder an indefinite delivery contract (IDC)Department of TransportationFederal Transit AdministrationLatest action
- 69319525F30002NDelivery orderunder an indefinite delivery contract (IDC)Department of TransportationFederal Transit AdministrationLatest action
- 69319526F30041NDelivery orderunder an indefinite delivery contract (IDC)Department of TransportationFederal Transit AdministrationLatest action
- W912DR23D0004Indefinite delivery contract (IDC)VehicleDepartment of DefenseDepartment of the ArmyLatest action
- 69319525F30062NDelivery orderunder an indefinite delivery contract (IDC)Department of TransportationFederal Transit AdministrationLatest action
- 0003Delivery orderunder a basic ordering agreement (BOA)Department of TransportationFederal Transit AdministrationLatest action
- DTFT6014D00013Basic ordering agreement (BOA)VehicleDepartment of TransportationFederal Transit AdministrationLatest action
- 69319519D000025Indefinite delivery contract (IDC)VehicleDepartment of TransportationFederal Transit AdministrationLatest action
Contact Info
As of . Source: SAM.gov Points of Contact.
SAM.gov registration for DELON HAMPTON & ASSOCIATES, CHARTERED 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 without a real name are not shown.
Physical Address
900 7TH ST NW STE 800
WASHINGTON, DC, 20001
USA
Mailing Address
900 7TH ST NW STE 800
WASHINGTON, DC, 20001
USA
Government Business Contact
Vonetta N Osborne
Executive Assistant
900 7TH STREET NW
SUITE 800
WASHINGTON, DC, 20001
USA
Electronic Business Contact
Mamo Assefa
President & Chairman of the Board
8403 Colesville Road
Suite 1525
Silver Spring , MD, 20910
USA
Past Performance Contact
Mamo Assefa
President & Chairman Of the Board
8403 Colesville Road
Suite 1525
Silver Spring, MD, 20910
USA
Government Business Alternate Contact
Mamo Assefa
President & Chairman Of the Board
8403 Colesville Road
SUITE 1525
Silver Spring, MD, 20910
USA
Past Performance Alternate Contact
Douglas Nauman
VP Transit Practice Leader
8403 Colesville Road
SUITE 1525
Silver Spring, MD, 20910
USA
Additional Details
As of . Source: SAM.gov Entity Registration.
DELON HAMPTON & ASSOCIATES, CHARTERED has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires June 4, 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
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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