Henry Spencer Banzhaf

Raleigh, NC

UEI
VDYTNDRES115
CAGE
66PA1
Primary NAICS
541690 Other Scientific and Technical Consulting Services
SAM.gov registration
Active through

Company facts

Self-certified in SAM.gov
  • For Profit Organization
Entity structure
Sole Proprietorship
SAM.gov registration date
Physical address
121 Lake Boone Trail, Raleigh, NC 27608, USA

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 $0
FY2025 $30,370
FY2024 $163,737
FY2023 $13,000

Contract awards

Award Agency Obligated Awarded
Expert witness 15JENR25P00000085 Environment and Natural Resources Division (OBD) $144,134
Expert witness 15JENR25P00000083 Environment and Natural Resources Division (OBD) $194,158
Expert witness 15JENR22P00000225 Environment and Natural Resources Division (OBD) $386,205
Expert witness 15JENR22P00000219 Environment and Natural Resources Division (OBD) $34,145
Expert witness 15JENR21P00000274 Environment and Natural Resources Division (OBD) $103,008

Latest 5 listed here. See the rest on GovTribe.

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About the company

Henry Spencer Banzhaf is a sole proprietorship based in Raleigh, North Carolina, registered in SAM.gov since November 2010, with registration valid through December 2025. As a for-profit organization, Banzhaf specializes in providing expert witness services, primarily in the environmental litigation domain. The entity has established a significant professional presence in federal contracting, particularly with the U.S. Department of Justice's Environment and Natural Resources Division, demonstrating substantial expertise in supporting complex legal proceedings related to environmental matters.

Between 2020 and 2024, Henry Spencer Banzhaf has been awarded multiple purchase order contracts totaling over $800,000 from the Department of Justice's Environment and Natural Resources Division. These contracts, ranging from $48,375 to $386,205, are exclusively for expert witness services in environmental litigation. None of the contracts were set aside for specific business types, indicating Banzhaf competed for these awards in an open market. The contracts have performance periods extending from 2021 to 2029, with specific completion dates ranging from April 2024 to February 2029. Each contract is structured as a purchase order and focuses on providing specialized expert testimony and advisory services related to environmental legal matters. The consistent engagement by the Environment and Natural Resources Division suggests Banzhaf offers highly specialized and valued expertise in supporting the agency's legal work involving natural resources and environmental protection issues.

Quick answers

Is Henry Spencer Banzhaf registered in SAM.gov?

Yes. Henry Spencer Banzhaf's SAM.gov registration is active through October 19, 2027.

How much has Henry Spencer Banzhaf received in federal contracts?

Federal contracts obligated $30,370 to Henry Spencer Banzhaf in fiscal year 2025 and $207,107 in fiscal years 2023 through 2027.

What is Henry Spencer Banzhaf's most recent federal award?

Henry Spencer Banzhaf's most recent federal contract award is Expert witness (15JENR25P00000085), from Environment and Natural Resources Division (OBD), on December 27, 2024.

On GovTribe

See Henry Spencer Banzhaf's full federal record

  • Federal contract awards
  • Funding analysis by agency, NAICS and set-aside
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