Pendulum Instruments Inc.
Redwood City, CA
- UEI
- T4HYM36MLDH7
- CAGE
- 8AM30
- Primary NAICS
- 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- SAM.gov registration date
- Physical address
- 1123 Madison Ave, Redwood City, CA 94061, USA
- Website
- pendulum-instruments.com
- Founded
- 2007
- Employees
- 11-50
- Estimated annual revenue
- $50M-$100M
- Industry
-
- Industrials
- Capital Goods
- Industrial Conglomerates
- Industrials & Manufacturing
- SIC code
- 38 Instruments & Related Products
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 | $19,330 |
| FY2025 | $4,630 |
| FY2024 | $32,377 |
| FY2023 | $64,060 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Air Force | $19,330 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Defense Systems And Solutions | W58RGZ23F0068 | $31,990 | |
| Defense Systems And Solutions | W58RGZ20F0216 | $31,990 | |
| Defense Systems And Solutions | W58RGZ23F0068 | $47,985 |
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About the company
Pendulum Instruments Inc., a foreign-owned for-profit manufacturer based in Redwood City, California, supplies high-precision time and frequency measurement instruments to the federal government as a prime contractor (79% of recent awards), competing on a full-and-open basis without set-asides. The company specializes in rubidium frequency counters, atomic clocks, and electronic test equipment for military metrology and calibration applications, with work concentrated in NAICS 541712 (Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals).
Customer concentration is heavily weighted toward the Department of the Air Force. The Air Force Materiel Command's Warner Robins Air Logistics Complex accounts for six awards with $134 thousand in combined potential value, driven by sole-source procurements for CNT-91R/AF rubidium frequency counters and repair services for the 802d and 402nd Maintenance Support Groups at Robins Air Force Base. The Department of the Navy Naval Supply Systems Command, the second-largest customer by dollar value, holds a single-award indefinite-delivery contract valued at $541,275 through May 2028 for electronic counters supporting Navy and Marine Corps operations, with delivery orders placed against it (most recently a $4,630 order in October 2024). The Naval contract alone represents 73% of Pendulum's combined potential value across all recent federal awards. Secondary customers include NASA's Shared Services Center (two awards, $48 thousand) for rubidium clock procurement and the Air Force (one award, $19 thousand) for a CNT-91R/AF counter. Top awards include the $541,275 Navy IDIQ (June 1, 2023), a $64,060 Air Force purchase order for Pendulum parts (May 1, 2023), and a $32,057 sole-source delivery of two rubidium counters to Warner Robins (December 8, 2023).
Activity has been episodic — one award in 2021, three in 2022, five in 2023, two in 2024, and one in 2026 — with only two awards (combined potential value $24 thousand) reaching ultimate completion in the next twenty-four months. Pendulum also operates as a subcontractor to Defense Systems and Solutions on three sub awards related to Portable Automatic Test Equipment Calibrator (PATEC) materials and component service assessments for fielded Saudi Royal Air Force equipment. The Navy IDIQ represents Pendulum's primary vehicle position; task orders under it and under another firm-fixed-price IDC (SPRMM123DWT02) constitute the majority of recent ordering activity. Combined obligated dollars across all awards total $323 thousand against $752 thousand in combined potential value.
Quick answers
Is Pendulum Instruments Inc. registered in SAM.gov?
Yes. Pendulum Instruments Inc.'s SAM.gov registration is active through February 3, 2027.
How much has Pendulum Instruments Inc. received in federal contracts?
Federal contracts obligated $4,630 to Pendulum Instruments Inc. in fiscal year 2025 and $120,397 in fiscal years 2023 through 2027.
What is Pendulum Instruments Inc.'s most recent federal award?
Pendulum Instruments Inc.'s most recent federal contract award is Pendulum CNT-91R/AF universal counter (FA857126P0060), from Air Force Sustainment Center (AFMC), on May 18, 2026.
On GovTribe
See Pendulum Instruments Inc.'s full federal record
- Federal contract awards
- IDV awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors