Federal contractor profile

MASTERCLOCK, INC.

UEI SXT8K5HELZE8CAGE 1GZF9Company website ↗

Active
Small Business

Overview

Legal name
MASTERCLOCK, INC.
Registered location
SAINT CHARLES, MO, USA
Website
Company website ↗
Primary NAICS
334220 — Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
Latest award activity
Aug 28, 2025
Read company summary

MASTERCLOCK, INC. is associated with UEI SXT8K5HELZE8 and CAGE 1GZF9 in public federal records. AcornBids currently links 1 prime award totaling $21.5K in obligations to this entity. Its largest recorded federal customer by obligations is Department of Justice. Its recorded federal awards include work classified as Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 334220 (Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing). Its public SAM.gov registration lists SAINT CHARLES, MO, USA.

At a glance

Lifetime prime obligations$21.5K
Prime awards1
Awards with future end dates0
Top-agency concentration
Not available

Why this customer concentration

Detailed agency totals are not available in this stored profile.

Largest positive coded-agency total ÷ all positive coded-agency totals × 100

Missing data is shown as unavailable.

Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Oct 17, 2026. Refresh pending; these totals may be out of date.

Business information

Public SAM.gov registration details.

Legal name
MASTERCLOCK, INC.
UEI
SXT8K5HELZE8
CAGE
1GZF9
Registered address
2484 W CLAY ST, SAINT CHARLES, MO, 63301, USA
Registration status
Active
Primary NAICS
334220 — Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
SAM activation
Feb 9, 2026
Initial registration
Jan 7, 2002
Entity start
Dec 24, 1994
SAM updated
Feb 9, 2026
Registration expires
Feb 5, 2027
Fiscal year end
Dec 31
Place of incorporation
MO, USA

View SAM.gov source

Research brief

Source facts

  • Loaded prime-award records link 1 awards and $21,533 in reported obligations to this legal entity. Source
  • Recorded awards include Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing (NAICS 334220); this classification is not proof of every company capability. Source
  • An example award describes: ANTENNAS Source

Federal award analysis

Net transaction obligations by federal fiscal period.

Selected transaction obligations$21.5K
Prime contracts

Reported transaction obligations by federal fiscal period; includes deobligations. Missing transactions are not estimated. Histories follow awards currently assigned to this recipient and may include transactions under an earlier recipient. Coverage: 1 of 1 selected awards. Select a period to explore its awards.

Recent federal awards

Prime contract awards. Select an award to review its history and source evidence.

Award / descriptionAwarding agencyObligationsStart dateEnd date
15DDST25P00000094ANTENNASDepartment of Justice$21.5KAug 28, 2025Oct 30, 2025

Registration, certifications & contacts

Registration evidenceDate
SAM updatedFeb 9, 2026
Source loadedSep 26, 2026
Initial registrationJan 7, 2002
Entity startDec 24, 1994

Registration classifications: Small Business. These are separate from the reported certificates above.

IndustryReported size status
334118 — Computer Terminal and Other Computer Peripheral Equipment ManufacturingNot reported
334220 — Radio and Television Broadcasting and Wireless Communications Equipment ManufacturingNot reported
334418 — Printed Circuit Assembly (Electronic Assembly) ManufacturingNot reported
334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument ManufacturingNot reported
334513 — Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process VariablesNot reported
334515 — Instrument Manufacturing for Measuring and Testing Electricity and Electrical SignalsNot reported
334519 — Other Measuring and Controlling Device ManufacturingNot reported
ContactRolePublished contact methodsEvidenceSource date
ALEX PERSONSGovernment businessContact method not publishedSAM registrationNot available
ALEX PERSONSElectronic businessContact method not publishedSAM registrationNot available
Registered industries
  • 334118 — Computer Terminal and Other Computer Peripheral Equipment Manufacturing
  • 334220 — Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
  • 334418 — Printed Circuit Assembly (Electronic Assembly) Manufacturing
  • 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
  • 334513 — Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
  • 334515 — Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
  • 334519 — Other Measuring and Controlling Device Manufacturing

Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source

Related companies worth researching

Explore the customer, work and award-size evidence behind each match.

ATLANTIC SIGNAL LLC

1 shared agency customer(s); Shared work: 334220 — Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing; Average reported award size within 0.5–2× in matching records. Counts and amounts describe sampled matching awards, not the company’s full history.
1 awards

AARDVARK

1 shared agency customer(s); Shared work: 334220 — Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing; Average reported award size within 0.5–2× in matching records. Counts and amounts describe sampled matching awards, not the company’s full history.
1 awards

CALLYO 2009 CORP

1 shared agency customer(s); Shared work: 334220 — Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing; Average reported award size within 0.5–2× in matching records. Counts and amounts describe sampled matching awards, not the company’s full history.
15 awards

BLACK BOX SAFETY, INC

1 shared agency customer(s); Shared work: 334220 — Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing; Average reported award size within 0.5–2× in matching records. Counts and amounts describe sampled matching awards, not the company’s full history.
1 awards

INSTRUMENT CALIBRATION SOLUTIONS, LLC

1 shared agency customer(s); Shared work: 334220 — Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing; Average reported award size within 0.5–2× in matching records. Counts and amounts describe sampled matching awards, not the company’s full history.
2 awards

TEN-8 FIRE & SAFETY LLC

1 shared agency customer(s); Shared work: 334220 — Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing; Average reported award size within 0.5–2× in matching records. Counts and amounts describe sampled matching awards, not the company’s full history.
1 awards

About MASTERCLOCK, INC.

What products and services appear in its federal awards?

Recorded award industries: 334220 — Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing.

Recorded products and services: 5985 — Antennas, Waveguide, and Related Equipment.

Examples from recent award records:

These records describe federal award work, not every company capability. Review the award evidence.

Where is the company registered?

2484 W CLAY ST, SAINT CHARLES, Missouri 63301, United States

Registered location from SAM.gov; award performance locations may differ.

Explore related contractor directories

Browse companies by registered location, primary registered industry, or federal customer.

Data coverage and methodology

Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.

Disclosed relationships only. Missing records do not establish that a contractor has no partners. Ambiguous parent award identifiers are excluded.

Keep your research moving

Save this company, track changes, and evaluate upcoming work against your targets.

Save to my research Find my fit