John Jacobs
John Jacobs is a small business in Green Bay, WI registered on SAM.gov to bid on federal contracts. It has won about $5,000 in federal prime contracts as a small business since fiscal year 2024, according to USAspending.gov.
- UEI
- ZB3JKY54TB43
- CAGE code
- 4ZEV2
- SAM.gov registration
- Active
Federal contract history
Contract history from USAspending.gov is taking longer than usual to load. It will appear here in a moment, or when you reload the page in a few minutes.
Registration details
Show registration details
From SAM.gov's monthly public file dated Nov 1, 2026. If the business has updated its registration since, SAM.gov shows the newer details.
| Legal business name | John Jacobs |
|---|---|
| Unique Entity ID (UEI) | ZB3JKY54TB43 |
| CAGE code | 4ZEV2 |
| Location | Green Bay, WI |
| SAM.gov registration | Active through Oct 4, 2027 |
| Business started | 1992 |
| Primary NAICS code | 541715: Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) |
| How to contact | No phone or email in SAM.gov's public file. Search UEI ZB3JKY54TB43 in SBA's Small Business Search for a contact the business added. |
Certifications and business types
No SBA certification (8(a), HUBZone or WOSB) in SAM.gov's public file (Nov 1, 2026).
SBA certifications let a business compete for set-aside contracts (set-asides explained). Check the current record on its SAM.gov entry.
How to check or correct this record
The file sometimes leaves a certification out, and a newer one won't be in it yet.
Check or correct this record at the source: open its SAM.gov entry, or search UEI ZB3JKY54TB43 () in SAM.gov's entity search (free sign-in) and in SBA's Small Business Search (formerly DSBS), which shows SBA certifications. The business can update its details in its SAM.gov registration and its certifications at certifications.sba.gov.
NAICS codes John Jacobs is small under
On its SAM.gov registration, John Jacobs meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
Open contracts in John Jacobs's NAICS codes
224 open federal opportunities on SAM.gov use one of John Jacobs's NAICS codes and may be open to it: no set-aside, or, in the codes it is registered small under, a small business set-aside. Here are a few, those in its primary code first (none of these are in Wisconsin right now), then the soonest due.
- Aircraft Defensive Electro-optical Protection Technologies (ADEPT)
✦ Required first step for solicitation FA2377-26-R-B011, due November 6, 2026, 12:00 PM Eastern: email the contracting contacts your CAGE (Commercial and Government Entity) code to…
Due in 2 daysNov 9, 2026, 2:00 PM ESTThe AI summary flags this date. Check SAM.gov.
- Protein Palace Proposers Day
Event or sign-up Nov 9, 2026An event or its sign-up, not a bid deadline.
- Timed Emitters Transmitting Highly Energized Radiation (TETHER)
✦ Sources sought notice N00173-27-RFI-EN01: the Naval Research Laboratory (NRL), part of the Department of the Navy, asks firms to show they can do research and development on…
Due in 2 daysNov 9, 2026, 4:00 PM EST
- Fast Assessment of Solutions, Therapeutics, Pharmaceuticals, and SupplieS (FASTPASS) Innovative Solutions Opening
✦ Solution Summary slides are due September 21, 2026, and a presentation is required before a full proposal; the response due date is November 10, 2026, 4:00 PM Eastern.
Due in 3 daysNov 10, 2026, 4:00 PM EST
- Collaboration Opportunity: Efficient Adsorptive Recovery of HREEs and Critical Minerals from Coal Derivatives
Due in 3 daysNov 10, 2026, 5:00 PM EST
Similar small businesses
Other small businesses of a similar size with the same primary NAICS code (541715) that have won federal contracts in Wisconsin and nearby states:
- Ninjas Printing, Inc, Middleton, WI
- Intraband, LLC, Madison, WI
- Lumimove Inc, Oak Creek, WI
- Exo-Atmospheric Technologies LLC, Waukesha, WI
- Virtual EM Inc., Ann Arbor, MI
- Wolverine Radar Company, Ann Arbor, MI
Is this your business? Get a reminder before the SAM.gov registration expires
Get a reminder before the SAM.gov registration expires. It's active through Oct 4, 2027. We'll email you 60, 30 and 7 days ahead, and if it lapses.
Frequently asked questions
What is John Jacobs's CAGE code?
John Jacobs's CAGE code is 4ZEV2. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is John Jacobs's UEI?
John Jacobs's Unique Entity ID (UEI) is ZB3JKY54TB43. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is John Jacobs's SAM.gov registration active?
Yes, as of SAM.gov's public data from Nov 1, 2026, John Jacobs's registration is active through Oct 4, 2027. Registrations are renewed every year.
Is John Jacobs a small business?
John Jacobs is registered on SAM.gov as small under 2 NAICS codes, including its primary code, 541715. Size is set per NAICS code, so a business can be small for some contracts and not others.
Keep going
- Look up another business's CAGE code or UEI
- Check a SAM.gov registration's status
- How to become a government subcontractor
- Hiring subcontractors? List small businesses by state, NAICS code and certification
Registration details come from SAM.gov's public entity extract and contract figures from USAspending.gov. Contact names and street addresses are left out. To change these details, update the registration on SAM.gov. To report a mistake on this page, or to ask us to remove it, email hello@fedready.us with the page address; we reply within 2 business days. For a removal, write from an address at the company.