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Franklin County, Ohio

Licensed Trade Records in Franklin County, Ohio

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Browse 1,888 verified licensed trade contractors registered across Franklin County, Ohio (including Columbus, Dublin, Westerville, Grove City). Every record is compiled from Ohio Construction Industry Licensing Board (OH OCILB) public credential files under Ohio Revised Code Chapter 4740 (Ohio Construction Industry Licensing Board: HVAC, Hydronics, Plumbing, Electrical, and Refrigeration Contractor Licenses).

Official State Authority: Ohio Construction Industry Licensing Board (OH OCILB) Official Registry · County Seat: Columbus

Municipalities in Franklin County (6)

Select a city or town in Franklin County to view local permit guidance and registered licensed trade records:

Columbus 1865Grove City 5Gahanna 4Westerville 4Worthington 4Hilliard 3

1888 licensed trade records · Franklin County, OH

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Public Directory Quality: Official OH OCILB license records across Franklin County · Zero sponsored order · Never sold as a lead · How our data works →

All trades directory — Franklin County

1888 matching records across 6 open municipalities · 25 on this page · Contactable records first, then alphabetical.

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Show registered-address map (25 records on this page)7 approximate areas

Shaded areas mark approximate postal or city locations, not premises or service areas. Circle sizes are illustrative, not postal boundaries. Some records share the same area. Private addresses are excluded.

6ZIP 432156ZIP 432065ZIP 432224ZIP 432012ZIP 432051ZIP 432141ZIP 43202Approximate postal/city centroid schematic (7 areas)

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3d Group Inc

Municipal permit / project record Project evidence only General contracting · City of Columbus Department of Building and Zoning Services

Registered address: 50 S FRONT ST, Columbus, OH 43215

RMST1317421 · Status in source: Permit Issued · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

No public phone or website on record.
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3s Incorporated

Municipal permit / project record Project evidence only General contracting · City of Columbus Department of Building and Zoning Services

Registered address: 200 W NATIONWIDE BLVD, Columbus, OH 43215

FALR1300488 · Status in source: Final Inspection Approved · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

+1 more registration for this business
  • FSUP1300485 · 200 W NATIONWIDE BLVD, Columbus, OH 43215
No public phone or website on record.
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4 Seasons Air LLC

Municipal permit / project record Project evidence only General contracting · City of Columbus Department of Building and Zoning Services

Registered address: 641 REINHARD AVE, Columbus, OH 43206

MMEPR1909201 · Status in source: Final Inspection Approved · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

+1 more registration for this business
No public phone or website on record.
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550 E Town Street Ltd

Municipal permit / project record Project evidence only Landscaping · City of Columbus Department of Building and Zoning Services

Registered address: 550 E TOWN ST, Columbus, OH 43215

RBLD1524554 · Status in source: Permit Issued · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

No public phone or website on record.
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595 E Broad Oh LLC

Municipal permit / project record Project evidence only General contracting · City of Columbus Department of Building and Zoning Services

Registered address: 595 E BROAD ST, Columbus, OH 43215

ALTC1907532 · Status in source: Certificate of Occupancy Issued · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

No public phone or website on record.
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971 Campbell LLC

Municipal permit / project record Project evidence only General contracting · City of Columbus Department of Building and Zoning Services

Registered address: 286 S SOUDER AVE, Columbus, OH 43222

MMEPR1914681 · Status in source: Final Inspection Approved · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

+4 more registrations for this business
No public phone or website on record.
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A & J Plumbing And Mechanical LLC

Municipal permit / project record Project evidence only Plumbing · City of Columbus Department of Building and Zoning Services

Registered address: 1573 E RICH ST, Columbus, OH 43205

MMEPR1712067 · Status in source: Final Inspection Approved · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

+1 more registration for this business
No public phone or website on record.
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A 1 Advanced Plumbing Inc

Municipal permit / project record Project evidence only Plumbing · City of Columbus Department of Building and Zoning Services

Registered address: 993 DENNISON AVE, Columbus, OH 43201

FUEL1529967 · Status in source: Final Inspection Approved · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

+1 more registration for this business
No public phone or website on record.
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A 2nd Estimate Ltd

Municipal permit / project record Project evidence only General contracting · City of Columbus Department of Building and Zoning Services

Registered address: 100 THURMAN AVE, Columbus, OH 43206

RERF1200305 · Status in source: Final Inspection Approved · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

No public phone or website on record.
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A B Plumbing & Contracting LLC

Municipal permit / project record Project evidence only Plumbing · City of Columbus Department of Building and Zoning Services

Registered address: 492 E KOSSUTH ST, Columbus, OH 43206

PLMB1220152 · Status in source: Permit Issued · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

+5 more registrations for this business
No public phone or website on record.
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A Mann Plumbing Ltd

Municipal permit / project record Project evidence only Plumbing · City of Columbus Department of Building and Zoning Services

Registered address: 627 S 3RD ST, Columbus, OH 43206

PMLSC2409260 · Status in source: Final Inspection Approved · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

No public phone or website on record.
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A Sterling Plumbing Sewer & Drains

Municipal permit / project record Project evidence only Plumbing · City of Columbus Department of Building and Zoning Services · Specialty scope: Plumbing, Sewer & Drain

Registered address: 674 STANLEY AVE, Columbus, OH 43206

MMEPR1800082 · Status in source: Final Inspection Approved · Contractor qualification unknown · Source dated 2026-10-20 · Service area not confirmed. · Verify source record →

No public phone or website on record.
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Frequently Asked Questions — Franklin County, OH

How are licensed trade credentials verified in Franklin County, Ohio?

Records across Franklin County are sourced directly from the Ohio Construction Industry Licensing Board (OH OCILB). Ohio Revised Code Chapter 4740 (Ohio Construction Industry Licensing Board: HVAC, Hydronics, Plumbing, Electrical, and Refrigeration Contractor Licenses)

Which municipalities are covered in the Franklin County directory?

Franklin County coverage includes Columbus, Dublin, Westerville, Grove City, Reynoldsburg, Hilliard, Upper Arlington, Gahanna, Worthington, Bexley, with County Seat in Columbus.

Are licensed contractors in Franklin County, OH required to carry insurance and surety bonds?

Yes. Under Ohio licensing authority regulations, licensed trade contractors typically must maintain active Commercial General Liability insurance, appropriate surety bonds, and state Workers' Compensation coverage before pulling municipal permits.

Other Counties in Ohio

Cuyahoga CountyHamilton CountySummit CountyMontgomery CountyLucas CountyStark CountyMahoning CountyRichland County

Before the first call

  • Describe the job and ask whether it is within their scope and service area.
  • Check the credential with its issuing authority and ask what applies where the work will happen.
  • Ask about insurance, availability, who will do the work, and a written scope.
  • Ask about callout fees, labor or fixed rates, materials, cancellation and any estimate charge.
Prepare a project brief

Verification Overview & Key Takeaways: How to Check Official Credentials

HomeCrafto displays source records with different scopes, including licenses, registrations, municipal permits and community records. A source entry is not proof of qualification for your job. Before signing a work order or paying a deposit, homeowners should confirm that the contractor’s credential number is active, verify that the license classification covers the specific trade scope required for the job, and request a current Certificate of Insurance (COI) directly from the issuing insurance carrier. Independent verification protects your property and ensures compliance with local building codes.

How do you verify a contractor license number and insurance on official portals (FAQ)?

You can verify active license standing and consumer protection rules directly through official government portals, including Washington L&I Contractor Verify, the California Contractors State License Board (CSLB), the Connecticut eLicense Portal, USA.gov State Consumer Protection Offices, and FTC Home Improvement Consumer Guidance. Always confirm municipal permit requirements with your local building department before work begins.