Gradeline Construction Company, Inc.

Contractor in Middle River, MD.

Gradeline Construction Company, Inc. appears in Maryland license records as a contractor based in Middle River, MD. The record lists a OSHA_Establishment license (#OSHA-149865c28eafb5).

Hiring a contractor in Middle River? Compare quotes from 3 verified contractors in your area — free, no obligation, ~60 seconds.
Get free quotes →
Unclaimed listing. Are you Gradeline Construction Company, Inc.? Claim it free →

About this contractor

License type
OSHA_Establishment
License #
OSHA-149865c28eafb5
Classification
Asphalt paving (i.e., highway, road, street, public sidewalk)
Service area
Middle River, MD 21220

Information sourced from public state license records — not yet verified by the business owner. Always confirm credentials before hiring.

Is this your business?

This listing was created from public license records. The owner hasn’t claimed it yet — claim it now and we’ll build you a free professional website at bidroom.io/pro/gradeline-construction-company-inc.

  • Free professional website with photos, services, and booking
  • Matched job leads in Middle River — no per-lead fees
  • Verified-pro badge on your profile
  • Use your own domain (yourbusiness.com) on Pro plan
Claim this profile — Free
No credit card · 60 seconds · You stay in control
← Back to Contractor in Middle River

🔒See Gradeline Construction Company, Inc.'s phone, email & website — free

Contact info is revealed to anyone with a free Bidroom account. Create yours to unlock contact details across the Bidroom directory — then subscribe if you'd like to message verified pros directly inside the app.

Create a free account Or subscribe to message in-app

Verify Gradeline Construction Company, Inc. before you hire

Check license #OSHA-149865c28eafb5 on the Maryland licensing authority lookup and the BBB the day you hire; status can change after Bidroom's last import (2026-05-02).

Frequently asked about Gradeline Construction Company, Inc.

What does Gradeline Construction Company, Inc. do?

Gradeline Construction Company, Inc. is a contractor based in Middle River, Maryland. Their license classification is Asphalt paving (i.e., highway, road, street, public sidewalk).

Is Gradeline Construction Company, Inc. licensed?

Yes. Gradeline Construction Company, Inc. holds Maryland licensing authority license #OSHA-149865c28eafb5. Verify the current status on Maryland licensing authority before hiring.

Where is Gradeline Construction Company, Inc. located?

Gradeline Construction Company, Inc. is based in Middle River, MD 21220.

How do I contact Gradeline Construction Company, Inc.?

Contact information (phone, email, website) is shown to anyone with a free Bidroom account. Create a free account to reveal Gradeline Construction Company, Inc.'s contact details, then subscribe if you'd like to message them in-app.

How do I get a quote from Gradeline Construction Company, Inc.?

The fastest way is to post your project on Bidroom — Gradeline Construction Company, Inc. and up to 2 other verified contractors in Middle River can bid on it, and every quote includes itemized pricing + a written scope of work.

Is Gradeline Construction Company, Inc. verified on Bidroom?

Not yet. This listing was created from public Maryland license records but hasn't been claimed by the owner. The license info above is from official records, but the business hasn't confirmed its services, hours, or current availability with us yet.

This record in Middle River

Hiring a contractor?

Contractor vetting checklist · Cost guide · Look up this license at the state board

Other contractors in Middle River

D&i Contractors, Llc
Middle River, MD · License #BBB-90287000
Unclaimed
Keo Design Group, Llc
Middle River, MD · License #BBB-90377669
Unclaimed
Bar-lin Construction, Llc
Middle River, MD · License #PHIPERMIT-019206
Unclaimed
Lee Foundation Co., Inc.
Middle River, MD · License #OSHA-815a47195f77ad
Unclaimed
Bluestone Communications, Inc.
Middle River, MD · License #OSHA-98e76880da5b3b
Unclaimed
Hatzel & Buehler, Inc.
Middle River, MD · License #OSHA-6d9727b578a518
Unclaimed
View all contractors in Middle River →

Other trades hiring in Middle River

Are you Gradeline Construction Company, Inc.?Claim this profile free and we'll build you a professional website at bidroom.io/pro/gradeline-construction-company-inc — photos, services, online booking, your own domain.
Claim free →