Construction companies · Maryland

Construction companies in Gaithersburg, MD

397 contractors in Gaithersburg with phone numbers, 162 with email addresses. Search the list, unlock the ones you want and start calling today.

Get the Gaithersburg list freeSee a sample
397
businesses
100%
have a phone number
41%
have an email address (162)
—
average Google rating
Sample

A sample of construction companies in Gaithersburg

Twelve of the 397 contractors on the list. Phone numbers and emails unlock in the app — 1 credit per business, both together.

BusinessCategoryRatingWebsitePhoneEmail
Cast Stone DesignsGeneral Contractor—Yes(240) •••-••••Available
Certified Electrical TechnologiesConstruction Supplies Store—Yes(301) •••-••••Available
Hope BuildersCarpenter; Electrician; General Contractor—Yes(301) •••-••••Available
Noble ExteriorsConstruction Supplies Store—Yes(301) •••-••••Available
Alpine ServicesGeneral Contractor—Yes(301) •••-••••Available
Harvey W HottelHome Service; Construction Supplies Store—Yes(240) •••-••••Available
Help ConstructionGeneral Contractor—Yes(301) •••-••••Available
AC Painting and RemodelingConstruction Supplies Store—Yes(301) •••-••••Available
Cryo AssociatesGeneral Contractor—Yes(301) •••-••••Available
K&K Electric LLCConstruction Supplies Store; Lighting Store; Repair Service—Yes(301) •••-••••Available
C & G Carpentry ServiceCarpenter; General Contractor—Yes(301) •••-••••Available
Green TechBathroom Contractor; Deck and Patio Contractor; General Contractor—Yes(301) •••-••••Available

Showing 12 of 397. Data refreshed October 2026.

The market

What Gaithersburg's contractors look like

0% of rated contractors here hold 4.5★ or better — there is room for businesses that push for reviews.
0 carry a perfect 5.0★ rating; 397 have no rating yet — prime prospects for review and reputation services.
85 (21%) have no website listed — a ready-made list for web design and SEO offers.
27% link a Facebook or Instagram page from their listing.

Most common listings

  • General Contractor102
  • Construction Supplies Store89
  • Construction25
  • Carpet and Flooring Contractor18
  • Carpet and Flooring Contractor; General Contractor11
  • General Contractor; Roofer11

Area codes

  • (301)290
  • (240)86
  • (703)6
  • (202)6
  • (855)2
  • (877)2
Playbook

How to sell to contractors in Gaithersburg

This category covers general contractors, renovation firms, builders, excavators and concrete and framing companies. Projects are larger and longer, and the person you need is usually the owner or the estimator.

Who sells to contractors

  • Construction software (estimating, scheduling, takeoffs, project management)
  • Equipment rental and heavy-equipment dealers
  • Building-materials suppliers
  • Bonding, builder's risk and liability insurance
  • Accounting and job-costing firms
  • Subcontractor and trade recruiting

What keeps owners up at night

  • Cash flow between progress payments
  • Bidding accurately and winning the right jobs
  • Coordinating subs and keeping schedules
  • Labour shortages
When to reach themEarly morning, before site visits, or late afternoon. Winter is planning and bidding season in colder markets, which is a good time to sell software and services.
The angle that worksTalk about margin and schedule risk. "How much did your last job overrun?" opens more doors than "we save you time."
Reaching out in the USB2B cold email is governed by CAN-SPAM: honest headers and subject lines, a physical address and an opt-out you honor. Phone outreach has its own rules, especially for cell phones. Read our CAN-SPAM guide and cold-calling rules before you start.
FAQ

Questions about Gaithersburg contractors leads

How many construction companies in Gaithersburg, MD are in the database?
397 construction companies in Gaithersburg, MD, as of October 2026. 397 of them have a phone number and 162 have an email address.
How much does it cost to get these leads?
Every account starts with 25 free credits. Unlocking a contact (phone and email together) costs 1 credit. The Starter plan is $39/month for 2,500 credits — about 1.6¢ a contact — so the whole Gaithersburg list of 397 costs less than one month of Starter. See pricing.
Can I export the list to a dialer or CRM?
Yes. Unlocked contacts export to CSV, Excel or JSON with phone, email, website, address, category and rating, ready for any dialer or CRM.
Where does the data come from?
From public business listings — the same information contractors publish so customers can find them — cleaned, de-duplicated by phone number and refreshed regularly. Businesses can ask to be removed at any time.

Construction companies in other cities

Baltimore, MDRockville, MDSilver Spring, MDColumbia, MDBethesda, MDLaurel, MDGlen Burnie, MDBowie, MDAll construction companies →

Other businesses in Gaithersburg

Dental clinicsMedical clinicsRestaurantsSalons and spasAuto repair shopsReal estate officesFinancial advisors and lendersConsultantsEverything in Gaithersburg →

Start calling Gaithersburg contractors today

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