Company lists · Data refreshed September 2026

Top 21 Construction companies based in Rockville, United States

Name: Construction companies based in Rockville, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 45 companies tracked

RevenueBase lists 45 construction companies based in Rockville, United States, with 1,821 business contacts and 810 email addresses, as of September 2026. New York is the single most-represented city among the companies on this list. Use the directory to research construction providers and identify relevant business contacts.

Construction companies plan, manage, and carry out building, renovation, civil engineering, infrastructure, and related construction work for commercial, residential, industrial, and public-sector projects. This list covers companies that provide construction, building, renovation, site development, infrastructure, or related project services. Ranked by team size, largest first. Data current as of September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

45Companies

1,821Contacts tracked

810Verified emails

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The 21 largest construction companies based in Rockville, United States

Ranked by team size

Top 21 of 45 construction companies based in Rockville, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to construction companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	James G. Davis Construction Davis	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	201-500	593 contacts →
	“Recognized and ranked as a leading general contractor and employer, we have built our business around five core values: Trust, Excellence in Service, Inclusion, Integrity, and…” Source: company website · checked Sep 6, 2026
2	Grunley Construction Company, INC	Strong evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	201-500	340 contacts →
	“Grunley Construction Co.” Source: company website · checked Sep 6, 2026
3	KDB Mechanical LLC	Strong evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	501-1,000	195 contacts →
	“We are a full service engineering and construction company with unparalleled experience in commercial, industrial and government projects.” Source: company website · checked Sep 6, 2026
4	HBW Construction	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	51-200	174 contacts →
	“Since 1969, we’ve developed a reputation for our dedication to excellence and for meeting our promises to our clients.” Source: company website · checked Sep 6, 2026
5	Hess Construction	Strong evidence	Rockville, United StatesHQ checked Sep 6, 2026	51-200	112 contacts →
	“Founded in 1978, HESS Construction manages the planning, design, and construction of facilities for public and private clients in Maryland, Washington, D.C.” Source: company website · checked Sep 6, 2026
6	Doyle Construction Company	Strong evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	51-200	111 contacts →
	“Founded in 2008, Doyle Construction Company provides general contracting, construction management, and design-build project delivery in the Retail+Fitness, Self Storage…” Source: company website · checked Sep 6, 2026
7	Forrester Construction	Strong evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	51-200	100 contacts →
	“Established in 1988, Forrester Construction is an award-winning general contractor offering clients construction management, preconstruction, and design-build services.” Source: company website · checked Sep 6, 2026
8	Hubert Construction LLC	Strong evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	11-50	37 contacts →
	“Hubert Construction is an award winning General Contractor, Design Builder and Construction Manager specializing in superior client service and performance during both…” Source: company website · checked Sep 6, 2026
9	Eichberg Construction, INC	Strong evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	51-200	16 contacts →
	“Eichberg Construction (ECI) is a mid-sized construction firm incorporated in April of 1974 by John Eichberg.” Source: company website · checked Sep 6, 2026
10	Equality Builders LLC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	201-500	12 contacts →
	“Equality Builders is a full turn company specializing in apartment renovation.” Source: company website · checked Sep 6, 2026
11	THS Construction Company	Strong evidence	Rockville, VA, United StatesHQ checked Sep 6, 2026	11-50	12 contacts →
	“THS Construction Company is a general contractor in Rockville, VA.” Source: company website · checked Sep 6, 2026
12	D2 LLC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	11-50	11 contacts →
	“D2, LLC is the leading woman-owned Site Work company.” Source: company website · checked Sep 6, 2026
13	LEE HY Construction	Strong evidence	Rockville, VA, United StatesHQ checked Sep 6, 2026	201-500	10 contacts →
	“Lee Hy Construction produces only the highest-quality asphalt to meet your needs.” Source: company website · checked Sep 6, 2026
14	Hann & Hann Construction Services	Strong evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	51-200	8 contacts →
	“We are a prestigious construction company that continues to earn the trust and confidence of our clients by consistently offering quality products and building methods.” Source: company website · checked Sep 6, 2026
15	Outdoor Kitchen Creations	Strong evidence	Rockville, VA, United StatesHQ checked Sep 6, 2026	1-10	7 contacts →
	“Outdoor Kitchen Creations is a construction company based out of 2352 Lanier Rd, Rockville, VA, United States.” Source: company website · checked Sep 6, 2026
16	Donaldson Construction LLC	Indirect evidence	Rockville, VA, United StatesHQ checked Sep 6, 2026	1-10	4 contacts →
	“Licensed & Insured Class A Commercial & Residential General Contractor serving Richmond, VA and surrounding areas” Source: company website · checked Sep 6, 2026
17	Ward Builders, LLC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	11-50	4 contacts →
	“A new company with RICH history.” Source: company website · checked Sep 6, 2026
18	Berd Construction Services	Strong evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	1-10	3 contacts →
	“BERD Construction Services is a full-service construction and renovation firm based in Rockville, MD.” Source: company website · checked Sep 6, 2026
19	Washington International Contractors, INC	Strong evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	1-10	3 contacts →
	“Washington International Contractors Inc (WIC) is a dynamic and diversified construction management and consulting firm employing cutting edge technology to deliver complex and…” Source: company website · checked Sep 6, 2026
20	Cdci INC	Strong evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	11-50	3 contacts →
	“CDCI, Inc, was established in 1985 as a professional design-build construction firm to serve the needs of Government and Commercial agencies within the National Capital Region.” Source: company website · checked Sep 6, 2026
21	Churchill Classics	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	1-10	1 contacts →
	“Churchill Classics (originally Churchill Group) was founded in 1991 by Eric Tovar, a graduate of the University of Baltimore’s Merrick School of Business and lifelong resident of…” Source: company website · checked Sep 6, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: construction companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names construction companies.
Partial evidence: Its own public description names part of construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name construction companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 21 of 45 construction companies based in Rockville, United States

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Construction companies based in Rockville, United States at a glance

As of Sep 6, 2026

44.5%Verified-email coverage

40.5Average contacts per company

11-50Median size (employees)

1897.8%Largest-city concentration · New York

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Rockville, over 45 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among construction companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Rockville, United States whose own description of what they do matches “construction companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names construction companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among construction companies, and records with no verified work email. Companies headquartered outside Rockville are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 810 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Construction companies by metro in the United States

Frequently asked

How many construction companies are based in Rockville, United States?

The directory contains 45 construction companies based in Rockville, United States.

What do construction companies do?

Construction companies plan, manage, and perform building, renovation, infrastructure, and related construction work for clients across multiple sectors.

How can I find contacts at construction companies?

The directory includes 1,821 business contacts and 810 email addresses associated with construction companies.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.