Company lists · Data refreshed November 2026

Top 8 Construction companies based in Norwalk, United States

RevenueBase lists 26 construction companies based in Norwalk, United States, with 1,773 business contacts and 94 email addresses, as of November 2026. Use the directory to research construction providers and identify relevant business contacts. Across the United States, New York is the largest hub for this category (831 companies); Norwalk has 26.

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 November 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 Nov 6, 2026 86% judged on-target in blind review
26Companies
1,773Contacts tracked
94Verified emails
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The 8 largest construction companies based in Norwalk, United States

Ranked by team size
Top 8 of 26 construction companies based in Norwalk, United States, ranked by team size, largest first. Data refreshed Nov 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceNorwalk, CT, United StatesHQ checked Nov 6, 202610001+1,493 contacts →

Strong evidence

“A Fortune 500® company and a member of the S&P 500, EMCOR Group, Inc.(NYSE: EME) is a leader in mechanical and electrical construction, industrial and energy infrastructure, and…”

Source: RevenueBase Database · checked Nov 6, 2026
2Indirect evidenceNorwalk, CA, United StatesHQ checked Nov 6, 202651-200111 contacts →

Indirect evidence

“Doty Bros.”

Source: RevenueBase Database · checked Nov 6, 2026
3Strong evidenceNorwalk, CT, United StatesHQ checked Nov 6, 202651-20030 contacts →

Strong evidence

“AMEC offers synergetic construction services that save our clients time and money.”

Source: RevenueBase Database · checked Nov 6, 2026
4Indirect evidenceNorwalk, CT, United StatesHQ checked Nov 6, 202611-5024 contacts →

Indirect evidence

“A.”

Source: RevenueBase Database · checked Nov 6, 2026
5Indirect evidenceNorwalk, CT, United StatesHQ checked Nov 6, 202651-2005 contacts →

Indirect evidence

“Celebrating 43 years in business, Shoreline Painting & Drywall Inc.”

Source: RevenueBase Database · checked Nov 6, 2026
6Indirect evidenceNorwalk, CT, United StatesHQ checked Nov 6, 20261-103 contacts →

Indirect evidence

“We have been building homes in the Fairfield County area for over 20 years.”

Source: RevenueBase Database · checked Nov 6, 2026
7Indirect evidenceNorwalk, OH, United StatesHQ checked Nov 6, 202611-501 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 6, 2026
8Strong evidenceNorwalk, CT, United StatesHQ checked Nov 6, 20261-101 contacts →

Strong evidence

“Regency Construction is a 25+-year-old family-owned business founded and operated in Fairfield County, CT, by Franco DiDemetrio.”

Source: RevenueBase Database · checked Nov 6, 2026

Showing 8 of 26 construction companies based in Norwalk, United States

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Construction companies based in Norwalk, United States at a glance

As of Nov 6, 2026
5.3%Verified-email coverage
68.2Average contacts per company
11-50Median size (employees)
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
8
11-50
10
51-200
5
10001+
1

Email recency for this list is measured across the whole United States list rather than for Norwalk, so it is reported there. Company counts and contact totals on this page are exact for Norwalk, over 26 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 Norwalk, 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 Norwalk 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, 94 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 November 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 Norwalk, United States?

The directory contains 26 construction companies based in Norwalk, 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 1,773 business contacts and 94 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.