Company lists · Data refreshed September 2026

Top 24 Engineering consultancies based in Centennial, United States

RevenueBase identified 30 engineering consultancies headquartered in Centennial, United States as of September 2026 and tracks 921 professional contacts across them, including 348 with verified work emails. Houston is the largest hub.

This list covers engineering consultancies headquartered in Centennial, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 24, 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 24, 2026 86% judged on-target in blind review
30Companies
921Contacts tracked
348Verified emails
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The 24 largest engineering consultancies based in Centennial, United States

Ranked by team size
Top 24 of 30 engineering consultancies based in Centennial, United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to engineering consultancies: 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
1Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 202651-200383 contacts →

Partial evidence

“Founded in 1973, JR Engineering has established itself as a premier, privately held civil engineering and surveying consulting firm.”

Source: RevenueBase Database · checked Sep 24, 2026
2Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 202651-200121 contacts →

Partial evidence

“Halker Consulting provides custom engineered and configured services in Project Assessment and Planning, Engineering and Design, & Consulting and Implementation Guidance.”

Source: RevenueBase Database · checked Sep 24, 2026
3Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 202611-5068 contacts →

Partial evidence

“HCL Engineering & Surveying, LLC (HCL) is an established multi-disciplinary engineering, land surveying, and architectural firm offering comprehensive civil engineering and…”

Source: RevenueBase Database · checked Sep 24, 2026
4Indirect evidenceCentennial, CO, United StatesHQ checked Sep 24, 202651-20064 contacts →

Indirect evidence

“Questions Answered.”

Source: RevenueBase Database · checked Sep 24, 2026
5Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 202611-5064 contacts →

Partial evidence

“In business for over 22 years, ICON Engineering is one of Denver’s most reputable planning, design, and project management civil engineering firms.”

Source: RevenueBase Database · checked Sep 24, 2026
6Indirect evidenceCentennial, CO, United StatesHQ checked Sep 24, 202651-20048 contacts →

Indirect evidence

“Geocal, Inc.”

Source: RevenueBase Database · checked Sep 24, 2026
7Indirect evidenceCentennial, CO, United StatesHQ checked Sep 24, 202611-5032 contacts →

Indirect evidence

“Let's talk about your goals.”

Source: RevenueBase Database · checked Sep 24, 2026
8Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 202611-5027 contacts →

Partial evidence

“AEi Systems is an engineering analysis firm whose customers include nearly all the world’s leading aerospace/defense, automotive and IC manufacturers.”

Source: RevenueBase Database · checked Sep 24, 2026
9Indirect evidenceCentennial, CO, United StatesHQ checked Sep 24, 202611-5020 contacts →

Indirect evidence

“Cesare, Inc.”

Source: RevenueBase Database · checked Sep 24, 2026
10Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 202611-5019 contacts →

Partial evidence

“EMK Consultants, Inc, is a professional engineering and surveying corporation serving the needs of the land development community in the Denver Metropolitan area and Colorado…”

Source: RevenueBase Database · checked Sep 24, 2026
11Indirect evidenceCentennial, CO, United StatesHQ checked Sep 24, 202651-20015 contacts →

Indirect evidence

“Specializing in structural concrete and heavy civil for water/wastewater, storm infrastructure, transportation infrastructure, and energy infrastructure markets.”

Source: RevenueBase Database · checked Sep 24, 2026
12Indirect evidenceCentennial, CO, United StatesHQ checked Sep 24, 202611-507 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 24, 2026
13Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 20261-106 contacts →

Partial evidence

“We’re a structural engineering firm focused on practical, buildable solutions for residential and commercial projects.”

Source: RevenueBase Database · checked Sep 24, 2026
14Indirect evidenceCentennial, CO, United StatesHQ checked Sep 24, 20261-106 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 24, 2026
15Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 20261-105 contacts →

Partial evidence

“TSR Solutions specializes in Project Management and Automation Engineering Consulting.”

Source: RevenueBase Database · checked Sep 24, 2026
16Indirect evidenceCentennial, CO, United StatesHQ checked Sep 24, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 24, 2026
17Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 202611-504 contacts →

Partial evidence

“J3 Engineering Consultants provides technical and professional engineering services for civil infrastructure, development and water projects in a fast-paced and highly competitive…”

Source: RevenueBase Database · checked Sep 24, 2026
18Indirect evidenceCentennial, CO, United StatesHQ checked Sep 24, 202651-2003 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 24, 2026
19Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 20261-102 contacts →

Partial evidence

“Legacy Consulting Engineers' goal is excellence in engineering and commitment to customer service.”

Source: RevenueBase Database · checked Sep 24, 2026
20Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 20261-102 contacts →

Partial evidence

“For over 18 years, Integral Engineering Co.”

Source: RevenueBase Database · checked Sep 24, 2026
21Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 20261-102 contacts →

Partial evidence

“Pericle Communications Company is a nationally recognized consulting engineering firm specializing in wireless communications.”

Source: RevenueBase Database · checked Sep 24, 2026
22Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 20261-102 contacts →

Partial evidence

“Roth Engineering Group, LLC provides civil engineering services for private land developers and public infrastructure projects.”

Source: RevenueBase Database · checked Sep 24, 2026
23Indirect evidenceCentennial, CO, United StatesHQ checked Sep 24, 20261-101 contacts →

Indirect evidence

“Residential Architecture”

Source: RevenueBase Database · checked Sep 24, 2026
24Partial evidenceCentennial, CO, United StatesHQ checked Sep 24, 20261-101 contacts →

Partial evidence

“Zuefeldt Design is an architectural consulting firm that provides a variety of architecture, engineering and construction technology solutions.”

Source: RevenueBase Database · checked Sep 24, 2026

Showing 24 of 30 engineering consultancies based in Centennial, United States

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Engineering consultancies based in Centennial, United States at a glance

As of Sep 24, 2026
37.8%Verified-email coverage
30.7Average contacts per company
1-10Median size (employees)
2073.3%Largest-city concentration · Houston
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
15
11-50
9
51-200
6

Email recency for this list is measured across the whole United States list rather than for Centennial, so it is reported there. Company counts and contact totals on this page are exact for Centennial, over 30 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 engineering consultancies, 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 Centennial, United States whose own description of what they do matches “engineering consultancies”. 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 engineering consultancies), 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 engineering consultancies, and records with no verified work email. Companies headquartered outside Centennial 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, 348 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 24, 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.

Engineering consultancies by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its 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 the category the list is about. Each row is rated strong evidence when the company's own description names engineering consultancies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many engineering consultancies are there based in Centennial, United States?

RevenueBase identified 30 engineering consultancies headquartered in Centennial, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

JR Engineering, headquartered in Centennial, tops this list with the largest team on record.

Which city has the most engineering consultancies?

Houston leads with 622 headquartered companies, followed by New York (449) and Austin (208).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 348 verified decision-maker contacts tracked across these 30 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 24, 2026.

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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.