Company lists · Data refreshed September 2026

Top 19 Utility infrastructure consulting firms based in Columbus, United States

RevenueBase identified 27 utility infrastructure consulting firms headquartered in Columbus, United States as of September 2026 and tracks 1,041 professional contacts across them, including 573 with verified work emails. Across the United States, Houston is the largest hub for this category (180 companies); Columbus has 27.

This list covers utility infrastructure consulting firms headquartered in Columbus, 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 29, 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 29, 2026 86% judged on-target in blind review
27Companies
1,041Contacts tracked
573Verified emails
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The 19 largest utility infrastructure consulting firms based in Columbus, United States

Ranked by team size
Top 19 of 27 utility infrastructure consulting firms based in Columbus, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to utility infrastructure consulting firms: 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
1Indirect evidenceColumbus, OH, United StatesHQ checked Sep 29, 2026201-500337 contacts →

Indirect evidence

“At EMH & T, we leverage our many areas of expertise, our strong and long-lasting relationships, and our passion for finding answers to deliver the solutions our clients need has…”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceColumbus, OH, United StatesHQ checked Sep 29, 2026201-500159 contacts →

Partial evidence

“Resource International, Inc.(Rii) has been serving communities since 1973 as a female- and family-owned engineering consulting firm headquartered in Columbus, Ohio.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceColumbus, OH, United StatesHQ checked Sep 29, 202651-200131 contacts →

Partial evidence

“Founded in 1964, Korda is a multidisciplinary engineering firm headquartered in Columbus, OH, providing full consulting engineering services.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceColumbus, OH, United StatesHQ checked Sep 29, 202651-20075 contacts →

Indirect evidence

“Founded in 1998, Advanced Engineering Consultants (AEC) specializes in providing mechanical, electrical, plumbing, fire protection and technology engineering design services.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceColumbus, OH, United StatesHQ checked Sep 29, 202651-20070 contacts →

Indirect evidence

“Paul J.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceColumbus, OH, United StatesHQ checked Sep 29, 202611-5047 contacts →

Indirect evidence

“At Dynotec, we specialize in delivering comprehensive Civil A/E/C services, including Architecture, Structural Engineering, Transportation Engineering, Water Resource Engineering…”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceColumbus, OH, United StatesHQ checked Sep 29, 2026201-50037 contacts →

Partial evidence

“River Consulting was acquired by Matrix PDM Engineering in December 2017, bringing its leading mid-major A/E to global energy, food, process and industrial its current and new…”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceColumbus, OH, United StatesHQ checked Sep 29, 202611-5034 contacts →

Indirect evidence

“A great company is defined by its work.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceColumbus, OH, United StatesHQ checked Sep 29, 202611-5031 contacts →

Partial evidence

“Ventura Engineering is a 45‐person full service consulting engineering firm offering services to industrial, commercial, and public clients.”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceColumbus, OH, United StatesHQ checked Sep 29, 202611-5023 contacts →

Partial evidence

“In 1984, Joyce Johnson established CAD Concepts, Inc.(the CCI in CCI Engineering Services) as a consulting enterprise.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceColumbus, OH, United StatesHQ checked Sep 29, 202611-5020 contacts →

Partial evidence

“The CEC Group was established to provide innovative and cost-effective engineered solutions, with respect to mechanical and electrical infrastructure systems, in the building…”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceColumbus, OH, United StatesHQ checked Sep 29, 202611-5012 contacts →

Partial evidence

“Metro CD Engineering is an award-winning engineering consulting firm that is passionate about "Engineering a Greener Tomorrow.Today." Metro CD Engineering is a socially…”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceColumbus, OH, United StatesHQ checked Sep 29, 202611-5011 contacts →

Indirect evidence

“Owner Advisor | Design | Construction Management | Tunnels | WTP | WWTP | Collection | Distribution | Rehab | Water | Wastewater | Stormwater”

Source: RevenueBase Database · checked Sep 29, 2026
14Strong evidenceColumbus, OH, United StatesHQ checked Sep 29, 2026201-5007 contacts →

Strong evidence

“Delphi Infrastructure Group (DIG) is a leading specialty contractor providing repair, replacement, and maintenance services for utility customers across the gas, electrical…”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceColumbus, OH, United StatesHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Donahue IDEAS, LLC is an Ohio-based civil engineering firm that provides services in planning, research, design, construction administration assistance and asset management for…”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceColumbus, OH, United StatesHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“Structural engineering & architectural consulting and inspections firm for commercial, industrial, residential, and public works projects including water and wastewater treatment…”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceColumbus, OH, United StatesHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

“Unfortunately, if you are located in a state with the luxury of a deregulated energy market, you have inevitably been accosted by companies pitching temporary minute savings on…”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceColumbus, OH, United StatesHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

“AMS is an engineering and design firm providing complete energy solutions to business customers.”

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceColumbus, OH, United StatesHQ checked Sep 29, 20261-102 contacts →

Partial evidence

“Proudly located in the recently renovated Columbus Idea Foundry in historic Franklinton, Affinity Infrastructure is eager to bring innovative ideas and a modern approach to…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 19 of 27 utility infrastructure consulting firms based in Columbus, United States

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Utility infrastructure consulting firms based in Columbus, United States at a glance

As of Sep 29, 2026
55.0%Verified-email coverage
38.6Average contacts per company
11-50Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
8
11-50
11
51-200
4
201-500
4

Email recency for this list is measured across the whole United States list rather than for Columbus, so it is reported there. Company counts and contact totals on this page are exact for Columbus, over 27 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 utility infrastructure consulting firms, 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 Columbus, United States whose own description of what they do matches “utility infrastructure consulting firms”. 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 utility infrastructure consulting firms), 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 utility infrastructure consulting firms, and records with no verified work email. Companies headquartered outside Columbus 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, 573 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 29, 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.

Utility infrastructure consulting firms 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 utility infrastructure consulting firms, 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 utility infrastructure consulting firms are there based in Columbus, United States?

RevenueBase identified 27 utility infrastructure consulting firms headquartered in Columbus, 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?

Emh&t, headquartered in Columbus, tops this list with the largest team on record.

Which city in the United States has the most utility infrastructure consulting firms?

Houston leads the United States with 180 headquartered companies, followed by New York (103) and Austin (83). Columbus has 27.

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 573 verified decision-maker contacts tracked across these 27 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 29, 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.