Company lists · Data refreshed September 2026

Top 16 Infrastructure consulting firms based in Columbus, United States

RevenueBase identified 41 infrastructure consulting firms headquartered in Columbus, United States as of September 2026 and tracks 2,008 professional contacts across them, including 811 with verified work emails. New York is the largest hub.

This list covers 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
41Companies
2,008Contacts tracked
811Verified emails
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The 16 largest infrastructure consulting firms based in Columbus, United States

Ranked by team size
Top 16 of 41 infrastructure consulting firms based in Columbus, United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names infrastructure consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Emh&tIndirect evidence
Columbus, OH, United StatesHQ checked Sep 3, 2026201-500334

“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: company website · checked Sep 3, 2026
2Columbus, OH, United StatesHQ checked Sep 3, 2026201-500155

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

Source: company website · checked Sep 3, 2026
3
Korda Nemeth EngineeringPartial evidence
Columbus, OH, United StatesHQ checked Sep 3, 202651-200129

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

Source: company website · checked Sep 3, 2026
4Columbus, OH, United StatesHQ checked Sep 3, 202651-20046

“Compass Infrastructure Group offers civil engineering design and project management services, specializing in bridge and highway design, inspections, constructability and other…”

Source: company website · checked Sep 3, 2026
5
River Consulting, LLCPartial evidence
Columbus, OH, United StatesHQ checked Sep 3, 2026201-50037

“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: company website · checked Sep 3, 2026
6
Ventura Engineering, INCPartial evidence
Columbus, OH, United StatesHQ checked Sep 3, 202611-5031

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

Source: company website · checked Sep 3, 2026
7
Moody EngineeringIndirect evidence
Columbus, OH, United StatesHQ checked Sep 3, 202611-5027

“Moody Engineering is an experienced team of civil engineers.”

Source: company website · checked Sep 3, 2026
8
Rieth Jones AdvisorsIndirect evidence
Columbus, OH, United StatesHQ checked Sep 3, 202611-5022

“RJA was founded with the intent to do things differently.”

Source: company website · checked Sep 3, 2026
9Columbus, OH, United StatesHQ checked Sep 3, 202611-5020

“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: company website · checked Sep 3, 2026
10
Star Consultants, INCIndirect evidence
Columbus, OH, United StatesHQ checked Sep 3, 202611-5018

“Star is a multidisciplinary professional services company that provides services to a broad range of public and private sector clients.”

Source: company website · checked Sep 3, 2026
11Columbus, OH, United StatesHQ checked Sep 3, 202611-5013

“Established in 1982, Roger D.”

Source: company website · checked Sep 3, 2026
12Columbus, OH, United StatesHQ checked Sep 3, 20261-106

“Betterchips Consulting is a globally-renowned firm that has built an ecosystem of trusted professionals across a wide range of computing technologies.”

Source: company website · checked Sep 3, 2026
13
G2 Planning And DesignIndirect evidence
Columbus, OH, United StatesHQ checked Sep 3, 20261-105

“G2 Planning and Design was founded with the singular goal of providing high quality land planning and design, exceptional client service, and extraordinary value to our clients.”

Source: company website · checked Sep 3, 2026
14
Allison Structural GroupPartial evidence
Columbus, OH, United StatesHQ checked Sep 3, 20261-103

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

Source: company website · checked Sep 3, 2026
15
On AIR Communications INCPartial evidence
Columbus, OH, United StatesHQ checked Sep 3, 20261-102

“Since 2002, On Air Communications has been a leading provider of site development, strategic planning, project management, and consulting services to the wireless industry.”

Source: company website · checked Sep 3, 2026
16
FloagilityIndirect evidence
Columbus, OH, United StatesHQ checked Sep 3, 20261-102

“With years of experience, we can take your business to the next level.”

Source: company website · checked Sep 3, 2026

Showing 16 of 41 infrastructure consulting firms based in Columbus, United States

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Infrastructure consulting firms based in Columbus, United States at a glance

As of Sep 3, 2026
1-10Median size (employees)
New YorkLargest hub · 306 HQs
Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
21
11-50
10
51-200
4
201-500
4
1,001-5,000
1
10001+
1

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 Columbus, over 41 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 infrastructure consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “infrastructure consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among 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 an evidence 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, 811 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 3, 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.

Infrastructure consulting firms by metro in the United States

Frequently asked

How many infrastructure consulting firms are there based in Columbus, United States?

RevenueBase identified 41 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 has the most infrastructure consulting firms?

New York leads with 306 headquartered companies, followed by Houston (293) and Washington (158).

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 811 verified decision-maker contacts tracked across these 41 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 3, 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 SmartSearch, 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.