Company lists · Data refreshed September 2026
Top 24 Energy engineering consulting firms based in Columbus, United States
RevenueBase identified 37 energy engineering consulting firms headquartered in Columbus, United States as of September 2026 and tracks 751 professional contacts across them, including 388 with verified work emails. Across the United States, Houston is the largest hub for this category (298 companies); Columbus has 37.
This list covers energy engineering 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 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.
The 24 largest energy engineering consulting firms based in Columbus, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 159 contacts → | ||||
Strong 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 24, 2026Thanks. The Data Team will review it. | |||||
| 2 | 131 contacts → | ||||
Strong evidence “Founded in 1964, Korda is a multidisciplinary engineering firm headquartered in Columbus, OH, providing full consulting engineering services.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 3 | 75 contacts → | ||||
Partial 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 24, 2026Thanks. The Data Team will review it. | |||||
| 4 | 70 contacts → | ||||
Indirect evidence “Paul J.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 5 | 49 contacts → | ||||
Strong evidence “Lawhon & Associates, Inc.(L&A) provides full-service environmental and engineering consulting services to the public and private sector.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 6 | 37 contacts → | ||||
Strong 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 24, 2026Thanks. The Data Team will review it. | |||||
| 7 | 31 contacts → | ||||
Strong 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 24, 2026Thanks. The Data Team will review it. | |||||
| 8 | 26 contacts → | ||||
Partial evidence “Moody Engineering is an experienced team of civil engineers.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 9 | 23 contacts → | ||||
Strong evidence “In 1984, Joyce Johnson established CAD Concepts, Inc.(the CCI in CCI Engineering Services) as a consulting enterprise.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 10 | 20 contacts → | ||||
Indirect 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 24, 2026Thanks. The Data Team will review it. | |||||
| 11 | 18 contacts → | ||||
Partial evidence “National Engineering was formed in March with one goal in mind, to offer engineering clients what seems to be in short supply; service.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 12 | 14 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 contacts → | ||||
Indirect evidence “Established in 1982, Roger D.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 contacts → | ||||
Strong 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 24, 2026Thanks. The Data Team will review it. | |||||
| 15 | 10 contacts → | ||||
Strong evidence “Kramer Engineers is a Columbus, Ohio consulting/design engineering firm; providing over 60 years of design innovation.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 16 | 10 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Partial evidence “EA Energy Solutions is an energy services company.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Partial evidence “Weishuhn Engineering Inc is an Environmental Engineering company located at 425 Spring Street Suite 102, Columbus, Texas, United States.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Partial 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 24, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Strong evidence “AMS is an engineering and design firm providing complete energy solutions to business customers.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect 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 24, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Strong evidence “Trebel, LLC is a national energy consulting / brokerage company serving commercial, governmental, small business and residential clients primarily throughout the deregulated…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Partial evidence “Energent Solutions is dedicated to helping companies meet and exceed their energy, sustainability, and ESG goals.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Lighting the way to smarter business solutions.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
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: energy engineering consulting firms. 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 energy engineering consulting firms.
- Partial evidence
- Its own public description names part of energy engineering consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name energy engineering consulting firms. 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 24 of 37 energy engineering consulting firms based in Columbus, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 388 reachable decision-makers.
Free signup · no credit card
Energy engineering consulting firms based in Columbus, United States at a glance
As of Sep 24, 2026Companies by employee count
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 37 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 energy engineering 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 “energy engineering 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 energy engineering 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 energy engineering 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, 388 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.
Energy engineering consulting firms by metro in the United States
- Energy engineering consulting firms in Houston298
- Energy engineering consulting firms in New York190
- Energy engineering consulting firms in Austin99
- Energy engineering consulting firms in Chicago83
- Energy engineering consulting firms in Dallas76
- Energy engineering consulting firms in Denver76
- Energy engineering consulting firms in San Diego73
- Energy engineering consulting firms in Atlanta66
- Energy engineering consulting firms in Miami65
- Energy engineering consulting firms in Los Angeles55
- Energy engineering consulting firms in Portland53
- Energy engineering consulting firms in Charlotte52
- Energy engineering consulting firms in San Francisco52
- Energy engineering consulting firms in Tampa49
- Energy engineering consulting firms in Orlando46
- Energy engineering consulting firms in Phoenix45
- Energy engineering consulting firms in Seattle44
- Energy engineering consulting firms in Washington41
- Energy engineering consulting firms in Las Vegas39
- Energy engineering consulting firms in San Antonio37
- Energy engineering consulting firms in Columbia36
- Energy engineering consulting firms in Boston35
- Energy engineering consulting firms in Indianapolis33
- Energy engineering consulting firms in Irvine32
- Energy engineering consulting firms in Philadelphia32
- Energy engineering consulting firms in Minneapolis30
- Energy engineering consulting firms in Pittsburgh30
- Energy engineering consulting firms in Raleigh30
- Energy engineering consulting firms in Fort Worth27
- Energy engineering consulting firms in Tulsa26
- Energy engineering consulting firms in Madison25
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 energy engineering 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 energy engineering consulting firms are there based in Columbus, United States?
RevenueBase identified 37 energy engineering 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?
Resource International, INC, headquartered in Columbus, tops this list with the largest team on record.
Which city in the United States has the most energy engineering consulting firms?
Houston leads the United States with 298 headquartered companies, followed by New York (190) and Austin (99). Columbus has 37.
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 388 verified decision-maker contacts tracked across these 37 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.
Ready to reach these companies? Verified emails and direct dials for all 37 energy engineering consulting firms based in Columbus, United States. Start with a free account, no credit card.
Download this list →Related lists
Energy engineering consulting firms by geography
- Energy engineering consulting firms based in the United States
- Energy engineering consulting firms based in Brazil
- Energy engineering consulting firms based in Germany
- Energy engineering consulting firms based in the United Kingdom
- Energy engineering consulting firms based in France
- Energy engineering consulting firms based in Italy
- Energy engineering consulting firms based in Spain
- Energy engineering consulting firms based in Canada
- Energy engineering consulting firms based in Australia
- Energy engineering consulting firms based in the Netherlands
- Energy engineering consulting firms based in Switzerland
- Energy engineering consulting firms based in South Africa
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy engineering consulting firms based in the United States
- Energy engineering consulting firms based in Brazil
- Energy engineering consulting firms based in Germany
- Energy engineering consulting firms based in the United Kingdom
- Energy engineering consulting firms based in France
- Energy engineering consulting firms based in Italy