Company lists · Data refreshed September 2026
Top 9 Infrastructure consulting firms based in Baltimore, United States
RevenueBase identified 28 infrastructure consulting firms headquartered in Baltimore, United States as of September 2026 and tracks 704 professional contacts across them, including 322 with verified work emails. New York is the largest hub.
This list covers infrastructure consulting firms headquartered in Baltimore, 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.
The 9 largest infrastructure consulting firms based in Baltimore, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 56 | ||||
“James Posey Associates has grown to a firm of more than 62 since Baltimore engineer James Posey started his practice in 1911.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | Omni Strategy, LLCIndirect evidence | 33 | |||
“Founded in Maryland, U.S.A, in 2009, and operating since 2013, we are an MBE/DBE certified Small Business serving the transportation industry.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | Mindpros, INCIndirect evidence | 16 | |||
“Software Development and Services” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 14 | ||||
“CityScape Engineering is a civil engineering firm specialized in the design of green infrastructure, stormwater management practices, and wet utilities (stormdrain, sanitary…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | Kovacs, Whitney & Associates, INCPartial evidence | 12 | |||
“Kovacs, Whitney & Associates, Inc.(KWA) has been serving the Mid-Atlantic area community since 1984 providing engineering consulting services to a broad base of repeat government…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 10 | ||||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | Sustainable Design Consortium SDCIndirect evidence | 8 | |||
“Sustainable Design Consortium (SDC) founded in 1989, is a small, disadvantaged business based in Columbia, Maryland with offices in San Antonio Texas that has the skills and…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | PS Solutions Group, LLCPartial evidence | 2 | |||
“PS Solutions Group is a management consulting firm.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1 | ||||
“With over 40 years of experience as a multi-disciplinary engineering firm, CCJM has grown into a staff of nearly 100-strong, including qualified civil, environmental, electrical…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 9 of 28 infrastructure consulting firms based in Baltimore, United States
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Infrastructure consulting firms based in Baltimore, United States at a glance
As of Sep 3, 2026Companies by employee count
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 Baltimore, over 28 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 Baltimore, 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 Baltimore 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, 322 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
- Infrastructure consulting firms in New York306
- Infrastructure consulting firms in Houston293
- Infrastructure consulting firms in Washington158
- Infrastructure consulting firms in Dallas152
- Infrastructure consulting firms in Atlanta144
- Infrastructure consulting firms in Chicago139
- Infrastructure consulting firms in Miami133
- Infrastructure consulting firms in Austin121
- Infrastructure consulting firms in Los Angeles109
- Infrastructure consulting firms in San Francisco103
- Infrastructure consulting firms in Denver95
- Infrastructure consulting firms in Seattle93
- Infrastructure consulting firms in San Diego89
- Infrastructure consulting firms in Tampa82
- Infrastructure consulting firms in Orlando76
- Infrastructure consulting firms in San Antonio76
- Infrastructure consulting firms in Portland72
- Infrastructure consulting firms in Irvine71
- Infrastructure consulting firms in Raleigh70
- Infrastructure consulting firms in Charlotte69
- Infrastructure consulting firms in Phoenix65
- Infrastructure consulting firms in Boston64
- Infrastructure consulting firms in Jacksonville53
- Infrastructure consulting firms in Las Vegas53
- Infrastructure consulting firms in Sacramento49
- Infrastructure consulting firms in Columbia47
- Infrastructure consulting firms in Philadelphia45
- Infrastructure consulting firms in Fort Lauderdale44
- Infrastructure consulting firms in Columbus41
- Infrastructure consulting firms in Pittsburgh41
- Infrastructure consulting firms in Minneapolis40
- Infrastructure consulting firms in Arlington38
- Infrastructure consulting firms in Indianapolis37
- Infrastructure consulting firms in Oakland37
- Infrastructure consulting firms in Scottsdale37
- Infrastructure consulting firms in Nashville35
- Infrastructure consulting firms in Salt Lake City32
- Infrastructure consulting firms in Fort Worth31
- Infrastructure consulting firms in San Jose31
- Infrastructure consulting firms in Richmond30
- Infrastructure consulting firms in Baltimore28
- Infrastructure consulting firms in Baton Rouge28
- Infrastructure consulting firms in Newark28
- Infrastructure consulting firms in Pasadena28
- Infrastructure consulting firms in Wilmington28
- Infrastructure consulting firms in Alexandria27
- Infrastructure consulting firms in Fort Collins27
- Infrastructure consulting firms in Plano27
- Infrastructure consulting firms in Marietta25
Frequently asked
How many infrastructure consulting firms are there based in Baltimore, United States?
RevenueBase identified 28 infrastructure consulting firms headquartered in Baltimore, 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?
James Posey Associates, INC, headquartered in Baltimore, 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 322 verified decision-maker contacts tracked across these 28 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.
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