Company lists · Data refreshed September 2026

Top 25 Infrastructure design companies based in Columbia, United States

Name: Infrastructure design companies based in Columbia, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 39 companies tracked

RevenueBase identified 39 company matches for infrastructure design companies associated with Columbia, United States as of September 2026 and tracks 936 professional contacts across them, including 434 with verified work emails. Across the United States, Houston is the largest hub for this category (186 companies); Columbia has 39.

This list covers company matches for infrastructure design companies associated with Columbia, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built

39Companies

936Contacts tracked

434Verified emails

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The 25 largest infrastructure design companies based in Columbia, United States

Ranked by team size

Top 25 of 39 company matches for infrastructure design companies based in Columbia, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	GMK Associates, INC	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	51-200	100 contacts →
	Exact match “GMK Associates, Inc, is a multi-disciplinary planning, design, and construction services firm focused on the healthcare, education, government, utility, senior living, and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	Straughan Environmental, INC	Exact match	Columbia, MD, United StatesHQ recorded Sep 20, 2026	51-200	99 contacts →
	Exact match “Straughan Environmental provides high quality & sustainable environmental planning, permitting and design services to government (federal, state, and municipal) and commercial…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Alliance Consulting Engineers, INC	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	11-50	77 contacts →
	Exact match “Professional Civil and Environmental Engineering Firm providing Technical Consulting Services to County Governments, Municipalities, Industry, School Districts, Healthcare…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	DYNIS	Exact match	Columbia, MD, United StatesHQ recorded Sep 20, 2026	501-1,000	70 contacts →
	Exact match “DYNIS has established itself as one of the leaders in providing network infrastructure services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	F&me Consultants, INC	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	51-200	65 contacts →
	Exact match “F & ME Consultants, Inc.(FME) is a locally owned and operated engineering firm headquartered in Columbia with a branch office in Beaufort.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Parrish And Partners, LLC	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	51-200	57 contacts →
	Exact match “Parrish and Partners, LLC (P&P) is a full-service engineering firm specializing in aviation, highway, and bridge programs.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Holt Consulting Company, LLC	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	11-50	55 contacts →
	Exact match “Holt Consulting Company is a multi-discipline engineering firm that provides planning, design, and management services for transportation infrastructure.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Brudis & Associates, INC	Exact match	Columbia, MD, United StatesHQ recorded Sep 20, 2026	51-200	46 contacts →
	Exact match “Established in 1992, Brudis & Associates, Inc,(BAI) is a multi-discipline engineering, construction management and environmental firm built on trusted relationships to provide…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	Ati, INC	Exact match	Columbia, MD, United StatesHQ recorded Sep 20, 2026	51-200	45 contacts →
	Exact match “ATI provides AE design; environmental compliance and remediation; construction and facility/program management services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Engineering Surveys & Services	Exact match	Columbia, MO, United StatesHQ recorded Sep 20, 2026	11-50	30 contacts →
	Exact match “In 1954, Engineering Surveys & Services began offering professional services from a home office in Columbia, Missouri.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Allstate Consultants	Exact match	Columbia, MO, United StatesHQ recorded Sep 20, 2026	11-50	28 contacts →
	Exact match “Allstate Consultants LLC (Allstate) is a comprehensive civil engineering and surveying firm delivering innovative design solutions for public and private sector clients.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Environ-Civil Engineering LTD	Exact match	Columbia, MD, United StatesHQ recorded Sep 20, 2026	11-50	28 contacts →
	Exact match “Environ-Civil Engineering, Ltd.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	COX And Dinkins INC	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	51-200	27 contacts →
	Exact match “Founded in 1953 by Isaac B.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Dennis Corporation	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	51-200	27 contacts →
	Exact match “Dennis Corporation is a South Carolina licensed engineering, surveying, and construction management firm specializing in a broad range of services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Dungan Engineering PA	Exact match	Columbia, MS, United StatesHQ recorded Sep 20, 2026	11-50	24 contacts →
	Exact match “At Dungan Engineering, our professional civil engineering services are built on more than 250 years of combined knowledge and experience.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	KK Engineering LLC	Exact match	Columbia, MD, United StatesHQ recorded Sep 20, 2026	1-10	24 contacts →
	Exact match “We have in-depth experience in HVAC, Electrical, and Plumbing; smoke management, and fire-protection systems design for institutional, commercial, and residential facilities.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Daniel Consultants, INC	Exact match	Columbia, MD, United StatesHQ recorded Sep 20, 2026	11-50	22 contacts →
	Exact match “DCI is a full-service transportation engineering firm with the expertise to complete a multifaceted project from start to finish.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Tora Consulting, LLC	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	11-50	15 contacts →
	Exact match “Tora Consulting is now part of ALL4.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Quackenbush Architects Planners	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	11-50	12 contacts →
	Exact match “We are a full-service architecture and planning firm located in Columbia, South Carolina specializing in institutional, civic, educational, and commercial projects.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Enviro Agscience, INC	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	51-200	9 contacts →
	Exact match “We provide construction and construction management services for customers in highly demanding sectors, including government, military, hospitality, automotive, education and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	Timberlake Engineering, A Custom Engineering Company	Exact match	Columbia, MO, United StatesHQ recorded Sep 20, 2026	11-50	6 contacts →
	Exact match “Welcome to Timberlake Engineering, a Custom Engineering Company Our business philosophy has always been to provide practical designs to our clients and high quality, personal…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Hybrid Engineering, INC	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	1-10	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	The Landplan Group South, INC	Exact match	Columbia, SC, United StatesHQ recorded Sep 20, 2026	1-10	3 contacts →
	Exact match “Established in 2001 in Columbia, SC, the LandPlan Group South, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	SSE	Exact match	Columbia, United StatesHQ recorded Sep 20, 2026	1-10	3 contacts →
	Exact match “Our Services Civil Engineering Master planning conceptual design Annexation, Rezoning, Preliminary-Plat to Final Plat Services First Look Prelim Proforma Layout/Analysis Proforma…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	Elaflo Consulting Services	Exact match	Columbia, MD, United StatesHQ recorded Sep 20, 2026	1-10	2 contacts →
	Exact match “At Elaflo Consulting Services (ECS), we’re all about delivering smart, sustainable solutions in energy, infrastructure, logistics, and operations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “infrastructure design companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 39 infrastructure design companies based in Columbia, United States

See the full list, filter by size, metro and specialty, and access 434 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure design companies based in Columbia, United States at a glance

As of Sep 20, 2026

46.4%Verified-email coverage

24.0Average contacts per company

11-50Median size (employees)

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured across the whole United States list rather than for Columbia, so it is reported there. Company counts and contact totals on this page are exact for Columbia, over 39 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Columbia, United States whose business descriptions match “infrastructure design companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 434 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Infrastructure design companies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “infrastructure design companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure design companies are there based in Columbia, United States?

RevenueBase identified 39 company matches for infrastructure design companies associated with Columbia, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

GMK Associates, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most infrastructure design companies?

Houston leads the United States with 186 company records, followed by New York (131) and Chicago (104). Columbia has 39.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 434 professional contacts with verified work emails tracked across these 39 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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.