Company lists · Data refreshed September 2026

Top 17 Security consulting firms based in Columbia, United States

RevenueBase identified 39 security consulting firms headquartered in Columbia, United States as of September 2026 and tracks 483 professional contacts across them, including 132 with verified work emails. New York is the largest hub.

This list covers security consulting firms headquartered in Columbia, 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 6, 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 6, 2026 86% judged on-target in blind review
39Companies
483Contacts tracked
132Verified emails
Explore all 39 companies → Free signup · no credit card · 500 free credits

The 17 largest security consulting firms based in Columbia, United States

Ranked by team size
Top 17 of 39 security consulting firms based in Columbia, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names security 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
1Columbia, MD, United StatesHQ checked Sep 6, 202651-200119

“SealingTech, a Parsons Company, rapidly delivers innovative, agile cybersecurity solutions that modernize, protect, and defend the networks and systems of the federal government…”

Source: company website · checked Sep 6, 2026
2
Jasint Innovative SolutionsIndirect evidence
Columbia, MD, United StatesHQ checked Sep 6, 202651-20058

“JASINT is a Maryland based Limited Liability Company that began its business operations and staffing in July 2007.”

Source: company website · checked Sep 6, 2026
3
Secom SecurityPartial evidence
Columbia, MD, United StatesHQ checked Sep 6, 202611-5037

“A trusted security partner for over 20 years, Secom provides state-of-the-art security solutions to commercial properties, government, religious institutions, and schools and…”

Source: company website · checked Sep 6, 2026
4
SRC Technologies INCIndirect evidence
Columbia, MD, United StatesHQ checked Sep 6, 202651-20030

“SRC Technologies, INC provides information technology (IT) consultation services to government agencies and corporations alike, specializing in secure computing services.”

Source: company website · checked Sep 6, 2026
5Columbia, United StatesHQ checked Sep 6, 202651-20024

“Enterprise Security Solutions helps data center, utility, enterprise, and government clients protect facilities, infrastructure, and personnel.”

Source: company website · checked Sep 6, 2026
6
Coact, INCIndirect evidence
Columbia, MD, United StatesHQ checked Sep 6, 202611-5015
Source: company website · checked Sep 6, 2026
7Columbia, MD, United StatesHQ checked Sep 6, 202611-5014

“eureka strategic is a small consulting firm dedicated to discovering and developing solutions to the most difficult problems our customers face.”

Source: company website · checked Sep 6, 2026
8
Themis Insight, LLCPartial evidence
Columbia, MD, United StatesHQ checked Sep 6, 202611-5014

“Themis Insight provides human focused insight to National Security clients.”

Source: company website · checked Sep 6, 2026
9
Secure Innovations, LLCIndirect evidence
Columbia, MD, United StatesHQ checked Sep 6, 202651-20013

“Our highly-skilled professionals have an average of 20+ years of experience working with, and in, the public sector.”

Source: company website · checked Sep 6, 2026
10
Ndepth Security, LLCPartial evidence
Columbia, MD, United StatesHQ checked Sep 6, 202611-5010

“nDepth Security, LLC is a service-oriented, small business that strives to be a profound leader in providing support in all areas of systems engineering, information assurance…”

Source: company website · checked Sep 6, 2026
11Columbia, MD, United StatesHQ checked Sep 6, 202651-2009

“White Cliffs Consulting is a small cyber intelligence and security firm providing high-end consulting and technical services in network analysis, software development and…”

Source: company website · checked Sep 6, 2026
12
Shield 7 ConsultingPartial evidence
Columbia, MD, United StatesHQ checked Sep 6, 202611-508

“Shield 7 operates as a Veteran Owned consulting firm and VAR based in Maryland.”

Source: company website · checked Sep 6, 2026
13
Interceptor CyberopsIndirect evidence
Columbia, MD, United StatesHQ checked Sep 6, 202611-502

“Today, data has become the world’s most valuable (and vulnerable) resource.”

Source: company website · checked Sep 6, 2026
14
Ramparts SecurityIndirect evidence
Columbia, MD, United StatesHQ checked Sep 6, 20261-102

“The Ramparts team has over 3 decades of experience performing threat analysis for critical infrastructure and defense systems, and over a decade of experience leading adversarial…”

Source: company website · checked Sep 6, 2026
15Columbia, SC, United StatesHQ checked Sep 6, 20261-102

“We are a security consulting and training company.”

Source: company website · checked Sep 6, 2026
16
Shinobi Enterprises, LLCStrong evidence
Columbia, PA, United StatesHQ checked Sep 6, 20261-101

“Shinobi offers confidential consulting and training with specific and in-depth expertise on China's national security and commercial espionage operations and tactics.”

Source: company website · checked Sep 6, 2026
17
Banshee Cybersecurity LLCIndirect evidence
Columbia, MO, United StatesHQ checked Sep 6, 20261-101

“Many small businesses avoid cybersecurity because they are overwhelmed or by it, or because they feel uncertain, assuming they are protected.”

Source: company website · checked Sep 6, 2026

Showing 17 of 39 security consulting firms based in Columbia, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 132 reachable decision-makers.

Free signup · no credit card

See all 39 companies

Security consulting firms based in Columbia, United States at a glance

As of Sep 6, 2026
11-50Median size (employees)
New YorkLargest hub · 189 HQs
Contacts with mobile numbers
Sep 6, 2026Data refreshed

Companies by employee count

1-10
15
11-50
14
51-200
10

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 Columbia, over 39 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 security 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 Columbia, United States whose own description of what they do matches “security 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 security consulting firms, and records with no verified work email. Companies headquartered outside Columbia 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, 132 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 6, 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.

Security consulting firms by metro in the United States

Frequently asked

How many security consulting firms are there based in Columbia, United States?

RevenueBase identified 39 security consulting firms headquartered in Columbia, 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?

Sealing Technologies, A Parsons Company, headquartered in Columbia, tops this list with the largest team on record.

Which city has the most security consulting firms?

New York leads with 189 headquartered companies, followed by Washington (139) and Houston (124).

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 132 verified decision-maker contacts tracked across these 39 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 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 39 security consulting firms based in Columbia, United States. Start with a free account, no credit card.

Get the full list

Related lists

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.