Company lists · Data verified August 2026

Top 20 Ad tech software companies based in Denver, United States

Name: Ad tech software companies based in Denver, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 35 companies tracked

There are 35 ad tech software companies headquartered in Denver, United States (RevenueBase, August 2026). RevenueBase tracks 965 professional contacts across them, including 635 with verified work emails and 503 with mobile numbers. New York is the largest hub.

This list covers ad tech software companies headquartered in Denver, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

35Companies

965Contacts tracked

635Verified emails

503Mobile numbers

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The 20 largest ad tech software companies based in Denver, United States

Ranked by team size

Top 20 of 35 ad tech software companies based in Denver, United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Viant Technology	Denver, CO	201-500	415	336
2	Adcellerant	Denver, CO	201-500	184	129
3	Lineup Systems	Denver, CO	51-200	75	50
4	Choozle	Denver, CO	51-200	61	34
5	Techint Labs	Denver, CO	51-200	37	23
6	Ifficient	Denver, CO	11-50	33	10
7	Decentrix INC	Denver, CO	51-200	25	13
8	Indicue	Denver, CO	11-50	15	4
9	Consultv	Denver, CO	11-50	9	5
10	adduro.io	Denver, CO	11-50	9	4
11	Rambunctious Rhino	Denver, CO	1-10	8	7
12	Ventura Growth	Denver, CO	1-10	7	6
13	Project AD Ops, LLC	Denver, CO	1-10	4	3
14	Gogo CTV	Denver, CO	1-10	4	2
15	Mantis AD Network	Denver, CO	11-50	3	3
16	Adwora	Denver, CO	51-200	3	1
17	Mediagravy	Denver, CO	1-10	2	2
18	Elevated Media INC	Denver, CO	1-10	2	1
19	OAK Barrel Media, LLC	Denver, CO	1-10	1	1
20	Pubteck	Denver, CO	1-10	1	1

Showing 20 of 35 ad tech software companies based in Denver, United States

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Ad tech software companies based in Denver, United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 318 HQs

503Contacts with mobile numbers

8Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Ad tech software companies by metro in the United States

Metro	Companies
Ad tech software companies in New York	318
Ad tech software companies in San Francisco	89
Ad tech software companies in Los Angeles	77
Ad tech software companies in Miami	60
Ad tech software companies in Chicago	40
Ad tech software companies in Sheridan	37
Ad tech software companies in Denver	35

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “ad tech software companies”, with match quality audited by blind human judging, and headquartered in Denver, United States.
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: Contact records re-verify on a rolling cadence; 8 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many ad tech software companies are there based in Denver, United States?

There are 35 ad tech software companies headquartered in Denver, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Viant Technology, headquartered in Denver, tops this list with the largest team on record.

Which city has the most ad tech software companies?

New York leads with 318 headquartered companies, followed by San Francisco (89) and Los Angeles (77).

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 635 verified decision-maker contacts tracked across these 35 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.