Company lists · Data refreshed September 2026

Top 10 Email marketing companies based in Austin, United States

RevenueBase identified 39 email marketing companies headquartered in Austin, United States as of September 2026 and tracks 231 professional contacts across them, including 81 with verified work emails and 80 with mobile numbers. New York is the largest hub.

This list covers email marketing companies headquartered in Austin, 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 12, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 12, 2026 86% judged on-target in blind review
39Companies
231Contacts tracked
81Verified emails
80Mobile numbers
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The 10 largest email marketing companies based in Austin, United States

Ranked by team size
Top 10 of 39 email marketing companies based in Austin, United States, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to email marketing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceAustin, TX, United StatesHQ checked Sep 12, 202651-20043 contacts →

Partial evidence

“Postie is a marketing technology company that has transformed Direct Mail by enabling it to perform like a digital channel.”

Source: RevenueBase Database · checked Sep 12, 2026
2Indirect evidenceAustin, TX, United StatesHQ checked Sep 12, 202611-5026 contacts →

Indirect evidence

“OPTIZMO Technologies is an innovative software company that provides robust, enterprise class solutions in the Fortune 500 arena.”

Source: RevenueBase Database · checked Sep 12, 2026
3Partial evidenceAustin, TX, United StatesHQ checked Sep 12, 20261-1012 contacts →

Partial evidence

“ebusiness pros is an agency based in Austin, Texas that provides retention lifecycle marketing services to B2B and DTC product brands.”

Source: RevenueBase Database · checked Sep 12, 2026
4Strong evidenceAustin, TX, United StatesHQ checked Sep 12, 20261,001-5,00011 contacts →

Strong evidence

Email marketing software for media, publishing, and brand engagement.”

Source: RevenueBase Database · checked Sep 12, 2026
5Partial evidenceAustin, TX, United StatesHQ checked Sep 12, 202611-507 contacts →

Partial evidence

“enautics is a global Oracle and Adobe Analytics partner specializing in increasing enterprise companies’ marketing campaign results and revenue by leveraging our unique marketing…”

Source: RevenueBase Database · checked Sep 12, 2026
6Partial evidenceAustin, TX, United StatesHQ checked Sep 12, 20261-104 contacts →

Partial evidence

“Exemplar develops and licenses marketing automation, mobile advertising, and list optimization platforms that deliver data-driven targeting to some of the largest Telecom &…”

Source: RevenueBase Database · checked Sep 12, 2026
7Partial evidenceAustin, TX, United StatesHQ checked Sep 12, 20261-104 contacts →

Partial evidence

“NOBLE Digital is the world's fastest growing email and SMS service provider for ecommerce brands and digital publishers.”

Source: RevenueBase Database · checked Sep 12, 2026
8Partial evidenceAustin, TX, United StatesHQ checked Sep 12, 20261-102 contacts →

Partial evidence

“At Agile DMC, our mission is to empower tech start-ups with the tools and knowledge to thrive in the digital landscape through innovative and data-driven online marketing…”

Source: RevenueBase Database · checked Sep 12, 2026
9Partial evidenceAustin, TX, United StatesHQ checked Sep 12, 202611-501 contacts →

Partial evidence

“Real-Comp is dedicated to helping you achieve business success by providing a wide range of data and direct mail marketing solutions.”

Source: RevenueBase Database · checked Sep 12, 2026
10Strong evidenceAustin, TX, United StatesHQ checked Sep 12, 20261-101 contacts →

Strong evidence

“As a Klaviyo Partner, we help our eCommerce clients optimize their owned marketing channel through email and sms marketing.”

Source: RevenueBase Database · checked Sep 12, 2026

Showing 10 of 39 email marketing companies based in Austin, United States

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Email marketing companies based in Austin, United States at a glance

As of Sep 12, 2026
35.1%Verified-email coverage
34.6%Mobile-number coverage
5.9Average contacts per company
1-10Median size (employees)
276.9%Largest-city concentration · New York
Sep 12, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
9
51-200
4
1,001-5,000
2

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 14.0d

Company record updated

Median 74.0d

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 email marketing companies, 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 Austin, United States whose own description of what they do matches “email marketing companies”. 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 email marketing companies), 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 email marketing companies, and records with no verified work email. Companies headquartered outside Austin 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, 81 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 12, 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.

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 email marketing companies, 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 email marketing companies are there based in Austin, United States?

RevenueBase identified 39 email marketing companies headquartered in Austin, 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?

Postie, headquartered in Austin, tops this list with the largest team on record.

Which city has the most email marketing companies?

New York leads with 108 headquartered companies, followed by Los Angeles (43) and Chicago (40).

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 81 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 12, 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 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.