Company lists · Data refreshed September 2026

Top 25 Message routing platforms based in the United States

RevenueBase identified 165 message routing platforms headquartered in the United States as of September 2026 and tracks 3,058 professional contacts across them, including 716 with verified work emails. San Francisco is the largest hub.

This list covers message routing platforms headquartered in the 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 28, 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 28, 2026 86% judged on-target in blind review
165Companies
3,058Contacts tracked
716Verified emails
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The 25 largest message routing platforms based in the United States

Ranked by team size
Top 25 of 165 message routing platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to message routing platforms: 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
1Indirect evidenceNew York, United StatesHQ checked Sep 28, 20261,001-5,0001,287 contacts →

Indirect evidence

“Attentive® knows personalized customer experiences require both powerful technology and the right people behind it.”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026n/a237 contacts →

Strong evidence

“Courier is the customer messaging and notifications platform where your team and AI agents collaborate.”

Source: RevenueBase Database · checked Sep 28, 2026
3Strong evidenceSan Mateo, CA, United StatesHQ checked Sep 28, 202651-200191 contacts →

Strong evidence

“OneSignal is the leading customer engagement platform for push, email, SMS/RCS, and in-app messaging.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceBozeman, MT, United StatesHQ checked Sep 28, 202651-20060 contacts →

Indirect evidence

“Quiq is a leading technology company based in Bozeman, Montana that makes it easy for people to have a conversation with a company.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceChattanooga, TN, United StatesHQ checked Sep 28, 202611-5055 contacts →

Partial evidence

“Text Request, an Esendex company, is the business texting platform built to ignite customer engagement.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceFremont, CA, United StatesHQ checked Sep 28, 202651-20051 contacts →

Indirect evidence

“Webaroo Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceMiami Beach, FL, United StatesHQ checked Sep 28, 202651-20050 contacts →

Partial evidence

“SimpleTexting is the easiest way to send messages to customers, employees, or anyone else you need to reach.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 28, 2026501-1,00045 contacts →

Indirect evidence

“mGage is now part of Kaleyra, Inc.(NYSE American: KLR)(KLR WS), a global group providing mobile communication services to financial institutions, e-commerce players, OTTs…”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceDelray Beach, FL, United StatesHQ checked Sep 28, 202651-20039 contacts →

Indirect evidence

“Simple, scalable, two-way business texting & calling.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceHillsboro, OR, United StatesHQ checked Sep 28, 202651-20032 contacts →

Partial evidence

“UPM Telecom has designed and developed a bespoke SMS platform with reliability and redundancy at its core offering promotional and transactional A2P SMS delivery for hard to…”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceVirginia Beach, VA, United StatesHQ checked Sep 28, 202651-20031 contacts →

Partial evidence

“From SMS and WhatsApp to multi-channel mobile journeys, Esendex helps you deliver business messaging that puts the power in your customers’ hands.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceFort Lauderdale, FL, United StatesHQ checked Sep 28, 202611-5029 contacts →

Partial evidence

“DANAconnect is a customer journey orchestration platform for regulated organizations.”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceTulsa, OK, United StatesHQ checked Sep 28, 202611-5028 contacts →

Strong evidence

“Volt is the leading Messaging Operations (Ops) infrastructure platform that enables software companies to integrate with multiple SMS providers and streamline number registration…”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceNew York, United StatesHQ checked Sep 28, 202611-5027 contacts →

Partial evidence

“Knock is infrastructure for sending product and customer messaging.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202611-5026 contacts →

Indirect evidence

“Hey there!”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5026 contacts →

Indirect evidence

“You have an audience that you want to stay in front of.”

Source: RevenueBase Database · checked Sep 28, 2026
17Strong evidenceWilmington, DE, United StatesHQ checked Sep 28, 202651-20026 contacts →

Strong evidence

“MessageSpring simplifies your communication efforts by reaching audiences who are most important to you through a single platform, with the right message, at the right time, in…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceAmerican Fork, UT, United StatesHQ checked Sep 28, 202611-5025 contacts →

Indirect evidence

“Skipio empowers businesses and teams across North America to cut out the busywork of customer communication.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceLaguna Beach, CA, United StatesHQ checked Sep 28, 2026501-1,00024 contacts →

Partial evidence

“At 360 SMS, we transform and simplify communication for Salesforce users with our native messaging solution, enhancing connectivity through automated, streamlined, and omnichannel…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceDenver, CO, United StatesHQ checked Sep 28, 202651-20024 contacts →

Indirect evidence

“teli is now part of Commio.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceMountain View, CA, United StatesHQ checked Sep 28, 202611-5021 contacts →

Indirect evidence

“Telerivet instantly connects organizations with their customers, operations, and communities, anywhere in the world.”

Source: RevenueBase Database · checked Sep 28, 2026
22Strong evidenceMill Valley, CA, United StatesHQ checked Sep 28, 202611-5021 contacts →

Strong evidence

“Avochato is an AI messaging platform built to help businesses have better conversations with their customers.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceHerndon, VA, United StatesHQ checked Sep 28, 202611-5019 contacts →

Partial evidence

“SkyCreek Enterprise Communication Platform (ECP) is enabling a new level of excellence for service-centric organizations that deploy multi-channel customer communications.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceWilmington, DE, United StatesHQ checked Sep 28, 202611-5018 contacts →

Partial evidence

“Acorn is a leading SMS messaging solutions provider, helping businesses connect with their audiences through effective communication.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202611-5017 contacts →

Indirect evidence

“Textla powers texting for companies that rely on SMS to reach contacts at scale.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 165 message routing platforms based in the United States

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Message routing platforms based in the United States at a glance

As of Sep 28, 2026
23.4%Verified-email coverage
18.5Average contacts per company
11-50Median size (employees)
7.9%Largest-city concentration · San Francisco
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
70
11-50
71
51-200
20
201-500
1
501-1,000
2
1,001-5,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 165 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 message routing platforms, 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 the United States whose own description of what they do matches “message routing platforms”. 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 message routing platforms), 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 message routing platforms, and records with no verified work email. Companies headquartered outside United States 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, 716 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 28, 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 message routing platforms, 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 message routing platforms are there based in the United States?

RevenueBase identified 165 message routing platforms headquartered in the 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?

Attentive, headquartered in New York, tops this list with the largest team on record.

Which city has the most message routing platforms?

San Francisco leads with 13 headquartered companies, followed by New York (12) and Wilmington (9).

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 716 verified decision-maker contacts tracked across these 165 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 28, 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.