Company lists · Data refreshed September 2026
Top 25 Medical messaging platforms based in the United States
RevenueBase identified 301 medical messaging platforms headquartered in the United States as of September 2026 and tracks 4,304 professional contacts across them, including 1,693 with verified work emails. San Francisco is the largest hub.
This list covers medical messaging 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.
The 25 largest medical messaging platforms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 388 contacts → | ||||
Indirect evidence “Spok is proud to be a global leader in healthcare communications.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 299 contacts → | ||||
Indirect evidence “Healthcare communication has become fragmented across systems, devices, and departments, forcing clinicians to act as the “middleware” that manually routes information when…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 291 contacts → | ||||
Indirect evidence “Artera is an agentic company strengthening how healthcare providers communicate and care for patients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 210 contacts → | ||||
Indirect evidence “GD is a Healthtech company specializing in communication solutions that help EMS and hospitals deliver simply seamless patient care.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 152 contacts → | ||||
Indirect evidence “Clarity Software Solutions, Inc.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 122 contacts → | ||||
Indirect evidence “Relay Network is an innovator in how businesses communicate with their customers.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 102 contacts → | ||||
Indirect evidence “At Solv, we believe getting access to high quality, last-minute care should be simple, fast and effortless.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 100 contacts → | ||||
Indirect evidence “Hospital staff communication is the largest controllable variables for increasing operational efficiency while reducing patient risk.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 98 contacts → | ||||
Indirect evidence “Looking for a prescription for your administrative headaches?” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 93 contacts → | ||||
Strong evidence “Curogram's goal is to empower patients with a patient-centric healthcare messaging platform and universal patient portal, solving the many challenges patients face today including…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 88 contacts → | ||||
Strong evidence “American Messaging continues to lead the industry by bridging the reliability of traditional paging with the flexibility and intelligence of next-generation messaging platforms.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 80 contacts → | ||||
Indirect evidence “The Network Where Healthcare Connects.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 72 contacts → | ||||
Strong evidence “Skyscape® is a leading provider of mobile platforms for medical professionals, trusted by more than one million healthcare professionals worldwide.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 71 contacts → | ||||
Indirect evidence “Klara was founded in 2013 with a mission to transform healthcare communication, so every patient can receive great care.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 60 contacts → | ||||
Partial evidence “Committed to simplifying the business of healthcare, Updox is a single collaboration platform for out-of-hospital healthcare providers.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 59 contacts → | ||||
Indirect evidence “Biscom is now a Concord Technologies company.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 55 contacts → | ||||
Partial evidence “Text Request, an Esendex company, is the business texting platform built to ignite customer engagement.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 45 contacts → | ||||
Partial evidence “Watershed Health is a SaaS platform that connects all provider types and health plans to enable communication, collaboration, and community-wide data sharing - enabling better…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 44 contacts → | ||||
Partial evidence “Counsel Health delivers AI-enabled, physician-supervised primary care through a secure messaging-based experience.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 42 contacts → | ||||
Indirect evidence “LuxSci is a leading provider of secure healthcare communications solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 40 contacts → | ||||
Indirect evidence “Kno2 is leading the future of healthcare communication and thoughtfully solving healthcare’s biggest problems.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 39 contacts → | ||||
Partial evidence “Amplify is the modern communications platform built for regulated industries.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 37 contacts → | ||||
Indirect evidence “Valerie Health is reimagining how independent practices operate by using AI to modernize patient and provider communication interfaces, provide better care, and drive operational…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 35 contacts → | ||||
Partial evidence “OhMD is a HIPAA-compliant omni-channel patient communication platform built for physician practices struggling with high inbound patient call volume.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 35 contacts → | ||||
Indirect evidence “MD Integrations is a doctor-founded asynchronous telemedicine technology company connecting virtual healthcare providers with patients using a best-in-class white-label…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: medical messaging platforms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names medical messaging platforms.
- Partial evidence
- Its own public description names part of medical messaging platforms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name medical messaging platforms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 301 medical messaging platforms based in the United States
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Medical messaging platforms based in the United States at a glance
As of Sep 28, 2026Companies by employee count
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 301 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 medical messaging 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 “medical messaging 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 medical messaging 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 medical messaging 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, 1,693 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 medical messaging 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 medical messaging platforms are there based in the United States?
RevenueBase identified 301 medical messaging 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?
SPOK, headquartered in Plano, tops this list with the largest team on record.
Which city has the most medical messaging platforms?
San Francisco leads with 18 headquartered companies, followed by New York (14) and Austin (8).
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 1,693 verified decision-maker contacts tracked across these 301 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.
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