Company lists · Data refreshed September 2026

Top 25 School communication platform companies based in the United States

RevenueBase identified 209 school communication platform companies headquartered in the United States as of September 2026 and tracks 4,165 professional contacts across them, including 1,779 with verified work emails. San Francisco is the largest hub.

This list covers school communication platform companies 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 29, 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 29, 2026 86% judged on-target in blind review
209Companies
4,165Contacts tracked
1,779Verified emails
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The 25 largest school communication platform companies based in the United States

Ranked by team size
Top 25 of 209 school communication platform companies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to school communication platform 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
1Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202651-200477 contacts →

Indirect evidence

“ClassDojo's mission is to give every child on Earth an education they love.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceGlastonbury, CT, United StatesHQ checked Sep 29, 2026201-500476 contacts →

Partial evidence

“Finalsite is the most valued partner for K–12 schools to build trust, strengthen community, and grow enrollment.”

Source: RevenueBase Database · checked Sep 29, 2026
3Strong evidenceLittle Rock, AR, United StatesHQ checked Sep 29, 2026201-500409 contacts →

Strong evidence

“The All-in-One Communications Platform for K-12 Districts and Schools Our technology helps K-12 leaders power their brand and deliver the best communication experience to all…”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceGoleta, CA, United StatesHQ checked Sep 29, 2026201-500363 contacts →

Indirect evidence

“At ParentSquare, we believe that when families are engaged, students thrive.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026201-500310 contacts →

Indirect evidence

“We believe technology is a powerful lever to make education equitable for all and the fastest way to improve educational outcomes now.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceOverland Park, KS, United StatesHQ checked Sep 29, 202651-200157 contacts →

Indirect evidence

“Nelnet Community Engagement (NCE) exists to empower people to impact the world.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceBurlington, MA, United StatesHQ checked Sep 29, 202651-200125 contacts →

Partial evidence

“Ready Education provides a total student experience platform that attracts and retains students providing experiences that engage and lead to successful outcomes.”

Source: RevenueBase Database · checked Sep 29, 2026
8Strong evidenceGlendale, CA, United StatesHQ checked Sep 29, 202651-200105 contacts →

Strong evidence

“Engage your entire community with Edlio's unified platform designed for connecting schools with today's families.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202651-200101 contacts →

Partial evidence

“TalkingPoints is an education technology nonprofit with the mission to drive student success by unlocking the superpower of effective family-school partnerships.”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceBoston, MA, United StatesHQ checked Sep 29, 202651-20088 contacts →

Partial evidence

“Modo is the world’s leading platform provider of workplace and campus apps.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceWrentham, MA, United StatesHQ checked Sep 29, 202611-5077 contacts →

Partial evidence

“As the back-to-school company, for 20-plus years we’ve helped schools and families kick off back-to-school and have a successful year.”

Source: RevenueBase Database · checked Sep 29, 2026
12Strong evidenceNew York, NY, United StatesHQ checked Sep 29, 202651-20077 contacts →

Strong evidence

“Amplispot is the mobile-first company communications platform, used by organizations to increase productivity and empower advocacy by informing and engaging employees with timely…”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202651-20064 contacts →

Partial evidence

“Remind is now part of ParentSquare, joining forces to deliver the most comprehensive, reliable family engagement platform in K-12.”

Source: RevenueBase Database · checked Sep 29, 2026
14Strong evidenceNorth America, United StatesHQ checked Sep 29, 202651-20063 contacts →

Strong evidence

“SchoolMessenger is the trusted platform for school community engagement.”

Source: RevenueBase Database · checked Sep 29, 2026
15Strong evidenceDallas, TX, United StatesHQ checked Sep 29, 202651-20055 contacts →

Strong evidence

“The world’s most comprehensive Digital Student Support platform helping educators scale their hearts and school districts expand their services.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 29, 202651-20053 contacts →

Indirect evidence

“Crescerance, Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
17Strong evidenceNew York, NY, United StatesHQ checked Sep 29, 202611-5047 contacts →

Strong evidence

“Founded in eChalk is a K-12 software platform schools use to manage communication and instruction.”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 202651-20036 contacts →

Partial evidence

“L Squared Digital provides turn-key enterprise corporate communication solutions with a mandate to improve culture and effective communication worldwide.”

Source: RevenueBase Database · checked Sep 29, 2026
19Strong evidenceCambridge, MA, United StatesHQ checked Sep 29, 202611-5036 contacts →

Strong evidence

“HubEngage™ is a unified employee communications, engagement, recognition and instant messaging platform.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceTuscaloosa, AL, United StatesHQ checked Sep 29, 2026201-50034 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceBoston, MA, United StatesHQ checked Sep 29, 202611-5026 contacts →

Partial evidence

“Kaymbu is the leading visual messaging and authentic assessment platform for early education.”

Source: RevenueBase Database · checked Sep 29, 2026
22Strong evidenceFarmingville, NY, United StatesHQ checked Sep 29, 202611-5025 contacts →

Strong evidence

“Syntax Communication is a school communications company based out of 2410 North Ocean Ave, Suite 400, Farmingville, NY, United States.”

Source: RevenueBase Database · checked Sep 29, 2026
23Strong evidenceRedmond, WA, United StatesHQ checked Sep 29, 20261-1022 contacts →

Strong evidence

“Bloomz is a unified communication platform for school districts that connects teachers and administrators with parents and students securely and privately.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidencePleasanton, CA, United StatesHQ checked Sep 29, 202611-5017 contacts →

Indirect evidence

“Communicate with your employees in the simplest way possible.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceBlanco, TX, United StatesHQ checked Sep 29, 20261-1016 contacts →

Indirect evidence

“TSN gives education and business leaders the ability to broadcast important information to all of their internal and external audiences on digital signage screens through one…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 209 school communication platform companies based in the United States

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School communication platform companies based in the United States at a glance

As of Sep 29, 2026
42.7%Verified-email coverage
19.9Average contacts per company
11-50Median size (employees)
5.7%Largest-city concentration · San Francisco
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
103
11-50
71
51-200
20
201-500
11
501-1,000
1
1,001-5,000
1
10001+
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 209 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 school communication platform 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 the United States whose own description of what they do matches “school communication platform 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 school communication platform 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 school communication platform companies, 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, 1,779 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 29, 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 school communication platform 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 school communication platform companies are there based in the United States?

RevenueBase identified 209 school communication platform companies 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?

Classdojo, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most school communication platform companies?

San Francisco leads with 12 headquartered companies, followed by New York (7) and Dallas (5).

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 1,779 verified decision-maker contacts tracked across these 209 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 29, 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.