Company lists · Data refreshed September 2026

Top 20 Push notification platform developers based in the United States

RevenueBase identified 68 push notification platform developers headquartered in the United States as of September 2026 and tracks 949 professional contacts across them, including 410 with verified work emails and 323 with mobile numbers. New York is the largest hub.

This list covers push notification platform developers 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
68Companies
949Contacts tracked
410Verified emails
323Mobile numbers
Explore all 68 companies → Free signup · no credit card · 500 free credits

The 20 largest push notification platform developers based in the United States

Ranked by team size
Top 20 of 68 push notification platform developers based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names push notification platform developers: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
customer.ioPartial evidence
Portland, OR, United StatesHQ checked Sep 5, 2026201-500446

“Create personalized customer journeys that engage and convert with our versatile customer engagement platform.”

Source: company website · checked Sep 5, 2026
2
OnesignalStrong evidence
San Mateo, CA, United StatesHQ checked Sep 5, 202651-200191

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

Source: company website · checked Sep 5, 2026
3
SortmentPartial evidence
New York, United StatesHQ checked Sep 5, 202611-5020

“Sortment understands your business, identifies opportunities, and runs lifecycle programs end to end across email, push, SMS, and in-app.”

Source: company website · checked Sep 5, 2026
4
Txtwire TechnologiesIndirect evidence
Idaho Falls, ID, United StatesHQ checked Sep 5, 202611-5010

“Reach people where they are, when you need to be heard.”

Source: company website · checked Sep 5, 2026
5
Engagespot Techstars S24Partial evidence
New York, NY, United StatesHQ checked Sep 5, 20261-109

“Zapier for Notifications.”

Source: company website · checked Sep 5, 2026
6
WebpushrStrong evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-108

“World's second largest and fastest growing web push notifications platform, helping 20K+ businesses deliver 2B+ web push and on-site messages daily.”

Source: company website · checked Sep 5, 2026
7
WaterfallIndirect evidence
New York, TX, United StatesHQ checked Sep 5, 202651-2006

“Waterfall enables you to reach your customers where they are, and motivate them in the moment with enterprise messaging software built to drive engagement.”

Source: company website · checked Sep 5, 2026
8
ResonanceIndirect evidence
San Francisco, United StatesHQ checked Sep 5, 20261-104

“We help companies activate, engage, and retain users for long term product success.”

Source: company website · checked Sep 5, 2026
9
Poly PlatformStrong evidence
Pittsburgh, PA, United StatesHQ checked Sep 5, 20261-104

“Poly Platform allows organizations to schedule events and send mobile push notifications to the members of their organization, as well as conduct surveys and polls with real-time…”

Source: company website · checked Sep 5, 2026
10
EntreprovIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-104

“We build tools that increase customer engagement and drive loyalty.”

Source: company website · checked Sep 5, 2026
11
DeliverhubStrong evidence
Marshall, United StatesHQ checked Sep 5, 202651-2003

“DeliverHub.net is a revenue-focused, international marketing platform developed specifically for the marketing needs of today.”

Source: company website · checked Sep 5, 2026
12
NotifyaiStrong evidence
Austin, TX, United StatesHQ checked Sep 5, 202611-503

“NotifyAI Push Platform is the leading tool to acquire, engage, and monetize your website visitors by creating real-time, AI centered connections between your customers and our…”

Source: company website · checked Sep 5, 2026
13
Journey NudgePartial evidence
New York, United StatesHQ checked Sep 5, 20261-103

“Journey Nudge provides an AI-driven notification engine that tailors messages to individual user behaviors and preferences, ensuring every notification resonates with their needs…”

Source: company website · checked Sep 5, 2026
14San Diego, United StatesHQ checked Sep 5, 202611-503
Source: company website · checked Sep 5, 2026
15
PushengageStrong evidence
Wilmington, DE, United StatesHQ checked Sep 5, 202611-503

“Welcome to PushEngage, your premier partner for unlocking the full potential of web and app push notifications!”

Source: company website · checked Sep 5, 2026
16
Raven Notification APIIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 5, 20261-103

“Raven provides a reliable infrastructure to manage all customer communication in one place.”

Source: company website · checked Sep 5, 2026
17
Brick TattooPartial evidence
Cincinnati, OH, United StatesHQ checked Sep 5, 20261-102

“Our Vision: Provide a premier digital platform giving brands & companies of all sizes, the ability to analyze, segment & target their web & mobile app users.”

Source: company website · checked Sep 5, 2026
18
NODATPartial evidence
Nashville, TN, United StatesHQ checked Sep 5, 20261-102

“Nodat is the first geo-targeting mobile marketing platform to empower local businesses and content creators to target the right audience in the right geographical area on mobile.”

Source: company website · checked Sep 5, 2026
19
Another Brilliant Idea, INCIndirect evidence
Corona, CA, United StatesHQ checked Sep 5, 20261-102
Source: company website · checked Sep 5, 2026
20
Fotobom Media INCIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 5, 20261-101

“Fotobom Media, Inc.”

Source: company website · checked Sep 5, 2026

Showing 20 of 68 push notification platform developers based in the United States

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Push notification platform developers based in the United States at a glance

As of Sep 5, 2026
11-50Median size (employees)
New YorkLargest hub · 6 HQs
323Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
32
11-50
28
51-200
7
201-500
1

Verified emails by last verification

0–30
380
31–60
23
61–90
0
90–180
0
180+
7

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 push notification platform developers, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “push notification platform developers”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among push notification platform developers, 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 an evidence 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, 410 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 5, 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

How many push notification platform developers are there based in the United States?

RevenueBase identified 68 push notification platform developers 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?

customer.io, headquartered in Portland, tops this list with the largest team on record.

Which city has the most push notification platform developers?

New York leads with 6 headquartered companies, followed by Austin (4) and San Francisco (3).

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 410 verified decision-maker contacts tracked across these 68 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 5, 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 SmartSearch, 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.