Company lists · Data refreshed September 2026

Top 25 Gaming middleware providers based in the United States

RevenueBase identified 86 gaming middleware providers headquartered in the United States as of September 2026 and tracks 2,409 professional contacts across them, including 640 with verified work emails. Seattle is the largest hub.

This list covers gaming middleware providers 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 20, 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 20, 2026 86% judged on-target in blind review
86Companies
2,409Contacts tracked
640Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest gaming middleware providers based in the United States

Ranked by team size
Top 25 of 86 gaming middleware providers based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to gaming middleware providers: 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 evidenceBellevue, WA, United StatesHQ checked Sep 20, 2026201-5001,299 contacts →

Indirect evidence

“Valve is an entertainment software and technology company founded in 1996 and based in Bellevue, Washington.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceRichardson, United StatesHQ checked Sep 20, 202651-200326 contacts →

Indirect evidence

“id – defined by Freud as the primal section of the human psyche; id Software, located in Richardson, Texas, was founded in 1991.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceBellevue, WA, United StatesHQ checked Sep 20, 2026201-500234 contacts →

Indirect evidence

“AccelByte provides a comprehensive white-label backend for game studios to develop, publish, and operate games-as-a-service.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceSeattle, WA, United StatesHQ checked Sep 20, 202611-5050 contacts →

Indirect evidence

“PlayEveryWare's mission is to be the industry's best partner.”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceLutherville Timonium, MD, United StatesHQ checked Sep 20, 202651-20045 contacts →

Partial evidence

“Oxide Games is as the forefront of next-generation technology and gaming.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidencePalo Alto, CA, United StatesHQ checked Sep 20, 202611-5029 contacts →

Indirect evidence

“Enabling everyone to create games and interactive experiences.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceSanta Monica, CA, United StatesHQ checked Sep 20, 202611-5026 contacts →

Indirect evidence

“Grab is a group of passionate developers that aim to deliver quality games and entertainment experiences to the consumer.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 20, 202611-5025 contacts →

Indirect evidence

“Bezi enables game designers to prototype independently, developers to focus on complex work, and technical artists to automate their pipelines - solo or at a studio.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceSolana Beach, CA, United StatesHQ checked Sep 20, 202611-5024 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 20, 20261-1015 contacts →

Indirect evidence

“Game Caviar is the operating system that reflects how games get built.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceWalnut, CA, United StatesHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“Madorium is an independent game developer based in California, with members from around the world.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceMountain View, CA, United StatesHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“Game Closure enables developers to take their games to the multiplayer, multiplatform market in an easy, cost-effective manner.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceSeattle, WA, United StatesHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“Rainway is taking real-time interactive streaming to new heights with a suite of tools for independent developers, game developers, and organizations.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceReno, NV, United StatesHQ checked Sep 20, 202611-509 contacts →

Indirect evidence

“We are a full-service game development studio: from inspiration to installation, we are there every step of the way.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidencePflugerville, TX, United StatesHQ checked Sep 20, 20261-109 contacts →

Indirect evidence

“Loading Studios bridges the gap between art and game development through our Studio Tools and Technical Art Services.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceSanta Ana, CA, United StatesHQ checked Sep 20, 20261-107 contacts →

Indirect evidence

“Robotic Arm Software is a tools consulting and development services company, focused on creating better tools for the game industry.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 20, 202611-505 contacts →

Indirect evidence

“Glassbox designs next-generation software toolsets that enable content creators globally to harness the power of game engines, and real-time production, to create stunning…”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceAustin, TX, United StatesHQ checked Sep 20, 202611-504 contacts →

Indirect evidence

“GoDemics is a dynamic game development studio founded by a team of industry veterans with a storied history in game development.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202611-504 contacts →

Indirect evidence

“Acquired by Simulation Theory in 2025, Protagonist Games was founded in 2018 by Anthony Castoro as an independent games and technology company in the Greater San Diego area.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-503 contacts →

Indirect evidence

“Enabling web3 games for every developer - for everyone - on every platform - for every device - for 3 billion gamers - for the world.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceSanta Ana, CA, United StatesHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“We make, license, and support audio tools.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidencePasadena, United StatesHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“BoxCat, LLC develops games and functions as a collaboration hub.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceNY, United StatesHQ checked Sep 20, 20261-102 contacts →

Partial evidence

“2DKit LLC is a New York-based company that creates game engine middleware and tools that power hundreds of successful Facebook Instant games, playable ads, HTML5 games and mobile…”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceSeattle, WA, United StatesHQ checked Sep 20, 20261-101 contacts →

Indirect evidence

“Developing video games and tools with a focus on virtual reality and augmented reality.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceIndianapolis, United StatesHQ checked Sep 20, 20261-101 contacts →

Indirect evidence

“SQRL Studios is a game studio that focuses on making the games that we love to play, and giving other game developers the tools to bring their artistic visions to life.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 86 gaming middleware providers based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 640 reachable decision-makers.

Free signup · no credit card

View the full list →

Gaming middleware providers based in the United States at a glance

As of Sep 20, 2026
26.6%Verified-email coverage
28.0Average contacts per company
1-10Median size (employees)
8.1%Largest-city concentration · Seattle
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
46
11-50
32
51-200
5
201-500
2
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 86 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 gaming middleware providers, 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 “gaming middleware providers”. 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 gaming middleware providers), 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 gaming middleware providers, 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, 640 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 20, 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 gaming middleware providers, 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 gaming middleware providers are there based in the United States?

RevenueBase identified 86 gaming middleware providers 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?

Valve Corporation, headquartered in Bellevue, tops this list with the largest team on record.

Which city has the most gaming middleware providers?

Seattle leads with 7 headquartered companies, followed by San Francisco (5) and New York (4).

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 640 verified decision-maker contacts tracked across these 86 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 86 gaming middleware providers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.