Company lists · Data refreshed September 2026

Top 25 Platform building firms based in Los Angeles, United States

Name: Platform building firms based in Los Angeles, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 354 companies tracked

RevenueBase identified 354 platform building firms headquartered in Los Angeles, United States as of September 2026 and tracks 2,294 professional contacts across them, including 426 with verified work emails. Across the United States, New York is the largest hub for this category (801 companies); Los Angeles has 354.

This list covers platform building firms headquartered in Los Angeles, 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 5, 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 5, 2026 86% judged on-target in blind review

354Companies

2,294Contacts tracked

426Verified emails

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The 25 largest platform building firms based in Los Angeles, United States

Ranked by team size

Top 25 of 354 platform building firms based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to platform building firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Qwerty Experts	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	122 contacts →
	Indirect evidence “Designed in USA and Developed in Pakistan.” Source: RevenueBase Database · checked Sep 5, 2026
2	Uptech	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	111 contacts →
	Indirect evidence “Uptech is an international software development company that helps build profitable products with product market fit for companies on Fortune 500, Inc.” Source: RevenueBase Database · checked Sep 5, 2026
3	Goji Labs	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	108 contacts →
	Indirect evidence “Goji Labs is an award-winning digital product agency in Los Angeles.” Source: RevenueBase Database · checked Sep 5, 2026
4	Feels Like	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	80 contacts →
	Indirect evidence “Feels Like is a digital design and innovation partner in Los Angeles and Barcelona.” Source: RevenueBase Database · checked Sep 5, 2026
5	It-Dimension	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	60 contacts →
	Indirect evidence “IT-Dimension is a dynamic, collaborative team of experts, specializing in designing and developing custom software solutions that empower businesses worldwide.” Source: RevenueBase Database · checked Sep 5, 2026
6	ISBX	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	56 contacts →
	Indirect evidence “ISBX is a premier digital product agency specializing in mobile and web development, delivering award-winning solutions for over 17 years.” Source: RevenueBase Database · checked Sep 5, 2026
7	Endertech	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	30 contacts →
	Indirect evidence “Engineering Growth For more than two decades, Endertech has helped brands scale by fusing technology, AI, and marketing into one unified growth engine.” Source: RevenueBase Database · checked Sep 5, 2026
8	Appmakers USA	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	1-10	29 contacts →
	Indirect evidence “Our award-winning firm specializes in delivering beautiful apps on time and on budget.” Source: RevenueBase Database · checked Sep 5, 2026
9	King Tide	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	26 contacts →
	Indirect evidence “King Tide is a design and development firm based in Los Angeles with offices in Mexico City.” Source: RevenueBase Database · checked Sep 5, 2026
10	Stauffer	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	20 contacts →
	Indirect evidence “STAUFFER™ \| Creatively Engineering What’s Next STAUFFER is a digital agency that pairs deep engineering expertise with a marketing sensibility.” Source: RevenueBase Database · checked Sep 5, 2026
11	Refact	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	19 contacts →
	Indirect evidence “Refact is a software product development studio for non-technical founders and domain experts.” Source: RevenueBase Database · checked Sep 5, 2026
12	Heat Waves	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	18 contacts →
	Indirect evidence “Heat Waves is an independent, women-owned creative and technology studio with an integrated AI practice and an internal R&D lab we use to test and build before our clients need it.” Source: RevenueBase Database · checked Sep 5, 2026
13	Sunnybyte	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	17 contacts →
	Indirect evidence “SunnyByte is a web and mobile app development and marketing tech firm specializing in software development services for clients and partners who need cost-effective, dependable…” Source: RevenueBase Database · checked Sep 5, 2026
14	Just Slide Media	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	17 contacts →
	Indirect evidence “We are proven entrepreneurs and technology operators combining the speed of a startup, the expertise of a digital agency, the strategic thinking of a consultancy, and the…” Source: RevenueBase Database · checked Sep 5, 2026
15	Clariont INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	16 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
16	Swareco	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	14 contacts →
	Indirect evidence “At SWARECO, we build software and run the engineering behind it.” Source: RevenueBase Database · checked Sep 5, 2026
17	1dev.ai	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	14 contacts →
	Indirect evidence “Cenedex works passionately to integrate information, design, and technology to help our clients transform their visions to tech reality with cloud, mobile, and desktop software…” Source: RevenueBase Database · checked Sep 5, 2026
18	Digital Squared	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	13 contacts →
	Indirect evidence “Digital Squared helps clients achieve greatest results and offers design, strategy, and application development to the companies going through a Digital Transformation process.” Source: RevenueBase Database · checked Sep 5, 2026
19	The Beyond Group	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	12 contacts →
	Indirect evidence “We are a digital product studio founded in Los Angeles.” Source: RevenueBase Database · checked Sep 5, 2026
20	AVA Tech LLC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	11 contacts →
	Indirect evidence “AVA Technology LLC is a software development company which develops agile solutions for public and private SMEs.” Source: RevenueBase Database · checked Sep 5, 2026
21	Slate Studio	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	11 contacts →
	Indirect evidence “Founded in 2009, Slate Studio is a product design and engineering consultancy headquartered in Los Angeles, CA with teams deployed in Europe.” Source: RevenueBase Database · checked Sep 5, 2026
22	JX	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	1-10	11 contacts →
	Indirect evidence “JX is a Digital Product & Service Design Agency” Source: RevenueBase Database · checked Sep 5, 2026
23	Practical Logix	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	10 contacts →
	Indirect evidence “We strategize, build and maintain scalable, cost-effective mobile solutions for enterprises in different verticals and sizes, recent ones being TMZ and Directv/AT & T with much…” Source: RevenueBase Database · checked Sep 5, 2026
24	KLEY	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	1-10	10 contacts →
	Partial evidence “Kley is a branding and digital design agency building products, eCommerce and promotional experiences that create business value by identifying and shaping the ways brands connect…” Source: RevenueBase Database · checked Sep 5, 2026
25	Chimera	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	10 contacts →
	Indirect evidence “Chimera is a design and development agency focused on telling stories through innovative product.” Source: RevenueBase Database · checked Sep 5, 2026

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: platform building firms. 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 platform building firms.
Partial evidence: Its own public description names part of platform building firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name platform building firms. 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 354 platform building firms based in Los Angeles, United States

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Platform building firms based in Los Angeles, United States at a glance

As of Sep 5, 2026

18.6%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

207

11-50

117

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 354 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 platform building firms, 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 Los Angeles, United States whose own description of what they do matches “platform building firms”. 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 platform building firms), 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 platform building firms, and records with no verified work email. Companies headquartered outside Los Angeles 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, 426 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.

Platform building firms by metro in the United States

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 platform building firms, 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 platform building firms are there based in Los Angeles, United States?

RevenueBase identified 354 platform building firms headquartered in Los Angeles, 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?

Qwerty Experts, headquartered in Los Angeles, tops this list with the largest team on record.

Which city in the United States has the most platform building firms?

New York leads the United States with 801 headquartered companies, followed by Austin (358) and Los Angeles (354).

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 426 verified decision-maker contacts tracked across these 354 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 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.