Company lists · Data refreshed September 2026

Top 25 Accounting firm IT support companies based in Los Angeles, United States

RevenueBase identified 283 accounting firm IT support companies headquartered in Los Angeles, United States as of September 2026 and tracks 3,914 professional contacts across them, including 1,905 with verified work emails. New York is the largest hub.

This list covers accounting firm IT support companies 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 22, 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 22, 2026 86% judged on-target in blind review
283Companies
3,914Contacts tracked
1,905Verified emails
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The 25 largest accounting firm IT support companies based in Los Angeles, United States

Ranked by team size
Top 25 of 283 accounting firm IT support companies based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to accounting firm IT support 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
1Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 2026501-1,000877 contacts →

Partial evidence

“HCVT is Southern California’s leading public accounting firm, the largest headquartered in Los Angeles, and the third-largest in the Western U.S.”

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 2026201-500487 contacts →

Partial evidence

“SingerLewak has a 60-year history of serving clients as one of the leading West Coast based public accounting firms; SingerLewak understands the needs of business owners and…”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 2026201-500449 contacts →

Indirect evidence

“At GHJ, we go beyond numbers.”

Source: RevenueBase Database · checked Sep 22, 2026
4Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 2026201-500261 contacts →

Partial evidence

“Gursey | Schneider LLP is a premier Los Angeles accounting firm headquartered in Century City, the center of the financial and entertainment community.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202651-200237 contacts →

Indirect evidence

“CNM LLP is now part of CrossCountry Consulting.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceLos Angeles, United StatesHQ checked Sep 22, 2026201-500175 contacts →

Indirect evidence

“Indinero is on a mission to help every business realize its potential.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202651-20077 contacts →

Indirect evidence

“At RBZ, we've thought long and hard about our people, our clients, our community, and how best to serve them and help them reach their goals going forward.”

Source: RevenueBase Database · checked Sep 22, 2026
8Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202651-20063 contacts →

Partial evidence

“Founded in February 2005, CKP, LLP (formerly Choi, Kim & Park, LLP) is the largest Korean-American accounting firm in the United States doing SEC practice and providing other…”

Source: RevenueBase Database · checked Sep 22, 2026
9Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5041 contacts →

Partial evidence

“Fineman West & Company provides a full spectrum of accounting, tax, and business advisory services to a variety of different industries.”

Source: RevenueBase Database · checked Sep 22, 2026
10Strong evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5035 contacts →

Strong evidence

“Computer Network Service and IT Support.”

Source: RevenueBase Database · checked Sep 22, 2026
11Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5028 contacts →

Partial evidence

“Golbar and Associates is a full service public accounting and consulting firm specializing in providing a unique and effective approach to rendering tax, accounting and consulting…”

Source: RevenueBase Database · checked Sep 22, 2026
12Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5026 contacts →

Partial evidence

“SKMC, LLP (SKMC) is a premiere, Los Angeles-based accounting firm providing high net worth clients with personalized and expert audit, accounting, tax and business advisory…”

Source: RevenueBase Database · checked Sep 22, 2026
13Strong evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5023 contacts →

Strong evidence

“SYZYGY is a women-owned accounting and CFO-level consulting firm offering a full suite of back-office support including HR and production services.”

Source: RevenueBase Database · checked Sep 22, 2026
14Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5022 contacts →

Partial evidence

“Feedwire is the best boutique IT (Information Technology) consulting firm in Los Angeles.”

Source: RevenueBase Database · checked Sep 22, 2026
15Strong evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202651-20020 contacts →

Strong evidence

“ETS has been providing managed IT services, technical help desk support, computer support, and consulting since 2011.”

Source: RevenueBase Database · checked Sep 22, 2026
16Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5019 contacts →

Partial evidence

“Quigley & Miron is a full service certified public accounting firm specializing in the nonprofit sector.”

Source: RevenueBase Database · checked Sep 22, 2026
17Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5019 contacts →

Partial evidence

“ALT Consulting is the trusted IT partner for law firms, financial services, and other professional organizations across North America.”

Source: RevenueBase Database · checked Sep 22, 2026
18Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5018 contacts →

Partial evidence

“Avano is a California-based accounting firm that handles both accounting and taxation services.”

Source: RevenueBase Database · checked Sep 22, 2026
19Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5018 contacts →

Partial evidence

“Advanced Networks is a managed IT and cybersecurity provider headquartered in Los Angeles, with offices in Orange County and San Francisco, serving organizations across Southern…”

Source: RevenueBase Database · checked Sep 22, 2026
20Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 20261-1018 contacts →

Partial evidence

“The professionals at Singh and Associates have more than 70 years of combined experience providing tax, accounting, and business consulting services on behalf of: Contractors…”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5016 contacts →

Indirect evidence

“Founded over 25 years ago, Weinberg is an international full-service CPA firm serving clients in the U.S, Canada and the Pacific Rim.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5016 contacts →

Indirect evidence

“SERVICES: CFO’s Domain, a SolomonEdwards Company, is a place for CFO’s and their stakeholders.”

Source: RevenueBase Database · checked Sep 22, 2026
23Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5016 contacts →

Partial evidence

“Frontline has been managing IT operations for companies in Los Angeles for over 15 years and consistently ranks as one of the top managed IT service providers in the greater Los…”

Source: RevenueBase Database · checked Sep 22, 2026
24Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 202611-5015 contacts →

Indirect evidence

“We are more than just partners; we are your biggest fans.”

Source: RevenueBase Database · checked Sep 22, 2026
25Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 22, 20261-1014 contacts →

Partial evidence

“Simple Accounting Solutions delivers accounting, tax, and assurance services to US-based businesses, powered by AI and built for the modern business owner.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 283 accounting firm IT support companies based in Los Angeles, United States

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Accounting firm IT support companies based in Los Angeles, United States at a glance

As of Sep 22, 2026
48.7%Verified-email coverage
13.8Average contacts per company
1-10Median size (employees)
225.8%Largest-city concentration · New York
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
191
11-50
75
51-200
9
201-500
6
501-1,000
1

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 283 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 accounting firm IT support 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 Los Angeles, United States whose own description of what they do matches “accounting firm IT support 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 accounting firm IT support 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 accounting firm IT support companies, 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, 1,905 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 22, 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.

Accounting firm IT support companies 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 accounting firm IT support 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 accounting firm IT support companies are there based in Los Angeles, United States?

RevenueBase identified 283 accounting firm IT support companies 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?

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

Which city has the most accounting firm IT support companies?

New York leads with 639 headquartered companies, followed by Houston (392) and Los Angeles (283).

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 1,905 verified decision-maker contacts tracked across these 283 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 22, 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.