Company lists · Data refreshed September 2026

Top 25 Tax filing services based in Los Angeles, United States

Name: Tax filing services 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 22, 2026 142 companies tracked

RevenueBase identified 142 tax filing services headquartered in Los Angeles, United States as of September 2026 and tracks 1,038 professional contacts across them, including 400 with verified work emails. New York is the largest hub.

This list covers tax filing services 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

142Companies

1,038Contacts tracked

400Verified emails

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The 25 largest tax filing services based in Los Angeles, United States

Ranked by team size

Top 25 of 142 tax filing services 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 tax filing services: 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	Singerlewak LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	201-500	487 contacts →
	Indirect 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
2	Golbar And Associates	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	28 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
3	Singh And Associates	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	1-10	18 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
4	Taxplus	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	17 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
5	TAX Hack Accounting Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	16 contacts →
	Partial evidence “Tax Hack Accounting Group is a strategy-first tax, accounting, and advisory firm focused on providing innovative solutions for entrepreneurs, eCommerce businesses, start-ups, and…” Source: RevenueBase Database · checked Sep 22, 2026
6	Black INC TAX Services	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	14 contacts →
	Partial evidence “Most Reviewed 5-Star Tax Firm on the West Coast \| Saving Business Owners Thousands of Dollars Each Year” Source: RevenueBase Database · checked Sep 22, 2026
7	LWA LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “LWA has grown steadily to its present position through organic growth and acquisition of accounting practices.” Source: RevenueBase Database · checked Sep 22, 2026
8	DLD Accountancy, LLP Certified Public Accountants	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	12 contacts →
	Partial evidence “The mission of our firm has been to provide outstanding service and meaningful guidance in the areas of income tax planning, tax return preparation, accounting and business…” Source: RevenueBase Database · checked Sep 22, 2026
9	Tanner Mainstain Glynn & Johnson	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	51-200	12 contacts →
	Indirect evidence “Since its founding in 1975, Tanner Mainstain Glynn & Johnson has built a reputation as one of Los Angeles' largest and most respected business management firms.” Source: RevenueBase Database · checked Sep 22, 2026
10	Dorfman & Company, LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “At Dorfman & Company LLP, we believe that the selection of an accounting firm is one of the most important decisions an individual or business can make.” Source: RevenueBase Database · checked Sep 22, 2026
11	Rivera, Jamjian & Associates, LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	10 contacts →
	Partial evidence “Rivera, Jamjian & Associates is a full service accounting firm providing small and medium businesses and individuals with accounting and income tax services including: •…” Source: RevenueBase Database · checked Sep 22, 2026
12	NA Business Advisors And Cpas, INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	1-10	9 contacts →
	Indirect evidence “NA BUSINESS ADVISORS AND CPAS, INC.(NABA) is a local accounting and consulting firm located in Sherman Oaks, California.” Source: RevenueBase Database · checked Sep 22, 2026
13	Gaytan & Leevan, LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	8 contacts →
	Indirect evidence “GAYTAN & LEEVAN, LLP is an accounting company based out of 11400W Olympic Blvd, Los Angeles, California in the United States.” Source: RevenueBase Database · checked Sep 22, 2026
14	Fenton & Ross Accountancy Corporation	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	8 contacts →
	Indirect evidence “At Fenton & Ross, we are focused on providing our clients the highest quality service and experience.” Source: RevenueBase Database · checked Sep 22, 2026
15	Folk Williams Financial Management	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	1-10	7 contacts →
	Partial evidence “Since 1958, when Walter Williams founded Williams Tax Service, we have provided knowledgeable Tax advice, ensuring that our clients comply with all federal, state and local tax…” Source: RevenueBase Database · checked Sep 22, 2026
16	Alajian Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	1-10	7 contacts →
	Partial evidence “Accounting for Startups and Business Management Headquartered in Los Angeles, Alajian Group is disrupting the traditional accounting paradox - there is more than just taxes.” Source: RevenueBase Database · checked Sep 22, 2026
17	Kaufman & Kabani, Accountants And Consultants	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	7 contacts →
	Indirect evidence “Since our founding in 1981, Kaufman & Kabani has evolved beyond a traditional accounting firm.” Source: RevenueBase Database · checked Sep 22, 2026
18	Pinnacle TAX Services	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	1-10	7 contacts →
	Partial evidence “Pinnacle Tax Services provides a wide range of services to individuals and businesses in a variety of industries.” Source: RevenueBase Database · checked Sep 22, 2026
19	Essential, LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	1-10	6 contacts →
	Partial evidence “We, at EssentialCPA, take pride in providing high-quality tax, accounting and assurance services.” Source: RevenueBase Database · checked Sep 22, 2026
20	Hillhurst TAX Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	1-10	6 contacts →
	Partial evidence “Hillhurst Tax Group - IRS Tax Attorneys is an individual & family services company based out of 2150 HILLHURST AVE, Los Angeles, California, United States.” Source: RevenueBase Database · checked Sep 22, 2026
21	HJB Management, INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	5 contacts →
	Indirect evidence “Our business services encompass corporate, partnership, fiduciary/estate, individual taxation needs, and fringe benefit plans relating to choice of legal entity planning.” Source: RevenueBase Database · checked Sep 22, 2026
22	Smaldino, Lutz, Curtis & Associates, An Accountancy Corporation	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “Smaldino, Lutz, Curtis & Associates is one of the leading firms in and throughout the area.” Source: RevenueBase Database · checked Sep 22, 2026
23	Skinnytax	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	1-10	4 contacts →
	Partial evidence “SkinnyTax closes the gap that exists between top tax attorneys and mainstream software.” Source: RevenueBase Database · checked Sep 22, 2026
24	IRB Grow	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	4 contacts →
	Strong evidence “We take care of personal tax filing, accounting, payroll, business tax filing returns, and bookkeeping with automated technology.” Source: RevenueBase Database · checked Sep 22, 2026
25	irb.tax	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	11-50	4 contacts →
	Partial evidence “We offer Personal and Business Tax Preparation, Income Tax, Taxes, Notary Public, Accounting Services, Bookkeeping, Tax audit, Audit, IRS Audit, Notario Publico, IRS, Property Tax…” Source: RevenueBase Database · checked Sep 22, 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: tax filing services. 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 tax filing services.
Partial evidence: Its own public description names part of tax filing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name tax filing services. 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 142 tax filing services based in Los Angeles, United States

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Tax filing services based in Los Angeles, United States at a glance

As of Sep 22, 2026

38.5%Verified-email coverage

7.3Average contacts per company

1-10Median size (employees)

230.3%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

102

11-50

51-200

201-500

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 142 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 tax filing services, 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 “tax filing services”. 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 tax filing services), 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 tax filing services, 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, 400 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.

Tax filing services 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 tax filing services, 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 tax filing services are there based in Los Angeles, United States?

RevenueBase identified 142 tax filing services 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?

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

Which city has the most tax filing services?

New York leads with 327 headquartered companies, followed by Houston (293) and Miami (160).

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 400 verified decision-maker contacts tracked across these 142 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.