Company lists · Data refreshed September 2026

Top 15 Professional services firms based in Pasadena, United States

Name: Professional services firms based in Pasadena, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 34 companies tracked

RevenueBase identified 34 company matches for professional services firms associated with Pasadena, United States as of September 2026 and tracks 307 professional contacts across them, including 165 with verified work emails. Across the United States, New York is the largest hub for this category (620 companies); Pasadena has 34.

This list covers company matches for professional services firms associated with Pasadena, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. 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 RevenueBase SmartSearch · Exact Recorded Sep 5, 2026 How this list was built

34Companies

307Contacts tracked

165Verified emails

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The 15 largest professional services firms based in Pasadena, United States

Ranked by team size

Top 15 of 34 company matches for professional services firms based in Pasadena, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Lucas Horsfall	Exact match	Pasadena, United StatesHQ recorded Sep 5, 2026	51-200	113 contacts →
	Exact match “Founded in 1957 and based in Pasadena, California, Lucas Horsfall is a full-service financial and advisory firm serving a diverse client base across the Southwest.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
2	Krost Cpas & Consultants	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	51-200	34 contacts →
	Exact match “Established in 1939 in Pasadena, California, KROST, is a full-service Certified Public Accounting and Consulting firm serving clients across various industries.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
3	Harrington Group Cpa's, LLP	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	11-50	23 contacts →
	Exact match “Harrington Group, Certified Public Accountants, LLP is a certified public accounting and consulting firm with offices in Los Angeles and San Francisco.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
4	Temo Arjani LLP	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	11-50	20 contacts →
	Exact match “Temo Arjani, LLP has an amazing reputation for providing our clients the highest quality tax, audit, and accounting services with a personal touch.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
5	Maginnis Knechtel Mcintyre LLP	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	11-50	13 contacts →
	Exact match “Maginnis Knechtel & McIntyre LLP is a full-service accounting, auditing and tax firm serving clients throughout the Western U.S.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6	Gavigan & Co, Cpa's	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	1-10	9 contacts →
	Exact match “Traditional CPA services plus outsourced financial management services for non-profit and for-profit enterprises.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
7	Gregory, Fillas, Buschauer & Kroischke, LLP	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	1-10	9 contacts →
	Exact match “GREGORY, FILLAS, BUSCHAUER & KROISCHKE, LLP is an accounting company based out of 150 S.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8	Roger A Brown & Company	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	11-50	8 contacts →
	Exact match “Roger A.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9	Margolis & Villegas Accountancy Corporation	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	1-10	7 contacts →
	Exact match “A CPA firm experienced service in the areas of tax, audit, review, and financial operations management.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
10	Jenkins Bowler LLP	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	1-10	6 contacts →
	Exact match “We are a prestigious, boutique CPA firm located in the heart of the beautiful business district of Pasadena, California since the 1960s.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11	Baity & Assoc. TAX And Financial Services, INC	Exact match	Pasadena, TX, United StatesHQ recorded Sep 5, 2026	1-10	5 contacts →
	Exact match “Our mission is to provide comprehensive tax and financial services to our clients in order to enable them to meet their personal and business goals more effectively.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
12	Pacific Accounting Group	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	1-10	5 contacts →
	Exact match “Our CPA firm provides outstanding service to our clients because of our dedication to the three underlying principles of professionalism, responsiveness and quality.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
13	Michael DI Pietro, CPA	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	1-10	3 contacts →
	Exact match “Michael Di Pietro C.P.A.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14	Sandra Tapia, Cpa, P.C	Exact match	Pasadena, TX, United StatesHQ recorded Sep 5, 2026	1-10	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
15	Brumm & Associates, INC	Exact match	Pasadena, CA, United StatesHQ recorded Sep 5, 2026	1-10	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “professional services firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 15 of 34 professional services firms based in Pasadena, United States

See the full list, filter by size, metro and specialty, and access 165 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Professional services firms based in Pasadena, United States at a glance

As of Sep 5, 2026

53.7%Verified-email coverage

9.0Average contacts per company

1-10Median size (employees)

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for Pasadena, so it is reported there. Company counts and contact totals on this page are exact for Pasadena, over 34 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Pasadena, United States whose business descriptions match “professional services firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 165 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Professional services firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “professional services firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many professional services firms are there based in Pasadena, United States?

RevenueBase identified 34 company matches for professional services firms associated with Pasadena, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Lucas Horsfall tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most professional services firms?

New York leads the United States with 620 company records, followed by Houston (420) and Atlanta (304). Pasadena has 34.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 165 professional contacts with verified work emails tracked across these 34 companies; direct dials are available where recorded.

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.