Company lists · Data refreshed September 2026

Top 25 Professional services firms based in Phoenix, United States

RevenueBase identified 123 professional services firms headquartered in Phoenix, United States as of September 2026 and tracks 1,638 professional contacts across them, including 194 with verified work emails. New York is the largest hub.

This list covers professional services firms headquartered in Phoenix, 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, how directly it supports the match, 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 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
123Companies
1,638Contacts tracked
194Verified emails
Unlock all 123 companies Free signup · no credit card · 500 free credits

The 25 largest professional services firms based in Phoenix, United States

Ranked by team size
Top 25 of 123 professional services firms based in Phoenix, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names professional services firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Atlas Cpas & AdvisorsIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 2026n/a48

“Atlas CPAs & Advisors is part of the Atlas Business Navigators family of firms to better serve our clients and community by providing a group of highly qualified individuals with…”

Source: company website · checked Sep 5, 2026
2
Tull, Forsberg & Olson PLCIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 202611-5017

“We are a full-service accounting firm that has been a part of the Arizona community since it was founded in 1950.”

Source: company website · checked Sep 5, 2026
3
Duran Business GroupIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 202611-5015

“As a full-service accounting firm, with over 15 years of experience & based in Phoenix, AZ, we specialize in comprehensive accounting solutions, tax strategies, and payroll…”

Source: company website · checked Sep 5, 2026
4
Rios Business AdvisorsIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 20261-1010

“I am a Business Broker with Transworld Business Advisors, a Financial Planner & Tax Preparer with CalChoice Financial, and the founder of Eye Level to High Level – Rios Business…”

Source: company website · checked Sep 5, 2026
5Phoenix, AZ, United StatesHQ checked Sep 5, 202611-509

“Grass, Coffey & Scharlau (GCS) began in 1980 when Leon Grass started his CPA practice with a heart for serving the valley.”

Source: company website · checked Sep 5, 2026
6
Conover Asay Cpas, PllcIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 20261-108

“Conover Asay CPAs, PLLC (“Conover Asay”) is committed to the industries and clientele for which we have become trusted business advisers over the years and are dedicated to…”

Source: company website · checked Sep 5, 2026
7Phoenix, AZ, United StatesHQ checked Sep 5, 20261-108

“H&H accounting and tax services was formed with convenience of our customers in mind.”

Source: company website · checked Sep 5, 2026
8Phoenix, AZ, United StatesHQ checked Sep 5, 202611-508

“Phocus Accounting and Tax combines the products you need with the relationship that few can offer.”

Source: company website · checked Sep 5, 2026
9Phoenix, AZ, United StatesHQ checked Sep 5, 202611-507
Source: company website · checked Sep 5, 2026
10
Ullmann & Company PCIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 20261-107

“ULLMANN & COMPANY, PC is an accounting company based out of 4647 NORTH 32ND STREET, PHOENIX, Arizona, United States.”

Source: company website · checked Sep 5, 2026
11
KinlineIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 20261-107

“Kinline provides accounting and advisory to businesses and individuals, allowing them to focus on goals, growth, and success.”

Source: company website · checked Sep 5, 2026
12
NexaccStrong evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 202611-507

“At NEXACC We are your Business Growing Partner through providing professional services and Advices to you and help your business make numerical based decision by handling your…”

Source: company website · checked Sep 5, 2026
13
Hacker Accounting, LLCIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 202651-2007
Source: company website · checked Sep 5, 2026
14Phoenix, AZ, United StatesHQ checked Sep 5, 20261-107

“A.M.”

Source: company website · checked Sep 5, 2026
15
Vedu PLCIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 20261-107

“Business and Tax LAW FIRM Specializing in Commercial Law & Litigation, Tax & Regulatory Compliance We do Business Law and Tax to help you grow, win and relax.™”

Source: company website · checked Sep 5, 2026
16Phoenix, AZ, United StatesHQ checked Sep 5, 20261-106

“THE RELIANT TEAM - Estate Planning Attorneys - Paralegals - Fiduciary Investment Advisors - Insurance Professionals - Client Concierge Service”

Source: company website · checked Sep 5, 2026
17
Aniles & Company CPA FirmIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 202611-506

“Local Certified Public Accounting firm supporting non profit and for profit organizations in the areas of accounting, financial management, financial advisory, tax and fiscal…”

Source: company website · checked Sep 5, 2026
18Phoenix, AZ, United StatesHQ checked Sep 5, 20261-106

“R.C.”

Source: company website · checked Sep 5, 2026
19
Heritage Advisors Cpa, LLCIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 202611-505

“If you are a leader in small to medium sized business, or a high networth individual, or a non-profit/trust/estate that needs tax, accounting, audit or fractional CFO services…”

Source: company website · checked Sep 5, 2026
20
Copper Ledger PllcIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 20261-105

“A Modern Tax & Accounting Team With an Old Soul”

Source: company website · checked Sep 5, 2026
21
Phoenix Accounting ServicesIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 20261-105

“Phoenix Accounting Services is licensed in AZ and specializes in Accounting.”

Source: company website · checked Sep 5, 2026
22Phoenix, AZ, United StatesHQ checked Sep 5, 20261-104

“KORE Accounting Solutions is a future-focused, cloud-based management accounting firm specializing in providing legal professionals and business owners with the data and insights…”

Source: company website · checked Sep 5, 2026
23Phoenix, AZ, United StatesHQ checked Sep 5, 202611-504

“We are a full service accounting firm conveniently located near the Central Corridor in Phoenix, in the majestic Arizona desert.”

Source: company website · checked Sep 5, 2026
24
Adding Machine.comIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 5, 20261-104

“ADDINGMACHINE.COM P.C.”

Source: company website · checked Sep 5, 2026
25Phoenix, AZ, United StatesHQ checked Sep 5, 202611-504

“When it comes to your finances, working with a CPA can give you peace of mind.”

Source: company website · checked Sep 5, 2026

Showing 25 of 123 professional services firms based in Phoenix, United States

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

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 593 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
94
11-50
26
51-200
2
1,001-5,000
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Phoenix, over 123 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 professional services firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Phoenix, United States whose own description of what they do matches “professional services firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among professional services firms, and records with no verified work email. Companies headquartered outside Phoenix 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 an evidence 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, 194 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.

Professional services firms by metro in the United States

Frequently asked

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

RevenueBase identified 123 professional services firms headquartered in Phoenix, 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?

Atlas Cpas & Advisors, headquartered in Phoenix, tops this list with the largest team on record.

Which city has the most professional services firms?

New York leads with 593 headquartered companies, followed by Houston (420) and Atlanta (304).

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 194 verified decision-maker contacts tracked across these 123 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 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.