Company lists · Data refreshed September 2026

Top 19 Business accounting firms based in Tempe, United States

RevenueBase identified 30 business accounting firms headquartered in Tempe, United States as of September 2026 and tracks 127 professional contacts across them, including 65 with verified work emails. New York is the largest hub.

This list covers business accounting firms headquartered in Tempe, 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 23, 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 23, 2026 86% judged on-target in blind review
30Companies
127Contacts tracked
65Verified emails
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The 19 largest business accounting firms based in Tempe, United States

Ranked by team size
Top 19 of 30 business accounting firms based in Tempe, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business accounting 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceTempe, AZ, United StatesHQ checked Sep 23, 202611-5018 contacts →

Strong evidence

“Founded in 2004, Rivers & Moorehead is a Phoenix, Arizona based consulting firm that assists the accounting and finance departments of public and private companies with a variety…”

Source: RevenueBase Database · checked Sep 23, 2026
2Indirect evidenceTempe, AZ, United StatesHQ checked Sep 23, 202611-5014 contacts →

Indirect evidence

“Exciting News: We’ve Merged to Serve You Better!”

Source: RevenueBase Database · checked Sep 23, 2026
3Strong evidenceTempe, AZ, United StatesHQ checked Sep 23, 202611-5013 contacts →

Strong evidence

“Founded in 1987, Mansperger Patterson & McMullin, PLC is a full service public accounting firm located in Tempe, Arizona.”

Source: RevenueBase Database · checked Sep 23, 2026
4Indirect evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-108 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 23, 2026
5Indirect evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-108 contacts →

Indirect evidence

“Providing management services to small businesses, bookkeeping, budgeting, strategy, compliance, business process automation, and financing.”

Source: RevenueBase Database · checked Sep 23, 2026
6Strong evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-107 contacts →

Strong evidence

“We are a full service accounting firm offering a wide array of services including audit, tax, and other business consulting services for many industries, including tribes and…”

Source: RevenueBase Database · checked Sep 23, 2026
7Indirect evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-107 contacts →

Indirect evidence

“We empower healthcare entrepreneurs with the freedom to step away from the services chair and build the right team to help grow their practice while maintaining their desired…”

Source: RevenueBase Database · checked Sep 23, 2026
8Strong evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-106 contacts →

Strong evidence

“Castel Accounting Solutions PLLC is a company based out of 512 E Southern Ave Unit A, Tempe, Arizona, United States.”

Source: RevenueBase Database · checked Sep 23, 2026
9Strong evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-105 contacts →

Strong evidence

“Splaver & Splaver, CPA, PLC is a full service tax, accounting and business consulting firm located in Tempe, AZ.”

Source: RevenueBase Database · checked Sep 23, 2026
10Strong evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-104 contacts →

Strong evidence

“Providing tax, accounting, and payroll services valley wide.”

Source: RevenueBase Database · checked Sep 23, 2026
11Strong evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-104 contacts →

Strong evidence

“AA Tax CPA, LLC is a full service accounting firm with offices in Phoenix and Tempe, Arizona.”

Source: RevenueBase Database · checked Sep 23, 2026
12Strong evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-103 contacts →

Strong evidence

“Public accounting firm.”

Source: RevenueBase Database · checked Sep 23, 2026
13Strong evidenceTempe, AZ, United StatesHQ checked Sep 23, 202611-502 contacts →

Strong evidence

“Clark Accounting & Tax is an accounting company based out of 501 E Plaza Circle, Litchfield Park, AZ, United States.”

Source: RevenueBase Database · checked Sep 23, 2026
14Indirect evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

“The office of Benjamin T Koeller CPA, PLLC consists of Certified Public Accountants, tax and business advisors, and bookkeepers who assist out clients in creating a significant…”

Source: RevenueBase Database · checked Sep 23, 2026
15Strong evidenceTempe, United StatesHQ checked Sep 23, 20261-102 contacts →

Strong evidence

“Certified Public Accounting and Advisory Sevices”

Source: RevenueBase Database · checked Sep 23, 2026
16Indirect evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

“We specialize in Small Business tax and bookkeeping services.”

Source: RevenueBase Database · checked Sep 23, 2026
17Strong evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-102 contacts →

Strong evidence

“Growth | Cashflow | Profitability | Tax | Accounting | Full Service CPA Acceler8 helps entrepreneurs and business owners realize their dreams and goals by creating business value…”

Source: RevenueBase Database · checked Sep 23, 2026
18Indirect evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-101 contacts →

Indirect evidence

“Tilton & Co.”

Source: RevenueBase Database · checked Sep 23, 2026
19Indirect evidenceTempe, AZ, United StatesHQ checked Sep 23, 20261-101 contacts →

Indirect evidence

“An Arizona CPA Firm specializing in Real Estate transactions and professionals, professionals from law, medicine and architecture as well as companies involved in construction and…”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 19 of 30 business accounting firms based in Tempe, United States

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Business accounting firms based in Tempe, United States at a glance

As of Sep 23, 2026
51.2%Verified-email coverage
4.2Average contacts per company
1-10Median size (employees)
1850.0%Largest-city concentration · New York
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
6

Email recency for this list is measured across the whole United States list rather than for Tempe, so it is reported there. Company counts and contact totals on this page are exact for Tempe, over 30 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 business accounting 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 Tempe, United States whose own description of what they do matches “business accounting 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 business accounting 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 business accounting firms, and records with no verified work email. Companies headquartered outside Tempe 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, 65 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 23, 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.

Business accounting 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 business accounting 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 business accounting firms are there based in Tempe, United States?

RevenueBase identified 30 business accounting firms headquartered in Tempe, 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?

Rivers & Moorehead, Pllc, headquartered in Tempe, tops this list with the largest team on record.

Which city has the most business accounting firms?

New York leads with 555 headquartered companies, followed by Houston (400) and Los Angeles (268).

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 65 verified decision-maker contacts tracked across these 30 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 23, 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.