Company lists · Data refreshed September 2026

Top 25 Consultant accounting software companies based in the United States

RevenueBase identified 266 consultant accounting software companies headquartered in the United States as of September 2026 and tracks 1,993 professional contacts across them, including 782 with verified work emails. New York is the largest hub.

This list covers consultant accounting software companies headquartered in the 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 27, 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 27, 2026 86% judged on-target in blind review
266Companies
1,993Contacts tracked
782Verified emails
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The 25 largest consultant accounting software companies based in the United States

Ranked by team size
Top 25 of 266 consultant accounting software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to consultant accounting software 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
1Indirect evidenceWest Hollywood, CA, United StatesHQ checked Sep 27, 2026201-500398 contacts →

Indirect evidence

“Helping architects and engineers run more profitable businesses.”

Source: RevenueBase Database · checked Sep 27, 2026
2Strong evidenceVienna, VA, United StatesHQ checked Sep 27, 2026201-500165 contacts →

Strong evidence

“Since 1983 SSi Consulting has been helping our customers with accounting and ERP software selection, implementation, consulting, support, training and cloud services.”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceAustin, TX, United StatesHQ checked Sep 27, 202651-20084 contacts →

Indirect evidence

“Fourlane is the country's #1 QuickBooks Consulting Firm.”

Source: RevenueBase Database · checked Sep 27, 2026
4Strong evidenceSan Antonio, TX, United StatesHQ checked Sep 27, 202611-5057 contacts →

Strong evidence

“BCS ProSoft is a leading provider of accounting and ERP business management software.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidencePetaluma, CA, United StatesHQ checked Sep 27, 202611-5048 contacts →

Indirect evidence

“Nims & Associates is an information technology (IT) consulting firm.”

Source: RevenueBase Database · checked Sep 27, 2026
6Strong evidencePetaluma, CA, United StatesHQ checked Sep 27, 202611-5047 contacts →

Strong evidence

“AccountMate Software Corporation Founded in 1984, AccountMate develops and markets fully modifiable business accounting software.”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceOcala, United StatesHQ checked Sep 27, 2026n/a47 contacts →

Partial evidence

“DDF Consulting is a software consulting firm specializing in providing first-class software service and support for Sage MAS 90 ERP, Sage MAS 200 ERP and Sage BusinessWorks…”

Source: RevenueBase Database · checked Sep 27, 2026
8Strong evidencePlano, TX, United StatesHQ checked Sep 27, 202611-5041 contacts →

Strong evidence

“BTerrell Group provides personalized, committed service to make the transition to the right accounting software smooth and stress-free.”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceNewark, DE, United StatesHQ checked Sep 27, 202611-5035 contacts →

Indirect evidence

“Need a partner to help you make the best use of Sage Intacct or Microsoft Dynamics?”

Source: RevenueBase Database · checked Sep 27, 2026
10Strong evidenceClearwater, FL, United StatesHQ checked Sep 27, 20261-1030 contacts →

Strong evidence

“FLBSS is a regional business software and consulting company that provides trusted solutions to small and medium sized businesses who have outgrown their accounting and business…”

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceDetroit, MI, United StatesHQ checked Sep 27, 202611-5025 contacts →

Partial evidence

“Are you looking for a solution for your company’s planning, consolidations, and/or budgeting software?”

Source: RevenueBase Database · checked Sep 27, 2026
12Strong evidenceRed Wing, MN, United StatesHQ checked Sep 27, 202611-5025 contacts →

Strong evidence

“Red Wing Software develops and supports accounting, payroll, and financial management software for small-to-mid-sized businesses, agribusinesses, nonprofits, and municipals across…”

Source: RevenueBase Database · checked Sep 27, 2026
13Partial evidencePortland, OR, United StatesHQ checked Sep 27, 202611-5025 contacts →

Partial evidence

“We started Pittman & Brooks because we believe that businesses need more than accountants, they need business consultants who are CPA-certified.”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceAustin, TX, United StatesHQ checked Sep 27, 202611-5024 contacts →

Partial evidence

“Invoice Home is a leading invoice generating software designed for the invoicing needs of small businesses, freelancers, and entrepreneurs worldwide.”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceEagan, MN, United StatesHQ checked Sep 27, 202611-5022 contacts →

Partial evidence

“We are developers of time billing software.”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceWashington, DC, United StatesHQ checked Sep 27, 202651-20021 contacts →

Partial evidence

“IBS is an Accounting, Finance, Management, and Transaction Advisory consulting firm.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceSugar Land, TX, United StatesHQ checked Sep 27, 202611-5019 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidenceJanesville, WI, United StatesHQ checked Sep 27, 202611-5019 contacts →

Partial evidence

“Crystal Computer Consulting was founding in 1990, with the original mission to build customized business management and accounting packages for small to medium businesses.”

Source: RevenueBase Database · checked Sep 27, 2026
19Strong evidenceColumbia, MD, United StatesHQ checked Sep 27, 202611-5016 contacts →

Strong evidence

“PROCAS Accounting Software for Government Contractors.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202611-5016 contacts →

Indirect evidence

“Who are we?”

Source: RevenueBase Database · checked Sep 27, 2026
21Partial evidencePort Charlotte, OR, United StatesHQ checked Sep 27, 202611-5015 contacts →

Partial evidence

“Outsourced Accounting Services provides client-focused services to address all of your firms accounting needs.”

Source: RevenueBase Database · checked Sep 27, 2026
22Strong evidenceCarmel, IN, United StatesHQ checked Sep 27, 202611-5015 contacts →

Strong evidence

“Investment partnership accounting consultants for family offices, hedge funds, and private equity funds Specialized experts in family office operations efficiency enhancements and…”

Source: RevenueBase Database · checked Sep 27, 2026
23Strong evidenceWhite Plains, NY, United StatesHQ checked Sep 27, 202611-5015 contacts →

Strong evidence

“MIG specializes in the implementation of accounting software and business management systems, helping our customers streamline their processes and maximize productivity.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceNy, United StatesHQ checked Sep 27, 202611-5014 contacts →

Indirect evidence

“eBillity's Time Tracker was created to help companies like yours track time and expenses from anywhere in the world, then easily sync with popular business apps like QuickBooks…”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidenceBrookfield, WI, United StatesHQ checked Sep 27, 202611-5013 contacts →

Partial evidence

“VBCC is a Certified Sage Reseller providing expert ERP software consulting, implementation, and support for manufacturers, distributors, and service-based businesses nationwide.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 266 consultant accounting software companies based in the United States

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Consultant accounting software companies based in the United States at a glance

As of Sep 27, 2026
39.2%Verified-email coverage
7.5Average contacts per company
1-10Median size (employees)
4.5%Largest-city concentration · New York
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
192
11-50
57
51-200
13
201-500
3
1,001-5,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 266 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 consultant accounting software 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 the United States whose own description of what they do matches “consultant accounting software 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 consultant accounting software 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 consultant accounting software companies, and records with no verified work email. Companies headquartered outside United States 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, 782 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 27, 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.

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 consultant accounting software 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 consultant accounting software companies are there based in the United States?

RevenueBase identified 266 consultant accounting software companies headquartered in the 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?

BQE Software, headquartered in West Hollywood, tops this list with the largest team on record.

Which city has the most consultant accounting software companies?

New York leads with 12 headquartered companies, followed by Austin (7) and Houston (6).

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 782 verified decision-maker contacts tracked across these 266 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 27, 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.