Company lists · Data refreshed September 2026

Top 25 Back office software companies based in the United States

RevenueBase identified 384 back office software companies headquartered in the United States as of September 2026 and tracks 13,493 professional contacts across them, including 1,600 with verified work emails. New York is the largest hub.

This list covers back office 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
384Companies
13,493Contacts tracked
1,600Verified emails
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The 25 largest back office software companies based in the United States

Ranked by team size
Top 25 of 384 back office 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 back office 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 evidenceWindsor, CT, United StatesHQ checked Sep 27, 202610001+3,035 contacts →

Indirect evidence

“DST Systems, Inc.”

Source: RevenueBase Database · checked Sep 27, 2026
2Strong evidenceSanta Clara, CA, United StatesHQ checked Sep 27, 2026n/a676 contacts →

Strong evidence

“Data Entry Solution is one of the leading back office solution providers based in California.”

Source: RevenueBase Database · checked Sep 27, 2026
3Strong evidenceBoca Raton, FL, United StatesHQ checked Sep 27, 2026501-1,000496 contacts →

Strong evidence

“Crane Consulting & Outsourcing (CCO) is a global provider of back-office support services to a myriad of financial service organizations.”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceDover, DE, United StatesHQ checked Sep 27, 2026201-500447 contacts →

Indirect evidence

“Velan Info Services is a leading multidisciplinary service provider with its clients across the globe.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceMontebello, NY, United StatesHQ checked Sep 27, 2026501-1,000289 contacts →

Indirect evidence

“Are you a multi-facility healthcare operator?”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceRonkonkoma, NY, United StatesHQ checked Sep 27, 2026201-500153 contacts →

Partial evidence

“VAI Company Overview VAI is a leading independent mid-market ERP software developer renowned for its flexible solutions and ability to automate critical business functions for the…”

Source: RevenueBase Database · checked Sep 27, 2026
7Strong evidenceMiami, FL, United StatesHQ checked Sep 27, 2026201-500128 contacts →

Strong evidence

“Paradigm provides a full back office solution for home care agencies who work with the VA, Medicaid, Workers' Compensation and other 3rd party payers.”

Source: RevenueBase Database · checked Sep 27, 2026
8Partial evidenceGarden Grove, CA, United StatesHQ checked Sep 27, 202651-20089 contacts →

Partial evidence

“MIE Solutions offers a variety of innovative enterprise and cloud-based software products for integration of business data, allowing organizations to make informed decisions for…”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceLas Vegas, NV, United StatesHQ checked Sep 27, 202651-20086 contacts →

Indirect evidence

“As the author and developer the FDM4 Enterprise Solution, we have evolved as a leading provider of an integrated ERP, WMS, E-Commerce (B2B/B2C), CRM and Decoration.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceKing Of Prussia, PA, United StatesHQ checked Sep 27, 202611-5079 contacts →

Partial evidence

“CSSI is a software consulting and BackOffice services company helping investment management firms get the most out of their portfolio management systems.”

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceSan Antonio, TX, United StatesHQ checked Sep 27, 202611-5057 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceGreat Neck, NY, United StatesHQ checked Sep 27, 202651-20056 contacts →

Indirect evidence

“Business Solution Partners is the nation’s leading provider of enterprise resource planning and e-commerce products and solutions for the financial services, manufacturing…”

Source: RevenueBase Database · checked Sep 27, 2026
13Strong evidenceConcord, CA, United StatesHQ checked Sep 27, 2026201-50056 contacts →

Strong evidence

“Core to our lineup of back-office solutions is revenue cycle management (RCM).”

Source: RevenueBase Database · checked Sep 27, 2026
14Strong evidenceOmaha, NE, United StatesHQ checked Sep 27, 202651-20055 contacts →

Strong evidence

“BHMI is a highly regarded provider of software solutions that are designed to cater to the back-office processing of electronic payment transactions.”

Source: RevenueBase Database · checked Sep 27, 2026
15Strong evidenceOrlando, FL, United StatesHQ checked Sep 27, 202611-5054 contacts →

Strong evidence

“A young & dynamic company set up by medical professionals to provide back-office services for small and medium health care practices in the USA.”

Source: RevenueBase Database · checked Sep 27, 2026
16Strong evidenceSalinas, CA, United StatesHQ checked Sep 27, 202651-20051 contacts →

Strong evidence

“SSCS has been the leader in the field of retail petroleum and convenience store back office technology since 1981.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceChicago, IL, United StatesHQ checked Sep 27, 2026201-50051 contacts →

Indirect evidence

“Your Quiet Advantage”

Source: RevenueBase Database · checked Sep 27, 2026
18Strong evidenceMaitland, FL, United StatesHQ checked Sep 27, 202611-5050 contacts →

Strong evidence

“MIS is an insurance services company that offers “Back Office Solutions” to Insurance Providers.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceBonita Springs, FL, United StatesHQ checked Sep 27, 202651-20050 contacts →

Indirect evidence

“Since 1986, DataWorks, Inc.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceKirkland, WA, United StatesHQ checked Sep 27, 2026501-1,00049 contacts →

Indirect evidence

“Acumatica is a leading innovator in cloud ERP with customers located around the world.”

Source: RevenueBase Database · checked Sep 27, 2026
21Partial evidenceAlpharetta, GA, United StatesHQ checked Sep 27, 202611-5048 contacts →

Partial evidence

“Visual K is committed to the success of its customers, helping them to optimize their productivity and processes, through software that provides updated and integrated information.”

Source: RevenueBase Database · checked Sep 27, 2026
22Partial evidencePetaluma, CA, United StatesHQ checked Sep 27, 202611-5047 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
23Partial evidenceBeverly, MA, United StatesHQ checked Sep 27, 202651-20044 contacts →

Partial evidence

“Visibility Corporation is a leading developer and supplier of business software solutions designed for the unique needs of project-based, engineer-to-order and mixed mode…”

Source: RevenueBase Database · checked Sep 27, 2026
24Strong evidenceNew Rochelle, NY, United StatesHQ checked Sep 27, 2026201-50044 contacts →

Strong evidence

“Reckon Data Solutions is constant outsourcing solution for Title Insurance, Appraisal, Freight, BPO, Insurance, Accounting & Finance back office services.”

Source: RevenueBase Database · checked Sep 27, 2026
25Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 202651-20043 contacts →

Strong evidence

“NexFirm provides outsourced back office services to small and midsized law firms.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 384 back office software companies based in the United States

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Back office software companies based in the United States at a glance

As of Sep 27, 2026
11.9%Verified-email coverage
35.1Average contacts per company
11-50Median size (employees)
3.4%Largest-city concentration · New York
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
137
11-50
168
51-200
55
201-500
16
501-1,000
5
1,001-5,000
1
5,001-10,000
1
10001+
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 384 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 back office 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 “back office 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 back office 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 back office 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, 1,600 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 back office 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 back office software companies are there based in the United States?

RevenueBase identified 384 back office 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?

DST Systems, headquartered in Windsor, tops this list with the largest team on record.

Which city has the most back office software companies?

New York leads with 13 headquartered companies, followed by Houston (8) and Dallas (7).

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 1,600 verified decision-maker contacts tracked across these 384 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.