Company lists · Data refreshed September 2026
Top 25 Accounting software migration specialists based in the United States
RevenueBase identified 177 accounting software migration specialists headquartered in the United States as of September 2026 and tracks 1,420 professional contacts across them, including 411 with verified work emails. San Francisco is the largest hub.
This list covers accounting software migration specialists 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.
The 25 largest accounting software migration specialists based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 307 contacts → | ||||
Indirect evidence “Founded in 1984 in San Diego, DSD Business Systems is an award-winning technology partner with 45 offices across North America, serving small- to medium-sized organizations.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 165 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 107 contacts → | ||||
Strong evidence “Over the past 12 years, MMC Convert has successfully completed over data conversions from various accounting software platforms to leading solutions like Xero, QuickBooks Online…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 85 contacts → | ||||
Indirect evidence “Data Driven and Data First!” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 35 contacts → | ||||
Partial evidence “Oracle NetSuite Partner #1 Cloud ERP | ConventionSuite - Event & Trade Show Management Software: Exhibit House Software | Exhibition Management Software | Experiential Marketing…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 30 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 28 contacts → | ||||
Partial evidence “Data Strategies Interchange is a leading provider of large-scale data migration and conversion services to Fortune 500 and Global companies that need to upgrade from older…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 26 contacts → | ||||
Partial evidence “We are a technology consulting firm with roots in accounting.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 25 contacts → | ||||
Strong evidence “The Back Office is a team of accounting, development, and administrative professionals that have been providing seamless accounting integration software and data conversion…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 17 contacts → | ||||
Partial evidence “Since NEO3 has been providing accounting and technology solutions to companies throughout North America.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 17 contacts → | ||||
Partial evidence “Most businesses don't have a software problem.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 17 contacts → | ||||
Indirect evidence “Stewart Technologies helps businesses harness their potential by securing their networks, streamlining systems and processes, and optimizing workflow.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 16 contacts → | ||||
Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 16 contacts → | ||||
Indirect evidence “Siegel Solutions is New England's Premier QuickBooks consulting and bookkeeping firm.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 15 contacts → | ||||
Partial evidence “Outsourced Accounting Services provides client-focused services to address all of your firms accounting needs.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 15 contacts → | ||||
Partial evidence “To say we're a data migration company would be an understatement.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 15 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 contacts → | ||||
Partial evidence “Mendelson Consulting was founded in January 1992 with the purpose of finding the right solutions for small and medium business' accounting technology needs and implementing those…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 14 contacts → | ||||
Indirect evidence “Equation Technologies provides business management solutions to small and mid-sized companies.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 13 contacts → | ||||
Indirect evidence “With over a 100 years of experience, we have worked help companies focus on their core business while we streamline all the work that consumes your biggest resource, TIME!” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 12 contacts → | ||||
Strong evidence “K&R Consulting Group was established in 1994 as a firm specializing in the installation and support of Sage MAS90 Accounting Software.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 11 contacts → | ||||
Strong evidence “To help our clients select and implement the right accounting software to run their business.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Indirect evidence “Devine Consulting turns financials into tools that help companies grow.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Indirect evidence “Implementing and maintaining a new ERP system is no small task.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 9 contacts → | ||||
Strong evidence “Xcellerated Solutions LLC (XS) is a Utah-based company that specializes in helping Small-to-Medium sized businesses (SMB) with software for their accounting, inventory, warehouse…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: accounting software migration specialists. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names accounting software migration specialists.
- Partial evidence
- Its own public description names part of accounting software migration specialists, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name accounting software migration specialists. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 177 accounting software migration specialists based in the United States
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Accounting software migration specialists based in the United States at a glance
As of Sep 27, 2026Companies by employee count
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 177 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 accounting software migration specialists, 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 “accounting software migration specialists”. 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 accounting software migration specialists), 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 accounting software migration specialists, 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, 411 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 accounting software migration specialists, 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 accounting software migration specialists are there based in the United States?
RevenueBase identified 177 accounting software migration specialists 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?
DSD Business Systems, headquartered in San Diego, tops this list with the largest team on record.
Which city has the most accounting software migration specialists?
San Francisco leads with 6 headquartered companies, followed by Chicago (5) and Houston (5).
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 411 verified decision-maker contacts tracked across these 177 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.
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