Company lists · Data refreshed September 2026

Top 25 Legacy system modernization companies based in San Francisco, United States

Name: Legacy system modernization companies based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 68 companies tracked

RevenueBase identified 68 legacy system modernization companies headquartered in San Francisco, United States as of September 2026 and tracks 1,515 professional contacts across them, including 451 with verified work emails. New York is the largest hub.

This list covers legacy system modernization companies headquartered in San Francisco, 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 20, 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 20, 2026 86% judged on-target in blind review

68Companies

1,515Contacts tracked

451Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest legacy system modernization companies based in San Francisco, United States

Ranked by team size

Top 25 of 68 legacy system modernization companies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to legacy system modernization 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Akraya, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	201-500	336 contacts →
	Indirect evidence “Akraya is your trusted partner for Digital Transformation.” Source: RevenueBase Database · checked Sep 20, 2026
2	MINDK	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	51-200	124 contacts →
	Indirect evidence “MindK is a software development and IT consulting company that helps businesses build software products, automate business processes, modernize technology and infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026
3	Ensolvers	Indirect evidence	San Francisco, United StatesHQ checked Sep 20, 2026	51-200	121 contacts →
	Indirect evidence “Ensolvers specializes in software development, architecture, product development, outsourcing, testing, and building dedicated teams for end-to-end software solutions.” Source: RevenueBase Database · checked Sep 20, 2026
4	ATOM	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	501-1,000	113 contacts →
	Indirect evidence “Atom is a leading modern technology services company providing the most innovative cloud and digital transformation solutions, with carefully curated “living” services across…” Source: RevenueBase Database · checked Sep 20, 2026
5	Fusionstorm	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	201-500	108 contacts →
	Indirect evidence “Computacenter has acquired FusionStorm!” Source: RevenueBase Database · checked Sep 20, 2026
6	Sourcebits Digital	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	51-200	101 contacts →
	Indirect evidence “Sourcebits-Ascendum Digital is a trusted digital transformation accelerator providing early access to next-generation technologies, disruptive innovation, and unique customer…” Source: RevenueBase Database · checked Sep 20, 2026
7	RAW Engineering	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	51-200	97 contacts →
	Indirect evidence “Raw Engineering’s Innovative digital solutions and services are trusted by the world’s best Fortune 500 Enterprises, Sports & Entertainment companies and Startups to provide…” Source: RevenueBase Database · checked Sep 20, 2026
8	WTA	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	201-500	73 contacts →
	Indirect evidence “We enhance customer experiences, build solutions, modernize applications and leverage technology with data Analytics to create real value.” Source: RevenueBase Database · checked Sep 20, 2026
9	Spiceorb	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	51-200	47 contacts →
	Indirect evidence “Formed by stalwarts in business and technology services, SpiceOrb wants to be your first choice of partner to realize your organization' strategic and tactical goals.” Source: RevenueBase Database · checked Sep 20, 2026
10	DPP Tech	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	51-200	45 contacts →
	Indirect evidence “DPP Tech is a trusted technology solutions partner driving digital transformation for commercial and government enterprises.” Source: RevenueBase Database · checked Sep 20, 2026
11	Quantazone	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	45 contacts →
	Indirect evidence “Business consulting company serves at the intersection of business and technology.” Source: RevenueBase Database · checked Sep 20, 2026
12	AKAVA	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “Akava is a premier technology consultancy specializing in digital transformation, technology due diligence, and value creation services.” Source: RevenueBase Database · checked Sep 20, 2026
13	Turgon AI	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	16 contacts →
	Partial evidence “At Turgon, we're rewriting the data modernization playbook with AI agents and human experts working together.” Source: RevenueBase Database · checked Sep 20, 2026
14	Help4access	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	51-200	12 contacts →
	Strong evidence “Help4Access is a boutique consulting firm specializing in enterprise architecture, AI-augmented legacy modernization, and digital strategy.” Source: RevenueBase Database · checked Sep 20, 2026
15	Bearcloud INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	51-200	10 contacts →
	Indirect evidence “BEAR Cloud supports our customers in transforming their business operations into a secure, cost effective and supportable IT environment.” Source: RevenueBase Database · checked Sep 20, 2026
16	BKJ Digital	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	10 contacts →
	Partial evidence “We specialize in digital transformation that delivers smarter internal systems, and stronger customer experiences across your organization.” Source: RevenueBase Database · checked Sep 20, 2026
17	C Infinity Solutions	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “C Infinity Solutions is a technology consulting and digital engineering services firm that transforms the way our clients do business - and we make the consulting experience…” Source: RevenueBase Database · checked Sep 20, 2026
18	Debreeze Interactive	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “deBreeze is a digital transformation agency specializing in HealthTech, FinTech, and Hospitality.” Source: RevenueBase Database · checked Sep 20, 2026
19	Kissinger Group	Indirect evidence	San Francisco, United StatesHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Kissinger Group is a boutique consulting firm specializing in enterprise-level transformations.” Source: RevenueBase Database · checked Sep 20, 2026
20	Cloud9 Technology Consulting	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “Technology is complex and you need a partner to help source the right solutions to meet your changing needs.” Source: RevenueBase Database · checked Sep 20, 2026
21	Strategic Enterprise Solutions, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Strategic Enterprise Solutions, Inc.(SESI) is an enterprise architecture and technology holding company founded in 1989.” Source: RevenueBase Database · checked Sep 20, 2026
22	Silicon Valley Consulting Group	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “Our Mission:'Business Process Optimization' Before Technology Considerations!” Source: RevenueBase Database · checked Sep 20, 2026
23	AHM Technology	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “Reimagine.” Source: RevenueBase Database · checked Sep 20, 2026
24	Simplicit	Indirect evidence	San Francisco, United StatesHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “A boutique consulting / staff augmentation firm focusing on digital transformation and integrated product strategy, management and design.” Source: RevenueBase Database · checked Sep 20, 2026
25	Hyperfine	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Hyperfine is a technical strategy company giving businesses the confidence to lead their digital transformation journeys.” Source: RevenueBase Database · checked Sep 20, 2026

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: legacy system modernization companies. 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 legacy system modernization companies.
Partial evidence: Its own public description names part of legacy system modernization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name legacy system modernization companies. 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 68 legacy system modernization companies based in San Francisco, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 451 reachable decision-makers.

Free signup · no credit card

View the full list →

Legacy system modernization companies based in San Francisco, United States at a glance

As of Sep 20, 2026

29.8%Verified-email coverage

22.3Average contacts per company

11-50Median size (employees)

298.5%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 68 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 legacy system modernization 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 San Francisco, United States whose own description of what they do matches “legacy system modernization 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 legacy system modernization 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 legacy system modernization companies, and records with no verified work email. Companies headquartered outside San Francisco 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, 451 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 20, 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.

Legacy system modernization companies 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 legacy system modernization 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 legacy system modernization companies are there based in San Francisco, United States?

RevenueBase identified 68 legacy system modernization companies headquartered in San Francisco, 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?

Akraya, INC, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most legacy system modernization companies?

New York leads with 203 headquartered companies, followed by Austin (148) and Houston (131).

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 451 verified decision-maker contacts tracked across these 68 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 68 legacy system modernization companies based in San Francisco, United States. Start with a free account, no credit card.

Download this list →

Related lists

Legacy system modernization companies by geography

Browse the directory

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.