Company lists · Data refreshed September 2026

Top 22 Business process outsourcing consulting companies based in San Diego, United States

Name: Business process outsourcing consulting companies based in San Diego, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 55 companies tracked

RevenueBase identified 55 business process outsourcing consulting companies headquartered in San Diego, United States as of September 2026 and tracks 1,129 professional contacts across them, including 290 with verified work emails. Across the United States, New York is the largest hub for this category (213 companies); San Diego has 55.

This list covers business process outsourcing consulting companies headquartered in San Diego, 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

55Companies

1,129Contacts tracked

290Verified emails

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The 22 largest business process outsourcing consulting companies based in San Diego, United States

Ranked by team size

Top 22 of 55 business process outsourcing consulting companies based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to business process outsourcing consulting 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	Redial BPO	Strong evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	501-1,000	285 contacts →
	Strong evidence “Redial is a full-service nearshore and offshore business processing outsourcing (BPO) company.” Source: RevenueBase Database · checked Sep 27, 2026
2	Softhq INC	Strong evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	51-200	214 contacts →
	Strong evidence “Softhq consistently delivers Applications services, Infrastructure services, and Business Process Outsourcing (BPO) services globally through a combination of technology knowhow…” Source: RevenueBase Database · checked Sep 27, 2026
3	VAN DEN Boom & Associates LLC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	51-200	137 contacts →
	Indirect evidence “van den Boom & Associates is a life sciences focused firm that that specializes in supporting VC backed life science companies through outsourced finance, accounting, contracts…” Source: RevenueBase Database · checked Sep 27, 2026
4	Sayva Solutions	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	51-200	91 contacts →
	Partial evidence “Sayva Solutions is a professional services firm providing tailored solutions for businesses through project-based consulting, recruiting, and outsourced back-office functions.” Source: RevenueBase Database · checked Sep 27, 2026
5	Sydata INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	51-200	91 contacts →
	Partial evidence “Sydata Consulting, Inc.” Source: RevenueBase Database · checked Sep 27, 2026
6	Raso360	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	51-200	79 contacts →
	Partial evidence “Raso360 is a global leader in onshore consulting and offshore delivery solutions, specializing in top-notch enterprise software platforms such as SAP, Oracle, Salesforce…” Source: RevenueBase Database · checked Sep 27, 2026
7	PBO Advisory Group	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	51-200	55 contacts →
	Partial evidence “At PBO Advisory Group, we assess, outsource, and advise in the areas of accounting & finance, human resources, human capital consulting, and business operations to increase…” Source: RevenueBase Database · checked Sep 27, 2026
8	CA HR Services	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	11-50	20 contacts →
	Partial evidence “California HR Services is a premier Human Resources Consulting Firm, based out of San Diego, California, specializing in providing expert, practical, and cost-effective HR…” Source: RevenueBase Database · checked Sep 27, 2026
9	Back Office Support Solutions	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	11-50	20 contacts →
	Indirect evidence “Back Office Support Solutions is an outsourced accounting and operations firm that creates a tailored approach to support each client's specific needs in accounting/bookkeeping…” Source: RevenueBase Database · checked Sep 27, 2026
10	Excedeo	Indirect evidence	San Diego, United StatesHQ checked Sep 27, 2026	11-50	14 contacts →
	Indirect evidence “Mariela Collins launched Excedeo 18 years ago because she recognized that small and mid-size companies need the full service of an in-house IT Department without the high staffing…” Source: RevenueBase Database · checked Sep 27, 2026
11	Iyouse INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	1-10	11 contacts →
	Indirect evidence “We work with our clients to assess, organize, and execute initiatives through assessment, coaching, and outsourced execution: 1.Technology Strategy & Organizational Growth…” Source: RevenueBase Database · checked Sep 27, 2026
12	Rise Consulting Group, LLC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	11-50	7 contacts →
	Partial evidence “Here at RISE Consulting Group, we offer outsourced accounting, financial, and other support services for privately held businesses, providing timely, accurate and actionable…” Source: RevenueBase Database · checked Sep 27, 2026
13	Multiprizm Solutions	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	11-50	6 contacts →
	Partial evidence “Welcome to Multiprizm Solutions, a leading global outsourcing firm headquartered in the heart of the greater San Diego Metro area.” Source: RevenueBase Database · checked Sep 27, 2026
14	Cowell Consulting, LLC	Strong evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	1-10	4 contacts →
	Strong evidence “We are a management consulting firm in the telecommunications Industry that focuses on project management, program management, project planning, and process improvement.” Source: RevenueBase Database · checked Sep 27, 2026
15	Outsource Pros LLC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Partial evidence “Outsource Pros is an independent BPO, CX, and AI provider matchmaking firm that connects mid-market and enterprise companies with vetted global outsourcing partners, at no cost…” Source: RevenueBase Database · checked Sep 27, 2026
16	Novus Technology Integration, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	11-50	3 contacts →
	Partial evidence “Novus[tek] is an Information Technology (IT) Consulting Firm that focuses on technology solutions for small businesses.” Source: RevenueBase Database · checked Sep 27, 2026
17	Witriol Consulting	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	11-50	1 contacts →
	Partial evidence “At Witriol Consulting, we specialize in delivering expert services in Project/Program Management, Accounting, Finance, and Technology.” Source: RevenueBase Database · checked Sep 27, 2026
18	Glacier Strategies	Indirect evidence	San Diego, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Indirect evidence “Glacier Strategies is a firm that has been designed to take the technology questions off of your plate allowing you to work in your business while we work on it.” Source: RevenueBase Database · checked Sep 27, 2026
19	GB Sterling, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Indirect evidence “gb\|sterling helps businesses optimize all aspects of their B2B sales funnel by focusing on P2P - person-to-person - communications with prospects.” Source: RevenueBase Database · checked Sep 27, 2026
20	Mettano Designs Consulting	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Indirect evidence “Who We Are: Founded by Monetta Plassmeyer.” Source: RevenueBase Database · checked Sep 27, 2026
21	Nicole Walden Consulting	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Indirect evidence “As a seasoned administrative professional, Nicole Walden helps small business owners mend the fray, freeing them to do their important work.” Source: RevenueBase Database · checked Sep 27, 2026
22	Bucher Consulting For Human Resources	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Partial evidence “Bucher Consulting for Human Resources helps employers master HR so you can get back to business.” Source: RevenueBase Database · checked Sep 27, 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: business process outsourcing consulting 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 business process outsourcing consulting companies.
Partial evidence: Its own public description names part of business process outsourcing consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business process outsourcing consulting 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 22 of 55 business process outsourcing consulting companies based in San Diego, United States

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Business process outsourcing consulting companies based in San Diego, United States at a glance

As of Sep 27, 2026

25.7%Verified-email coverage

20.5Average contacts per company

1-10Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 55 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 process outsourcing consulting 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 Diego, United States whose own description of what they do matches “business process outsourcing consulting 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 business process outsourcing consulting 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 business process outsourcing consulting companies, and records with no verified work email. Companies headquartered outside San Diego 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, 290 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.

Business process outsourcing consulting 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 business process outsourcing consulting 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 business process outsourcing consulting companies are there based in San Diego, United States?

RevenueBase identified 55 business process outsourcing consulting companies headquartered in San Diego, 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?

Redial BPO, headquartered in San Diego, tops this list with the largest team on record.

Which city in the United States has the most business process outsourcing consulting companies?

New York leads the United States with 213 headquartered companies, followed by Houston (121) and Atlanta (117). San Diego has 55.

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 290 verified decision-maker contacts tracked across these 55 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.