Company lists · Data refreshed September 2026

Top 25 Contact center migration consultants worldwide

RevenueBase identified 1,041 company matches for contact center migration consultants worldwide as of September 2026 and tracks 20,909 professional contacts across them, including 3,234 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for contact center migration consultants worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026. Country and city lists for contact center migration consultants follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built
1,041Companies
20,909Contacts tracked
3,234Verified emails
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The 25 largest contact center migration consultants worldwide

Ranked by team size
Top 25 of 1,041 company matches for contact center migration consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMadrid, SpainHQ recorded Sep 27, 2026n/a1,306 contacts →

Exact match

“At Unisono, for more than 20 years we have been working side by side with our customers across the globe to meet their demands as well as our own.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchHorsham, PA, United StatesHQ recorded Sep 27, 2026501-1,000883 contacts →

Exact match

“If you are interested in growing your business or increasing efficiency, AnswerNet has the expertise, technology, and people to help you take your company to new heights!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchFortaleza, BrazilHQ recorded Sep 27, 20261,001-5,000701 contacts →

Exact match

“A VECTOR SERVIÇOS é uma empresa especializada na criação, implantação e gestão de serviços de Contact Center.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchSan José, Costa RicaHQ recorded Sep 27, 2026501-1,000690 contacts →

Exact match

“We are dedicated to develop competitive advantages for our clients through specialized advice and implementation of innovative telecommunication solutions and Contact Center.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchSão Paulo, BrazilHQ recorded Sep 27, 202651-200518 contacts →

Exact match

“A DDS é uma empresa de tecnologia especializada na integração de sistemas.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchKuala Lumpur, MalaysiaHQ recorded Sep 27, 20261,001-5,000500 contacts →

Exact match

“Transcosmos Malaysia offer integrated call center services such as Call Center, Social Media Management, Voice Of Customer Analysis, Digital Marketing and eCommerce Solution that…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchUnited StatesHQ recorded Sep 27, 2026n/a474 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchMaputo, MozambiqueHQ recorded Sep 27, 2026201-500436 contacts →

Exact match

“Outsourcing de serviços de contact center, com atendimento multicanal.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchBrasília, BrazilHQ recorded Sep 27, 20261,001-5,000404 contacts →

Exact match

“Criada em 1992, a TELLUS é uma empresa com vasta experiência, prestadora de serviços técnicos especializados e integração de soluções de Contact Center, Tecnologias da Informação…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchParis, FranceHQ recorded Sep 27, 20261,001-5,000395 contacts →

Exact match

“Tersea est le premier opérateur de centre de contact qui propose une solution originale et innovante et qui met tout son savoir faire à disposition de ses clients.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchLiège, BelgiumHQ recorded Sep 27, 20261,001-5,000355 contacts →

Exact match

“iKanbi is a Contact Center specialized in advising, developing and managing the remote customer services of any brand.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchMumbai, IndiaHQ recorded Sep 27, 2026201-500348 contacts →

Exact match

“CSInfocomm: Elevating Customer Experience, Redefining Solutions CSInfocomm is a dynamic Solution Provider renowned for elevating customer experience through innovative solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchMumbai, IndiaHQ recorded Sep 27, 2026201-500332 contacts →

Exact match

“The SmartConnect!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchİstanbul, TürkiyeHQ recorded Sep 27, 20261,001-5,000315 contacts →

Exact match

“EchoCCS operational and strategic consultancy services such as call center and business process outsourcing services (Call Center Outsourcing, BPO), advanced call center…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchPrinceton, NJ, United StatesHQ recorded Sep 27, 2026501-1,000264 contacts →

Exact match

“ExpertCallers (a division of Flatworld Solutions) is a global consulting and outsourcing company, with a wealth of experience in providing operational and strategic excellence to…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchLagos, NigeriaHQ recorded Sep 27, 2026501-1,000234 contacts →

Exact match

“ConSol Limited (Consol) is the leading provider of Contact Centre Services, Consultancy Services & Enterprise Solutions in Nigeria.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchGreensboro, NC, United StatesHQ recorded Sep 27, 2026201-500216 contacts →

Exact match

“Schedule your FREE Consultation here: http://bit.ly/2gUckQb Anomaly Squared is a contact center services provider.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchGurgaon, IndiaHQ recorded Sep 27, 2026201-500207 contacts →

Exact match

“At DGLiger, we are architects of transformation, dedicated to enabling organizations to thrive through the development of strong business and technology infrastructures.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchBillerica, MA, United StatesHQ recorded Sep 27, 2026501-1,000192 contacts →

Exact match

“Migrating a contact center to the cloud can seem a strenuous task.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchSacramento, CA, United StatesHQ recorded Sep 27, 202651-200157 contacts →

Exact match

“PTP is a consulting firm wholly focused on helping organizations deliver strategic customer experience solutions that drive revenue.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchLynchburg, VA, United StatesHQ recorded Sep 27, 202651-200152 contacts →

Exact match

“At KECH, our objective is to bring expertise, innovation, and improved productivity into every facet of a successful contact center and service desk operation.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchMedellín, ColombiaHQ recorded Sep 27, 202651-200152 contacts →

Exact match

“We provide comprehensive solutions for the improvement of contact center operations, customer service and collections, with VoIP telephony, CRM, Speech Analytics, omnichannel…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchBasel, SwitzerlandHQ recorded Sep 27, 2026501-1,000149 contacts →

Exact match

“Callpoint bietet Schweizer Call Center Services in den Bereichen Customer Service, Pikettdienst, Helpdesk und Telemarketing an – vor allem für grössere Unternehmen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchGuntur, IndiaHQ recorded Sep 27, 202651-200138 contacts →

Exact match

“Dharani Info Technologies is an information technology and services company based out of Guntur, AndhraPradesh, INDIA.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchKraków, PolandHQ recorded Sep 27, 2026201-500137 contacts →

Exact match

“Our goal is to build a solid and respectable company offering comprehensive services and IT products.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 1,041 contact center migration consultants worldwide

See the full list, filter by size, metro and specialty, and access 3,234 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Contact center migration consultants worldwide at a glance

As of Sep 27, 2026
15.5%Verified-email coverage
20.1Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · Sao Paulo
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
531
11-50
281
51-200
131
201-500
47
501-1,000
25
1,001-5,000
22
5,001-10,000
1

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for contact center migration consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “contact center migration consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 3,234 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Contact center migration consultants by location

7 lists · largest first

Every Contact center migration consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “contact center migration consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many contact center migration consultants are there worldwide?

RevenueBase identified 1,041 company matches for contact center migration consultants worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Grupo Unísono tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most contact center migration consultants?

The United States leads with 265 companies, followed by the United Kingdom (60) and India (44). Every contact center migration consultants list by country and city is linked on this page.

Which city has the most contact center migration consultants?

Sao Paulo leads with 17 company records, followed by London (15) and Chicago (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,234 professional contacts with verified work emails tracked across these 1,041 companies; direct dials are available where recorded.

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 SmartSearch, 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.