Company lists · Data refreshed November 2026

Top 25 Customer communication agencies worldwide

Name: Customer communication agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 21,116 companies tracked

RevenueBase identified 21,116 company matches for customer communication agencies worldwide as of November 2026 and tracks 306,144 professional contacts across them, including 55,201 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for customer communication agencies 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 November 6, 2026. Country and city lists for customer communication agencies 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 Nov 6, 2026 How this list was built

21,116Companies

306,144Contacts tracked

55,201Verified emails

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The 25 largest customer communication agencies worldwide

Ranked by team size

Top 25 of 21,116 company matches for customer communication agencies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Alorica	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	10001+	56,404 contacts →
	Exact match “We’re passionate about creating customers for life by designing experiences that elevate your brand.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Harte Hanks	Exact match	Chelmsford, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,400 contacts →
	Exact match “We are The Customer Company®, a global leader in Customer Experience (CX), Omnichannel Marketing, Data Services, Customer Care, Fulfillment, and Logistics.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	SINCH	Exact match	Stockholm, SwedenHQ recorded Nov 6, 2026	1,001-5,000	3,132 contacts →
	Exact match “Sinch’s vision is to connect every business with every customer, everywhere in the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Diversified	Exact match	Plano, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,744 contacts →
	Exact match “At Diversified, we leverage the best in technology and ongoing advisory services to transform businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Marketing Werks	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	n/a	2,265 contacts →
	Exact match “Marketing Werks has become Product Connections, a fully integrated engagement agency specializing in omnichannel solutions that build relationships between brands and consumers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Actionline	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,234 contacts →
	Exact match “Actionline is dedicated to connecting brands with their customers, strengthening their presence and value at every touchpoint.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Marketizon	Exact match	London, United KingdomHQ recorded Nov 6, 2026	n/a	1,989 contacts →
	Exact match “Marketizon is the leader in developing innovative, multi-channel marketing technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Infocision Management Corporation	Exact match	Akron, OH, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,947 contacts →
	Exact match “InfoCision is an award-winning contact center partner trusted by leading brands for over 40 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Improfit	Exact match	Montevideo, UruguayHQ recorded Nov 6, 2026	n/a	1,851 contacts →
	Exact match “Improfit es una agencia de comunicación corporativa y organizacional fundada en en Montevideo, Uruguay.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	BRM S.A.S	Exact match	Bogotá, ColombiaHQ recorded Nov 6, 2026	1,001-5,000	1,667 contacts →
	Exact match “Las conexiones más poderosas surgen de interacciones sencillas que marcan la diferencia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Concilig	Exact match	Bauru, BrazilHQ recorded Nov 6, 2026	5,001-10,000	1,435 contacts →
	Exact match “A Concilig construiu uma reputação inquestionável com grandes empresas brasileiras por ser embasada por muita tecnologia e por eficácia na prestação de serviços que oferece.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Softmarketing Soluções EM Comunicação	Exact match	Curitiba, BrazilHQ recorded Nov 6, 2026	5,001-10,000	1,400 contacts →
	Exact match “Solucionar, humanizar, conectar e personalizar são o que definem a jornada oferecida pela SoftMarketing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	FSB Comunicação	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	501-1,000	1,387 contacts →
	Exact match “FSB Comunicações is an Integrated Communications agency focused on results.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Attentive	Exact match	London, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,384 contacts →
	Exact match “Attentive® knows personalized customer experiences require both powerful technology and the right people behind it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Serviceplan Group	Exact match	Munich, GermanyHQ recorded Nov 6, 2026	5,001-10,000	1,377 contacts →
	Exact match “Serviceplan Group is the largest independent, partner-led agency group in Europe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	APS Group	Exact match	Stockport, United KingdomHQ recorded Nov 6, 2026	501-1,000	1,303 contacts →
	Exact match “We’ve been delivering marketing and communications since 1961.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Cosmote Evalue	Exact match	Athens, GreeceHQ recorded Nov 6, 2026	5,001-10,000	1,291 contacts →
	Exact match “Empowering growth.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Dialog Direct	Exact match	Highland Park, TX, United StatesHQ recorded Nov 6, 2026	10001+	1,265 contacts →
	Exact match “Dialog Direct helps brands manage and personalize their multichannel, multi-touch customer journeys using data-driven marketing and customer engagement solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Bill Gosling Outsourcing India	Exact match	Barrie, CanadaHQ recorded Nov 6, 2026	1,001-5,000	1,084 contacts →
	Exact match “Bill Gosling Outsourcing India Private Limited (Formerly MattsenKumar).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Brasil Monks	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,047 contacts →
	Exact match “Monks is the global, data-driven, digital-native operating brand of S4 Capital plc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	IVE Group	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	933 contacts →
	Exact match “IVE Group is Australia’s largest diversified marketing company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Talentpop	Exact match	Costa Mesa, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	876 contacts →
	Exact match “TalentPop is a leading Customer Service Management Agency that works with over 750 fast-growing E-Commerce brands to revolutionize their customer service and turn customer service…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Banco Caroni	Exact match	Caracas, VenezuelaHQ recorded Nov 6, 2026	1,001-5,000	862 contacts →
	Exact match “Responsable de actividades de Mercadeo, Publicidad, Comunicaciones Corporativas, Calidad y Gestión Comercial de la Red de 122 agencias a Nivel Nacional.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Madison Digital Experience Marketing	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	1,001-5,000	841 contacts →
	Exact match “En MADISON MK prestamos servicios comerciales y de marketing para todas las fases del ciclo de vida del consumidor, acompañando a las marcas para definir la estrategia y acciones…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	SEO Discovery Private Limited	Exact match	Mohali, IndiaHQ recorded Nov 6, 2026	201-500	802 contacts →
	Exact match “SEO Discovery is a global leader in next-generation digital marketing services, solutions, and consulting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “customer communication agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 21,116 customer communication agencies worldwide

See the full list, filter by size, metro and specialty, and access 55,201 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Customer communication agencies worldwide at a glance

As of Nov 6, 2026

18.0%Verified-email coverage

14.5Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

13,277

11-50

5,971

51-200

1,237

201-500

329

501-1,000

1,001-5,000

5,001-10,000

10001+

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 customer communication agencies are linked below.
What qualifies: Company records worldwide whose business descriptions match “customer communication agencies” 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 55,201 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 November 6, 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.

Customer communication agencies by location

134 lists · largest first

Every Customer communication agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “customer communication agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many customer communication agencies are there worldwide?

RevenueBase identified 21,116 company matches for customer communication agencies worldwide as of November 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?

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

Which country has the most customer communication agencies?

The United States leads with 3,521 companies, followed by Brazil (1,880) and France (1,268). Every customer communication agencies list by country and city is linked on this page.

Which city has the most customer communication agencies?

Sao Paulo leads with 519 company records, followed by London (367) and Paris (242).

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 55,201 professional contacts with verified work emails tracked across these 21,116 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 November 6, 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.