Company lists · Data refreshed October 2026

Top 8 Customer service inbound & outbound voice, chat & e-mail suppliers based in Bangalore, India

RevenueBase identified 79 company matches for customer service inbound & outbound voice, chat & e-mail suppliers associated with Bangalore, India as of October 2026 and tracks 2,571 professional contacts across them, including 46 with verified work emails. Across India, Bangalore is the largest hub for this category.

This list covers company matches for customer service inbound & outbound voice, chat & e-mail suppliers associated with Bangalore, India, 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 October 19, 2026.

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 Oct 19, 2026 How this list was built
79Companies
2,571Contacts tracked
46Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 8 largest customer service inbound & outbound voice, chat & e-mail suppliers based in Bangalore, India

Ranked by team size
Top 8 of 79 company matches for customer service inbound & outbound voice, chat & e-mail suppliers based in Bangalore, India, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 19, 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 matchBangalore, IndiaHQ recorded Oct 19, 20261,001-5,000436 contacts →

Exact match

“ExpertCallers, a Flatworld Solutions company, is a well-established and reputed modern day call center outsourcing company.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
2Exact matchBangalore, IndiaHQ recorded Oct 19, 20261,001-5,000344 contacts →

Exact match

“We specialize in end-to-end outsourcing across all industries and functions, including: Customer Support & Call Center Inbound/outbound call handling, technical support, live…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
3Exact matchBangalore, IndiaHQ recorded Oct 19, 202651-20091 contacts →

Exact match

“Welcome to Valuestream Business Solutions!”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
4Exact matchBangalore, IndiaHQ recorded Oct 19, 2026201-50066 contacts →

Exact match

“Mainstay offshore is an award winning offshore services provider providing Technical services in the areas of network, Dialup, browser, email, OS, hardware, software and web…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
5Exact matchBangalore, IndiaHQ recorded Oct 19, 2026201-50056 contacts →

Exact match

“G7TS is a confluence of talent and expertise in the field of Customer Service, Client management and Operational delivery.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
6Exact matchBangalore, IndiaHQ recorded Oct 19, 202651-20048 contacts →

Exact match

“Syrow is a 24x7 Customer Service provider for Businesses.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
7Exact matchBangalore, IndiaHQ recorded Oct 19, 2026201-50048 contacts →

Exact match

“We not only take customer experience lifecycle, and back office work off your plate, we make them better by providing a dedicated and highly trained team who can train and…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
8Exact matchBangalore, IndiaHQ recorded Oct 19, 202651-20032 contacts →

Exact match

“GlobalDial Services is a trusted BPO partner helping companies worldwide improve efficiency, reduce costs, and enhance customer experience.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase

Showing 8 of 79 customer service inbound & outbound voice, chat & e-mail suppliers based in Bangalore, India

See the full list, filter by size, metro and specialty, and access 46 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Customer service inbound & outbound voice, chat & e-mail suppliers based in Bangalore, India at a glance

As of Oct 19, 2026
1.8%Verified-email coverage
32.5Average contacts per company
51-200Median size (employees)
Oct 19, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
27
51-200
20
201-500
13
501-1,000
3
1,001-5,000
5
10001+
1

Email recency for this list is measured across the whole India list rather than for Bangalore, so it is reported there. Company counts and contact totals on this page are exact for Bangalore, over 79 companies.

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.
What qualifies
Company records associated with Bangalore, India whose business descriptions match “customer service inbound & outbound voice, chat & e-mail suppliers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 46 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 October 19, 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.

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 service inbound & outbound voice, chat & e-mail suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many customer service inbound & outbound voice, chat & e-mail suppliers are there based in Bangalore, India?

RevenueBase identified 79 company matches for customer service inbound & outbound voice, chat & e-mail suppliers associated with Bangalore, India as of October 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?

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

Which city in India has the most customer service inbound & outbound voice, chat & e-mail suppliers?

Bangalore leads India with 79 company records, followed by Noida (70) and Kolkata (55).

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 46 professional contacts with verified work emails tracked across these 79 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 October 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 79 customer service inbound & outbound voice, chat & e-mail suppliers based in Bangalore, India. Start with a free account, no credit card.

Download this list →

Related lists

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.