Company lists · Data refreshed September 2026

Top 25 Calling companies based in India

Name: Calling companies based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 173 companies tracked

RevenueBase identified 173 calling companies headquartered in India as of September 2026 and tracks 6,357 professional contacts across them, including 482 with verified work emails. Mumbai is the largest hub.

This list covers calling companies headquartered in India, 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 21, 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 21, 2026 86% judged on-target in blind review

173Companies

6,357Contacts tracked

482Verified emails

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The 25 largest calling companies based in India

Ranked by team size

Top 25 of 173 calling companies based in India, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to calling 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	Airtel Business	Indirect evidence	Gurgaon, IndiaHQ checked Sep 21, 2026	10001+	2,760 contacts →
	Indirect evidence “The B2B arm of Bharti Airtel, we are India's leading provider of secure and reliable connectivity, technology, and communications solutions.” Source: RevenueBase Database · checked Sep 21, 2026
2	Deepija Telecom PVT LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 21, 2026	201-500	527 contacts →
	Indirect evidence “Telecom Applications are one of the fastest-changing technologies of today.” Source: RevenueBase Database · checked Sep 21, 2026
3	Syntel By Arvind	Indirect evidence	Pune, IndiaHQ checked Sep 21, 2026	201-500	298 contacts →
	Indirect evidence “Syntel is the Telecom Division of Arvind Limited, a flagship company of the INR 50 billion Lalbhai Group.” Source: RevenueBase Database · checked Sep 21, 2026
4	Pulse Telesystems	Indirect evidence	Chennai, IndiaHQ checked Sep 21, 2026	51-200	175 contacts →
	Indirect evidence “Pulse Telesystems is a leading telecom solution provider in India, offering businesses personalized telecom solutions that meet their growing needs and beyond.” Source: RevenueBase Database · checked Sep 21, 2026
5	Gurusons Communications PVT LTD	Indirect evidence	New Delhi, IndiaHQ checked Sep 21, 2026	51-200	135 contacts →
	Indirect evidence “Gurusons Communications Private Limitedis the most trusted Resource for Voice, Chat, Video and Data communication management solutions in the country.” Source: RevenueBase Database · checked Sep 21, 2026
6	Unified Voice Communication PVT LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 21, 2026	51-200	131 contacts →
	Indirect evidence “Unifiedvoice is a globally recognized VoIP service and solutions provider.” Source: RevenueBase Database · checked Sep 21, 2026
7	Nokia India Privatelimited	Indirect evidence	Gurgaon, IndiaHQ checked Sep 21, 2026	501-1,000	89 contacts →
	Indirect evidence “Nokia India PrivateLimited is a telecommunications company based out of Tower A&B, 5th Floor, Sectot 25-A,DLF City Phase 3, Gurgaon, Haryana, India.” Source: RevenueBase Database · checked Sep 21, 2026
8	Hodusoft	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	51-200	76 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
9	Viva Digitally	Indirect evidence	Chennai, IndiaHQ checked Sep 21, 2026	51-200	56 contacts →
	Indirect evidence “For over a decade, Viva Digitally has been redefining the way businesses communicate.” Source: RevenueBase Database · checked Sep 21, 2026
10	Superfone	Indirect evidence	Bangalore, IndiaHQ checked Sep 21, 2026	11-50	52 contacts →
	Indirect evidence “Superfone is India's 1st Business Phone Number built to help small businesses manage their customer interactions better and grow their business.” Source: RevenueBase Database · checked Sep 21, 2026
11	Dcnet Solutions India PVT LTD	Indirect evidence	Bengaluru South, IndiaHQ checked Sep 21, 2026	51-200	38 contacts →
	Indirect evidence “Since 2010, DCNet Solutions India has been at the forefront of VoIP, IP Telephony, FTTH, Unified Communications, and Networking solutions, delivering innovative, reliable, and…” Source: RevenueBase Database · checked Sep 21, 2026
12	Bridgei2p Telecommunication PVT LTD	Indirect evidence	Bengaluru, IndiaHQ checked Sep 21, 2026	51-200	35 contacts →
	Indirect evidence “Bridgei2p Solutions comes across as a VoIP (Voice Over Internet Protocol) solutions provider whose aim is to provide class leading VoIP technology to various industry…” Source: RevenueBase Database · checked Sep 21, 2026
13	AE Telelink Systems LTD	Indirect evidence	New Delhi, IndiaHQ checked Sep 21, 2026	11-50	31 contacts →
	Indirect evidence “AE Telelink Systems Ltd is a telecommunications company based out of 106, Rakesh Deep Building Gulmohar Enclave Commercial Complex, New Delhi, Delhi, India.” Source: RevenueBase Database · checked Sep 21, 2026
14	KBG Services PVT LTD	Indirect evidence	New Delhi, IndiaHQ checked Sep 21, 2026	51-200	30 contacts →
	Indirect evidence “KBG Services Pvt Ltd is a Telecommunications company located in D-583 C R Park, New Delhi, Delhi, India.” Source: RevenueBase Database · checked Sep 21, 2026
15	Finecons	Indirect evidence	Chennai, IndiaHQ checked Sep 21, 2026	51-200	28 contacts →
	Indirect evidence “Established in providing voice communication and networking technologies to businesses in India, Finecons over the past two decades has grown as a leading provider of IT…” Source: RevenueBase Database · checked Sep 21, 2026
16	Andrew Telecommunications India Private Limited	Indirect evidence	Salcette, IndiaHQ checked Sep 21, 2026	11-50	26 contacts →
	Indirect evidence “ANDREW TELECOMMUNICATIONS INDIA PRIVATE LIMITED is a Telecommunications company located in Plot No N-2, Salcette, Goa, India.” Source: RevenueBase Database · checked Sep 21, 2026
17	Peakair	Indirect evidence	Kochi, IndiaHQ checked Sep 21, 2026	11-50	21 contacts →
	Indirect evidence “Peak Telecom has been persistent for over a decade and a half in bringing the world closer through its various telephony solutions.” Source: RevenueBase Database · checked Sep 21, 2026
18	Mishtel Services Private Limited	Indirect evidence	Noida, IndiaHQ checked Sep 21, 2026	11-50	20 contacts →
	Indirect evidence “Welcome to Mishtel services Pvt Ltd, a main pioneer in cloud communication arrangements.” Source: RevenueBase Database · checked Sep 21, 2026
19	Codcor Technology Solutions PVT LTD	Indirect evidence	Ernakulam, IndiaHQ checked Sep 21, 2026	51-200	19 contacts →
	Indirect evidence “Vision:" We consider the fast pace of technological development in this modern world and our team would explore and experiment with new innovations in the services.” Source: RevenueBase Database · checked Sep 21, 2026
20	NAM Infocom	Indirect evidence	Chennai, IndiaHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “NAM InfoCom offers a suite of cutting-edge communication solutions for enterprises, including three flagship products: eNCALL, eNCOM, and eNWEB, meticulously designed to meet the…” Source: RevenueBase Database · checked Sep 21, 2026
21	Bharat Voip Communications	Indirect evidence	Hyderabad, IndiaHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect evidence “Bharat FiberNet is the High-speed Internet Service Providers in Hyderabad.” Source: RevenueBase Database · checked Sep 21, 2026
22	Exceleed Consulting And Technologies	Indirect evidence	Bengaluru, IndiaHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence “Exceleed Consulting and Technologies is a technology specialist company based in Bengaluru.” Source: RevenueBase Database · checked Sep 21, 2026
23	Ankur Telecom PVT LTD	Indirect evidence	Kolkata, IndiaHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “We’ve been providing telecommunication solutions for over 30 years and during that time we have built up a wealth of experience that we constantly call upon to help us find the…” Source: RevenueBase Database · checked Sep 21, 2026
24	SMS Cloud Technologies PVT LTD	Indirect evidence	Noida, IndiaHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence “Express IVR” Brand under SMS Cloud Technologies Pvt Ltd, founded in 2016 is India’s open cloud voice communication platform with an aim to redefining business communications…” Source: RevenueBase Database · checked Sep 21, 2026
25	Optima Technologies	Indirect evidence	Bangalore, IndiaHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence “OPTIMA TECHNOLOGIES leading provider of complete office communications and IT solutions dedicated to designing, integrating, and customizing advanced communication technologies…” Source: RevenueBase Database · checked Sep 21, 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: calling 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 calling companies.
Partial evidence: Its own public description names part of calling companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name calling 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 173 calling companies based in India

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Calling companies based in India at a glance

As of Sep 21, 2026

7.6%Verified-email coverage

36.7Average contacts per company

11-50Median size (employees)

14.5%Largest-city concentration · Mumbai

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 173 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 calling 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 India whose own description of what they do matches “calling 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 calling 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 calling companies, and records with no verified work email. Companies headquartered outside India 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, 482 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 21, 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.

Calling companies by metro

Calling companies in Mumbai25

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 calling 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 calling companies are there based in India?

RevenueBase identified 173 calling companies headquartered in India 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?

Airtel Business, headquartered in Gurgaon, tops this list with the largest team on record.

Which city has the most calling companies?

Mumbai leads with 25 headquartered companies, followed by New Delhi (18) and Bangalore (14).

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 482 verified decision-maker contacts tracked across these 173 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 21, 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.