Company lists · Data refreshed September 2026

Top 25 Operational technology security companies based in India

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

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 602 companies tracked

RevenueBase identified 602 operational technology security companies headquartered in India as of September 2026 and tracks 11,298 professional contacts across them, including 2,105 with verified work emails. Hyderabad is the largest hub.

This list covers operational technology security 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 14, 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 14, 2026 86% judged on-target in blind review

602Companies

11,298Contacts tracked

2,105Verified emails

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The 25 largest operational technology security companies based in India

Ranked by team size

Top 25 of 602 operational technology security companies based in India, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to operational technology security 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	SISA	Partial evidence	Bengaluru, IndiaHQ checked Sep 14, 2026	201-500	743 contacts →
	Partial evidence “SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Source: RevenueBase Database · checked Sep 14, 2026
2	Acpl Systems	Partial evidence	Gurgaon, IndiaHQ checked Sep 14, 2026	201-500	398 contacts →
	Partial evidence “ACPL Systems is a pure-play cybersecurity services company focused on helping organisations translate security investments into measurable outcomes.” Source: RevenueBase Database · checked Sep 14, 2026
3	Esec Forte Technologies	Strong evidence	Gurugram, IndiaHQ checked Sep 14, 2026	201-500	363 contacts →
	Strong evidence “eSec Forte® Technologies is a CMMi Level 3 certified Global Consulting and IT Security Services company with offerings across Cloud Security, Cyber Forensics, Malware Detection…” Source: RevenueBase Database · checked Sep 14, 2026
4	Kritilabs Technologies	Partial evidence	Chennai, IndiaHQ checked Sep 14, 2026	201-500	355 contacts →
	Partial evidence “KritiLabs helps companies across verticals to effectively manage their remote assets on a real-time basis through its IoT security platform, ALS.” Source: RevenueBase Database · checked Sep 14, 2026
5	Techdefence	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 14, 2026	201-500	340 contacts →
	Indirect evidence “TechDefence Labs (TechD Cybersecurity Limited) Award-winning \| Innovative \| Visionary We empower organizations across the globe to secure their applications, networks, and digital…” Source: RevenueBase Database · checked Sep 14, 2026
6	Infopercept	Partial evidence	Ahmedabad, IndiaHQ checked Sep 14, 2026	201-500	304 contacts →
	Partial evidence “Infopercept is a global cybersecurity company dedicated to transforming how organizations perceive and implement security.” Source: RevenueBase Database · checked Sep 14, 2026
7	Secureyes	Indirect evidence	Bangalore, IndiaHQ checked Sep 14, 2026	201-500	270 contacts →
	Indirect evidence “SecurEyes is a global cybersecurity specialist firm offering advisory plus consulting services and reg-tech products solving for cybersecurity challenges so that business leaders…” Source: RevenueBase Database · checked Sep 14, 2026
8	Essen Vision Software	Partial evidence	Mumbai, IndiaHQ checked Sep 14, 2026	201-500	229 contacts →
	Partial evidence “We are Essen Vision, ‘Digital Security Specialists’ whose sole focus for more than 28 years has been to provide digital protection that unlocks the true value of your security…” Source: RevenueBase Database · checked Sep 14, 2026
9	Sattrix Information Security	Partial evidence	Ahmedabad, IndiaHQ checked Sep 14, 2026	201-500	212 contacts →
	Partial evidence “In the current era of hyper-connectivity, securing your digital assets is no longer optional; it's essential.” Source: RevenueBase Database · checked Sep 14, 2026
10	Valuepoint Systems Private Limited	Partial evidence	Bangalore, IndiaHQ checked Sep 14, 2026	1,001-5,000	205 contacts →
	Partial evidence “Ashok Prabhu, co-founded Value Point Techsol with Shanbhag and Sampath way back in 2012 and successfully steered it into one of the leading Cyber Security Integrator and…” Source: RevenueBase Database · checked Sep 14, 2026
11	Secure Network Solutions India Private Limited	Partial evidence	Chennai, IndiaHQ checked Sep 14, 2026	201-500	205 contacts →
	Partial evidence “Since we've been the 'Doctors of Network Security' for Indian enterprises, diagnosing vulnerabilities, prescribing the right solutions, and standing by our customers 24x7.” Source: RevenueBase Database · checked Sep 14, 2026
12	Cyberpwn Technologies	Indirect evidence	Bangalore, IndiaHQ checked Sep 14, 2026	51-200	166 contacts →
	Indirect evidence “CyberPWN is a pure-play cybersecurity consultancy and advisory firm With extensive experience in the cybersecurity field and a consultative approach, we are committed to ensuring…” Source: RevenueBase Database · checked Sep 14, 2026
13	Payatu	Indirect evidence	Pune, IndiaHQ checked Sep 14, 2026	51-200	156 contacts →
	Indirect evidence “At Payatu we believe in following one’s passion and with that thought, we have created a world class team of researchers and executors who are bending the rules to provide state…” Source: RevenueBase Database · checked Sep 14, 2026
14	Vinca Cyber	Partial evidence	Bangalore, IndiaHQ checked Sep 14, 2026	51-200	143 contacts →
	Partial evidence “Vinca Cyber is a specialist in the domain of Cyber Security, our focus is to ensure Security Posture of our customers remain always in a state of optimal preparedness.” Source: RevenueBase Database · checked Sep 14, 2026
15	Raksha Technologies	Partial evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	141 contacts →
	Partial evidence “Raksha Technologies: Empowering Your Cybersecurity Journey Raksha Technologies is a leading cybersecurity solutions provider, dedicated to partnering with organizations across…” Source: RevenueBase Database · checked Sep 14, 2026
16	Iema Research & Development Pvt. Ltd. - Iemlabs	Indirect evidence	Kolkata, IndiaHQ checked Sep 14, 2026	51-200	131 contacts →
	Indirect evidence “IEMLabs is an ISO 27001:2022, ISO 27032:2023 & ISO 9001:2015 certified, CERT-In empanelled, and CMMI L3 company.” Source: RevenueBase Database · checked Sep 14, 2026
17	Cattleya Technosys Pvt. LTD	Partial evidence	Bangalore, IndiaHQ checked Sep 14, 2026	201-500	123 contacts →
	Partial evidence “Cattleya Technosys is an IOT Technology based, product Company in the business of Electronics & Video Surveillance, Central Monitoring, Command & Control Center services, Asset…” Source: RevenueBase Database · checked Sep 14, 2026
18	Securium Solutions Private Limited	Partial evidence	Noida, IndiaHQ checked Sep 14, 2026	11-50	112 contacts →
	Partial evidence “Securium Solutions Private Limited is a CERT-In Empanelled cybersecurity company helping organizations secure their digital infrastructure against evolving cyber threats.” Source: RevenueBase Database · checked Sep 14, 2026
19	Techowl	Indirect evidence	Surat, IndiaHQ checked Sep 14, 2026	51-200	108 contacts →
	Indirect evidence “TechOwl is a CERT-In empanelled and ISO 27001 certified cybersecurity company helping enterprises stay ahead of evolving cyber threats through intelligent detection, automated…” Source: RevenueBase Database · checked Sep 14, 2026
20	Psy9 Security	Partial evidence	Ahmedabad, IndiaHQ checked Sep 14, 2026	11-50	106 contacts →
	Partial evidence “PSY9 Security is a rapidly expanding IT service management company that specializes in cutting-edge information security services and training.” Source: RevenueBase Database · checked Sep 14, 2026
21	Inspira Enterprise India Private Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 14, 2026	51-200	87 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
22	Infoziant	Partial evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	86 contacts →
	Partial evidence “Infoziant IT Solutions Inc is a Hall of Fame Information Security company, recognized by industry giants like Apple, Microsoft, Google, United Nations, Australian Govt, Dutch…” Source: RevenueBase Database · checked Sep 14, 2026
23	Cybernxt Solutions LLP	Indirect evidence	Mumbai, IndiaHQ checked Sep 14, 2026	51-200	84 contacts →
	Indirect evidence “CyberNxt is a next-generation cybersecurity partner enabling enterprises to outpace dynamic digital threats.” Source: RevenueBase Database · checked Sep 14, 2026
24	Crossbow Cybersecurity	Partial evidence	Bengaluru, IndiaHQ checked Sep 14, 2026	51-200	83 contacts →
	Partial evidence “Crossbow Labs is a cyber security consulting company which assists various organizations to secure computing, application builds, network architecture designing and IT controls…” Source: RevenueBase Database · checked Sep 14, 2026
25	Senselearner Technologies Pvt. LTD	Indirect evidence	Dehradun, IndiaHQ checked Sep 14, 2026	51-200	77 contacts →
	Indirect evidence “Senselearner is a leading Global consulting and Implementation firm, proudly holding the ISO 27001:2013 certification.” Source: RevenueBase Database · checked Sep 14, 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: operational technology security 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 operational technology security companies.
Partial evidence: Its own public description names part of operational technology security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name operational technology security 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 602 operational technology security companies based in India

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Operational technology security companies based in India at a glance

As of Sep 14, 2026

18.6%Verified-email coverage

18.8Average contacts per company

11-50Median size (employees)

8.3%Largest-city concentration · Hyderabad

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

218

11-50

280

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 602 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 operational technology security 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 “operational technology security 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 operational technology security 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 operational technology security 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, 2,105 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 14, 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.

Operational technology security companies by metro

Operational technology security companies in Hyderabad50
Operational technology security companies in Pune46
Operational technology security companies in Mumbai41
Operational technology security companies in Bangalore40
Operational technology security companies in Chennai38
Operational technology security companies in New Delhi38
Operational technology security companies in Ahmedabad32
Operational technology security companies in Bengaluru30

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 operational technology security 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 operational technology security companies are there based in India?

RevenueBase identified 602 operational technology security 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?

SISA, headquartered in Bengaluru, tops this list with the largest team on record.

Which city has the most operational technology security companies?

Hyderabad leads with 50 headquartered companies, followed by Pune (46) and Mumbai (41).

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 2,105 verified decision-maker contacts tracked across these 602 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 14, 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.