Company lists · Data refreshed September 2026

Top 16 Web security companies based in Hyderabad, India

RevenueBase identified 95 web security companies headquartered in Hyderabad, India as of September 2026 and tracks 693 professional contacts across them, including 108 with verified work emails. Hyderabad is the largest hub.

This list covers web security companies headquartered in Hyderabad, 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
95Companies
693Contacts tracked
108Verified emails
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The 16 largest web security companies based in Hyderabad, India

Ranked by team size
Top 16 of 95 web security companies based in Hyderabad, India, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to web 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceHyderabad, IndiaHQ checked Sep 14, 202651-20066 contacts →

Partial evidence

“Castellum Labs is Next Gen Cyber Security Technology Venture!”

Source: RevenueBase Database · checked Sep 14, 2026
2Partial evidenceHyderabad, IndiaHQ checked Sep 14, 202611-5045 contacts →

Partial evidence

“VSigma IT Labs primary focus is on providing specialized Cyber Security Services and AI Analytics Services, Security Analytics, IoT, Cloud, Data Science to our esteemed clients…”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceHyderabad, IndiaHQ checked Sep 14, 202651-20037 contacts →

Indirect evidence

“ESF Labs, established in 2014, is a leading provider of digital forensics and cybersecurity services, specializing in helping organizations navigate the complex and rapidly…”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceHyderabad, IndiaHQ checked Sep 14, 202611-5027 contacts →

Indirect evidence

“RHYM Technologies LLP provides end-to-end Cybersecurity services with our AI driven Threat Intelligence platform, RHYMIntellect™.”

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceHyderabad, IndiaHQ checked Sep 14, 202651-20022 contacts →

Partial evidence

“WeSecureApp, now part of Strobes Security, is a CERT-In empanelled cybersecurity company based in Hyderabad, India.”

Source: RevenueBase Database · checked Sep 14, 2026
6Partial evidenceHyderabad, IndiaHQ checked Sep 14, 2026201-50018 contacts →

Partial evidence

“At SHI | Cymune (An SHI Company), we bridge the visible and the invisible Cyber Security gaps for the businesses that aspire to be Digital with an uncompromising approach to…”

Source: RevenueBase Database · checked Sep 14, 2026
7Partial evidenceHyderabad, IndiaHQ checked Sep 14, 202611-5017 contacts →

Partial evidence

“VATINS Systems is a Next-Gen Cyber Investigations & Cyber Security expert.”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceHyderabad, IndiaHQ checked Sep 14, 202611-5016 contacts →

Indirect evidence

“Cyber Command: Your Trusted MSSP for comprehensive Cybersecurity solutions In the digital age, cybersecurity is paramount.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceHyderabad, IndiaHQ checked Sep 14, 202611-5015 contacts →

Indirect evidence

“At Krash Consulting, we have led in safeguarding client's data for over a decade.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceHyderabad, IndiaHQ checked Sep 14, 20261-1012 contacts →

Indirect evidence

“Fgrade global services is a provider of Information Technology services founded in 2013.”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceHyderabad, IndiaHQ checked Sep 14, 202611-5011 contacts →

Indirect evidence

“Welcome to Crystalline, where cybersecurity meets excellence!”

Source: RevenueBase Database · checked Sep 14, 2026
12Partial evidenceHyderabad, IndiaHQ checked Sep 14, 202651-2006 contacts →

Partial evidence

“Cyber Hat Solutions Private Limited, is a leading company in the India that specializes in information security services.”

Source: RevenueBase Database · checked Sep 14, 2026
13Partial evidenceHyderabad, IndiaHQ checked Sep 14, 202611-505 contacts →

Partial evidence

“Hackrew is a cyber security firm relentlessly pursuing to make an organisation's data and online infrastructure secure.”

Source: RevenueBase Database · checked Sep 14, 2026
14Partial evidenceHyderabad, IndiaHQ checked Sep 14, 202611-504 contacts →

Partial evidence

“SYSOWL is an IT Services & Cybersecurity Solutions company offering the best of breed Managed Security Services!”

Source: RevenueBase Database · checked Sep 14, 2026
15Partial evidenceHyderabad, IndiaHQ checked Sep 14, 202611-503 contacts →

Partial evidence

“Syberbrigade is a cyber security firm, with a focus on Penetration Testing, Architecture Review, Risk & Compliance, and Managed Security Services.”

Source: RevenueBase Database · checked Sep 14, 2026
16Partial evidenceHyderabad, IndiaHQ checked Sep 14, 20261-103 contacts →

Partial evidence

Security Services are complex and hard to define and manage for SME’s.In the plethora of tools, its hard for a customer to define what is needed for their specific infrastructure.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 16 of 95 web security companies based in Hyderabad, India

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Web security companies based in Hyderabad, India at a glance

As of Sep 14, 2026
15.6%Verified-email coverage
7.3Average contacts per company
11-50Median size (employees)
100.0%Largest-city concentration · Hyderabad
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
34
11-50
41
51-200
14
201-500
4
501-1,000
1
10001+
1

Email recency for this list is measured across the whole India list rather than for Hyderabad, so it is reported there. Company counts and contact totals on this page are exact for Hyderabad, over 95 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 web 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 Hyderabad, India whose own description of what they do matches “web 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 web 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 web security companies, and records with no verified work email. Companies headquartered outside Hyderabad 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, 108 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.

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 web 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 web security companies are there based in Hyderabad, India?

RevenueBase identified 95 web security companies headquartered in Hyderabad, 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?

Castellum Labs, headquartered in Hyderabad, tops this list with the largest team on record.

Which city has the most web security companies?

Hyderabad leads with 95 headquartered companies, followed by Pune (93) and New Delhi (70).

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 108 verified decision-maker contacts tracked across these 95 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.