Company lists · Data refreshed October 2026

Top 25 Application security service providers based in Hyderabad, India

Name: Application security service providers based in Hyderabad, India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 141 companies tracked

RevenueBase identified 141 application security service providers headquartered in Hyderabad, India as of October 2026 and tracks 1,308 professional contacts across them, including 173 with verified work emails. Across India, Bangalore is the largest hub for this category (213 companies); Hyderabad has 141.

This list covers application security service providers 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 October 1, 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 Oct 1, 2026 86% judged on-target in blind review

141Companies

1,308Contacts tracked

173Verified emails

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The 25 largest application security service providers based in Hyderabad, India

Ranked by team size

Top 25 of 141 application security service providers based in Hyderabad, India, ranked by team size, largest first. Data refreshed Oct 1, 2026. RevenueBase Smart Search rates how each company's information relates to application security service providers: 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	Castellum Labs	Partial evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	51-200	66 contacts →
	Partial evidence “Castellum Labs is Next Gen Cyber Security Technology Venture!” Source: RevenueBase Database · checked Oct 1, 2026
2	Vsigma IT Labs PVT LTD	Partial evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	45 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 Oct 1, 2026
3	Kinich IT Labs	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	39 contacts →
	Indirect evidence “Kinich IT Labs® (Kinich®)is a new age innovative IT services company, providing end-to-end design, development, testing and support activities.” Source: RevenueBase Database · checked Oct 1, 2026
4	ESF Labs Limited	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	51-200	37 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 Oct 1, 2026
5	Beyondscale	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	34 contacts →
	Indirect evidence “AI is being deployed faster than it's being secured.” Source: RevenueBase Database · checked Oct 1, 2026
6	NGSS	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	51-200	28 contacts →
	Indirect evidence “Next Generation Simple Solutions Private Limited We “NGSS (Next Generation Simple Solutions Private Limited) ” are a leading Gold partner and distributor of a wide range of…” Source: RevenueBase Database · checked Oct 1, 2026
7	Rhym Technologies LLP	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	27 contacts →
	Indirect evidence “RHYM Technologies LLP provides end-to-end Cybersecurity services with our AI driven Threat Intelligence platform, RHYMIntellect™.” Source: RevenueBase Database · checked Oct 1, 2026
8	Wesecureapp NOW Strobes Security	Partial evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	51-200	22 contacts →
	Partial evidence “WeSecureApp, now part of Strobes Security, is a CERT-In empanelled cybersecurity company based in Hyderabad, India.” Source: RevenueBase Database · checked Oct 1, 2026
9	Hala Infosec	Partial evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	21 contacts →
	Partial evidence “Hala Infosec is a fast-growing cyber security firm committed to delivering quality-driven, outcome-focused security services.” Source: RevenueBase Database · checked Oct 1, 2026
10	SHI Cymune	Partial evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	201-500	18 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 Oct 1, 2026
11	Vatins Systems	Partial evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	17 contacts →
	Partial evidence “VATINS Systems is a Next-Gen Cyber Investigations & Cyber Security expert.” Source: RevenueBase Database · checked Oct 1, 2026
12	Securweave	Partial evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	1-10	16 contacts →
	Partial evidence “SecurWeave is a cutting-edge cybersecurity company headquartered in Hyderabad, India, with a mission to address the security and safety needs of the rapidly evolving digital world.” Source: RevenueBase Database · checked Oct 1, 2026
13	Cybercommand Private Limited	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	16 contacts →
	Indirect evidence “Cyber Command: Your Trusted MSSP for comprehensive Cybersecurity solutions In the digital age, cybersecurity is paramount.” Source: RevenueBase Database · checked Oct 1, 2026
14	Krash Consulting	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	15 contacts →
	Indirect evidence “At Krash Consulting, we have led in safeguarding client's data for over a decade.” Source: RevenueBase Database · checked Oct 1, 2026
15	Digitowork	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	51-200	15 contacts →
	Indirect evidence “DIGITOWORK ISO/IEC 17025 Accredited Cybersecurity Testing Laboratory NABL Certificate No.” Source: RevenueBase Database · checked Oct 1, 2026
16	Fncyber	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	15 contacts →
	Indirect evidence “fnCyber got incepted with the sole purpose to uncover vulnerabilities in any business system at the functional level combining the expertise in business continuity, cybersecurity…” Source: RevenueBase Database · checked Oct 1, 2026
17	Totem International LTD	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	201-500	14 contacts →
	Indirect evidence “Totem International is a global company established in 2009, with a vast pool of professionals from diverse industry background having strength in consulting integrated physical…” Source: RevenueBase Database · checked Oct 1, 2026
18	Bitronics Private Limited	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	13 contacts →
	Indirect evidence “Pioneering in digital high-tech solutions, Bitronics is a software service entity to help you embrace the progression of technologies with ease.” Source: RevenueBase Database · checked Oct 1, 2026
19	Fgrade Global Services	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	1-10	12 contacts →
	Indirect evidence “Fgrade global services is a provider of Information Technology services founded in 2013.” Source: RevenueBase Database · checked Oct 1, 2026
20	Crystalline Software Technologies	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	11 contacts →
	Indirect evidence “Welcome to Crystalline, where cybersecurity meets excellence!” Source: RevenueBase Database · checked Oct 1, 2026
21	Cynor Sense	Partial evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	9 contacts →
	Partial evidence “CynorSense is a unique player in security assessments and risk analysis.” Source: RevenueBase Database · checked Oct 1, 2026
22	Pragma Technology Consulting Services Pvt. LTD	Indirect evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	8 contacts →
	Indirect evidence “Pragma Technology Consulting Services Pvt.” Source: RevenueBase Database · checked Oct 1, 2026
23	Cyber HAT Solutions	Partial evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	51-200	6 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 Oct 1, 2026
24	Hackrew	Partial evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	5 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 Oct 1, 2026
25	Trinay Cyber Technologies	Partial evidence	Hyderabad, IndiaHQ checked Oct 1, 2026	11-50	4 contacts →
	Partial evidence “Trinay has been helping organizations to gain 360 degree visibility over the security gaps and we are happy to extend our services to your esteemed organization.” Source: RevenueBase Database · checked Oct 1, 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: application security service providers. 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 application security service providers.
Partial evidence: Its own public description names part of application security service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name application security service providers. 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 141 application security service providers based in Hyderabad, India

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Application security service providers based in Hyderabad, India at a glance

As of Oct 1, 2026

13.2%Verified-email coverage

9.3Average contacts per company

11-50Median size (employees)

Oct 1, 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 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 141 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 application security service providers, 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 “application security service providers”. 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 application security service providers), 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 application security service providers, 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, 173 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 October 1, 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.

Application security service providers by metro in India

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 application security service providers, 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 application security service providers are there based in Hyderabad, India?

RevenueBase identified 141 application security service providers headquartered in Hyderabad, India as of October 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 in India has the most application security service providers?

Bangalore leads India with 213 headquartered companies, followed by Pune (154) and Hyderabad (141).

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 173 verified decision-maker contacts tracked across these 141 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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.