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11 Best Cybersecurity Companies in Singapore (August 2026)

My picks of the 11 best cybersecurity companies in Singapore for 2026, from CSA-licensed pen testing to managed SOC and compliance.

A cybersecurity analyst monitoring threat dashboards on multiple screens in a security operations centre in Singapore

This guide is part of Terris Recommends, my researched, hands-on picks of the best local businesses and services in Singapore. Every recommendation is researched and ranked by me.

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Choosing a cybersecurity company in Singapore should start with a filter most buyers skip: are they licensed? Under the Cyber Security Agency's regime, the two highest-access services, penetration testing and managed security operations centre monitoring, are legally licensable, because a provider doing them gets deep access to your systems. So the first question is not who is cheapest, it is whether they hold a licence.

You can verify this yourself. The Cyber Security Agency sets the framework, and the Cybersecurity Services Regulation Office issues the licences and publishes the register of licensees. Once you have that trust filter, the practical decision is what you actually need: a penetration test to find weaknesses, managed detection and response to watch around the clock, or consulting for compliance. I will decode all of it, then give you my picks.

This is part of my Terris Recommends Business Services series. It pairs with my guide to IT support and managed services for SMEs.

What I look for in a cybersecurity company

Beyond the jargon, here is what actually matters when you choose a provider.

  • CSA and CSRO licensing. Penetration testing and managed SOC monitoring are licensable services in Singapore. Check the provider on the CSRO licensed-service-providers register, and look for a licence number, since a provider getting deep access to your systems should be licensed.
  • The right service. A penetration test finds and reports weaknesses. Managed detection and response, or MDR, watches your systems 24/7 and reacts to threats. Consulting and compliance covers PDPA, risk assessments and governance. Know which you need.
  • Accreditation. For pen testing, CREST accreditation and certifications like OSCP signal genuine capability. For MDR, ask about the team, tooling and response process.
  • SME versus enterprise fit. Some firms are built for banks and critical infrastructure, others for SMEs. Match the provider to your size and risk, and do not overbuy.
  • Start with the basics. For most SMEs, the sensible order is cyber hygiene and staff awareness, then a penetration test, then an outsourced data protection officer, before a full managed SOC.

One tip: get a clearly scoped statement of work for any pen test, including what is in and out of scope, so you know exactly what was and was not tested.

How the best cybersecurity companies in Singapore compare

FirmFocusBest for
Ensign InfoSecurityMDR, SOC, consultingLarger organisations
ST EngineeringOT and critical infrastructureIndustrial and CII
Group-IBThreat intelligence, MDRThreat-led defence
WizlynxPen testing, red teamLicensed VAPT
SwarmneticsPen testing, VAPTAffordable testing
Privacy NinjaPen test plus DPOSME PDPA compliance
PerennialPen testingLicensed VAPT for SMEs
NetpluzManaged SOCSME managed security
Responsible CyberThird-party riskSupply-chain risk
SingtelManaged securityTelco-scale MSSP
MicrologicSME managed securitySME budgets and grants

How much does penetration testing cost in Singapore?

Cost scales with scope and the service type. Here is what to expect in 2026.

ServiceTypical priceGood to know
Web-app penetration testAround S$1,500 to S$3,000Basic single-application scope
Mid-size penetration testAround S$5,000 to S$20,000Broader network and app scope
Enterprise red teamS$50,000 and upFull adversarial simulation
Managed SOC or MDRMonthly, priced by scope24/7 monitoring and response

The scope, the number of systems and how deep the test goes drive the price far more than the logo. For an SME, a well-scoped web-app or network penetration test plus basic hygiene is usually the sensible starting spend, before committing to an ongoing managed SOC.

1. Ensign InfoSecurity

Ensign is my pick for a large organisation wanting the full stack. It is Asia's largest pure-play cybersecurity firm, headquartered in Singapore, offering managed detection and response, a security operations centre, consulting and vulnerability management, backed by serious scale and threat expertise.

Best for
Larger organisations
Best known for
Asia's largest pure-play cybersecurity firm
Focus
MDR, SOC, consulting

2. ST Engineering Cybersecurity

ST Engineering is my pick for operational technology and critical infrastructure. It specialises in securing OT, industrial control and SCADA systems, alongside a SOC, VAPT and compliance work, with a track record building security operations centres and 25-plus years of experience.

Best for
Industrial and CII
Best known for
Operational-technology security
Focus
OT and critical infrastructure
Website
stengg.com

3. Group-IB

Group-IB is my pick for threat-intelligence-led defence. With its APAC headquarters in Singapore, it brings managed extended detection and response, deep threat intelligence and incident response, drawing on its own digital-crime research to anticipate attacks rather than just react.

Best for
Threat-led defence
Best known for
Threat-intelligence-driven detection and response
Focus
Threat intelligence and MDR
Website
group-ib.com

4. Wizlynx Group

Wizlynx is my pick for licensed, high-quality penetration testing. It holds a CSRO penetration-testing licence and has been CREST-accredited for years, offering pen testing, red teaming, incident response and compliance to enterprises, MNCs and banks, with a Swiss-quality reputation.

Best known for
Licensed, CREST-accredited penetration testing
Focus
Penetration testing and red team
Licensing
CSRO-licensed, CREST-accredited

5. Swarmnetics

Swarmnetics is my pick for affordable, capable penetration testing. It uses an elastic model of vetted security researchers, with a CREST and OSCP team, to deliver no-nonsense VAPT, red and purple teaming and secure code review, scaling from SMEs up to MNCs and government.

Best for
Affordable, capable testing
Best known for
An elastic vetted-researcher testing model
Focus
Penetration testing and VAPT
Website
swarmnetics.com

6. Privacy Ninja

Privacy Ninja is my pick for an SME that needs both testing and PDPA compliance. It combines CSRO-licensed penetration testing with outsourced data protection officer services, so a small business can cover both its technical security and its data-protection obligations in one place.

Best known for
Combining VAPT with PDPA compliance for SMEs
Focus
Pen testing plus outsourced DPO
Licensing
CSRO-licensed pen testing
Website
privacy.com.sg

7. Perennial Consultancy

Perennial is my pick for a licensed pen-test specialist that has been at it early. It holds a CSA penetration-testing licence issued back in 2022, so it was among the first licensed providers, with CREST and CISSP-qualified people delivering VAPT to SMEs and enterprises.

Best known for
An early-licensed penetration-testing specialist
Focus
Penetration testing
Licensing
CSA-licensed since 2022

8. Netpluz Asia

Netpluz is my pick for SME managed security. It runs a managed SOC and managed security services with threat monitoring, bundled with managed network services, so a growing SME can get 24/7 monitoring without building its own security team.

Best for
SME managed security
Best known for
Managed security bundled with network services
Focus
Managed SOC and security
Website
netpluz.asia

9. Responsible Cyber

Responsible Cyber is my pick for third-party and supply-chain risk. A Singapore-founded firm with academic roots, its RiskImmune platform uses AI to manage the risk that comes from your vendors and suppliers, an area many businesses overlook until a partner is breached.

Best for
Vendor risk management
Best known for
AI-driven third-party risk management
Focus
Third-party and supply-chain risk

10. Singtel

Singtel is my pick for a telco-scale managed security partner. Its managed security services, including MDR and SOC, come with the reliability and global SOC coverage of a major telco, and can be bundled with connectivity, which suits businesses that want a single, large, dependable provider.

Best for
Telco-scale managed security
Best known for
A one-stop MSSP with global SOC coverage
Focus
Managed security services
Website
singtel.com

11. Micrologic

Micrologic rounds out the list for SMEs on a budget. It delivers managed security for small businesses, covering multi-factor authentication, endpoint protection and monitoring at SME-friendly pricing, and it helps navigate PSG and IMDA grants to offset the cost.

Best for
SME budgets and grants
Best known for
Enterprise-grade security at SME pricing
Focus
SME managed security

How I put this list together

I looked at CSA and CSRO licensing for the licensable services, accreditations like CREST, the specific service focus, SME versus enterprise fit, and reputation. I deliberately spread the list across pen-testing specialists, managed SOC and MDR providers, compliance and third-party-risk firms, and SME-friendly options, because the right provider depends entirely on what you need.

Details are checked when I publish and revisited as things change. Always verify a provider on the CSRO licensed-service-providers register for licensable services, ask for a scoped statement of work, and start with the basics before buying a full SOC.

Do cybersecurity companies in Singapore need a licence?

For certain services, yes. Under the Cyber Security Agency regime, penetration testing and managed security operations centre monitoring are licensable services, because providers delivering them gain deep access to client systems. Firms offering these must hold a licence issued by the Cybersecurity Services Regulation Office. Other services, like general consulting or awareness training, are not licensed. So when engaging a provider for a pen test or managed SOC, check that they are licensed by looking them up on the CSRO licensed-service-providers register, and ask for their licence number.

What is the difference between MDR, MSSP and a SOC?

A SOC, or security operations centre, is a team and facility that monitors your systems for threats. An MSSP, or managed security service provider, is a company that runs security services for you, which may include operating a SOC on your behalf. MDR, or managed detection and response, is a specific service that combines monitoring with active threat hunting and response, going beyond alerting to actually contain threats. In short, a SOC is the capability, an MSSP is the provider, and MDR is a proactive service that detects and responds rather than just watching. For most SMEs, MDR from a good provider is the practical way to get 24/7 protection.

Which cybersecurity company is best for SMEs in Singapore?

For an SME, the best provider depends on your immediate need. If you need a penetration test, Swarmnetics and Perennial offer capable, licensed testing at accessible prices, and Privacy Ninja pairs testing with PDPA compliance. For ongoing monitoring, Netpluz and Micrologic offer SME-friendly managed security. Most small businesses should start with cyber hygiene and staff awareness, then a penetration test and an outsourced data protection officer, before committing to a full managed SOC. Match the spend to your actual risk rather than buying enterprise services you do not yet need.

How do I check if a cybersecurity provider is CSA-licensed?

Check the Cybersecurity Services Regulation Office register of licensed service providers, which lists firms licensed to provide penetration testing and managed security operations centre services. You can also ask the provider directly for their licence number, which follows a standard format, and cross-check it. This matters because these are the two services where a provider gains deep access to your systems, so licensing is a genuine trust signal. If a firm offering pen testing or managed SOC cannot show a valid CSRO licence, treat that as a red flag and look elsewhere.

Selling to businesses? The buyer researches you first

A company shortlisting cybersecurity companies in Singapore will look you up before anyone speaks to you, often several people independently.

They want to see relevant work, the certifications that apply, and some sign you have handled a company their size. B2B sites tend to be heavy on adjectives and light on proof, and that is the gap. I build websites for Singapore B2B firms that lead with the evidence, and I run the SEO so you show up for the specific searches procurement actually types.

If most of your pipeline is referral and you want inbound to pull its weight, tell me what you sell and I will give you a straight read.

The best cybersecurity company in Singapore for you is a licensed one matched to your actual need, so use the CSRO register as your trust filter, then choose by service: pen testing to find weaknesses, MDR to watch around the clock, or consulting for compliance. Wizlynx and Swarmnetics lead for testing, Ensign and Netpluz for managed security, and Micrologic for SMEs. Start with the basics before buying a full SOC.

Good security is not about buying the most, it is about buying the right things in the right order from a provider you can verify.

For everyday support, patching and helpdesk work, a security vendor is usually the wrong shape of supplier. My guide to the best IT support and managed services in Singapore covers that tier, and my company incorporation guide is the place to begin if the business is brand new.

If you run a technology or professional-services business and your website is not bringing in enquiries, that is what I do. I design websites for businesses across Singapore. Get in touch for a free consultation.

Spotted something out of date in this guide? Suggest an edit or a business to add. This guide is pre-filled for you.
Sources and references (11)
  1. ensigninfosecurity.com
  2. stengg.com › cybersecurity
  3. group-ib.com
  4. wizlynxgroup.com › sg
  5. swarmnetics.com
  6. privacy.com.sg
  7. perennialconsultancy.com
  8. netpluz.asia
  9. responsible-cyber.com
  10. singtel.com
  11. micrologic.com.sg
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I've built websites and run marketing for Singapore businesses full-time since 2018, across 290+ projects. That work has me talking to business owners every week, reading their reviews and seeing which providers actually deliver. Terris Recommends is where I turn that legwork into plain shortlists.

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