Siker

What Siker does

Siker Limited is a UK-based cybersecurity firm headquartered in Buckingham with a regional office in Edinburgh, operating as a subsidiary of the HS and TC Group of Companies. The company specialises in Industrial Control Systems (ICS) and Operational Technology (OT) cyber security, delivering NCSC Assured Training courses (ICS110, ICS202, ICS203) developed in partnership with the UK's National Cyber Security Centre and the Centre for the Protection of National Infrastructure (CPNI), alongside broader ACT and ISS course series and a bespoke eLearning platform for digital awareness and training delivery.

Its core technology stack is a curriculum-and-content business rather than a software product: NCSC-assured courseware aligned to CyBOK knowledge areas, instructor-led classroom and virtual classroom delivery, and a customisable eLearning platform that supports bespoke courses, awareness videos, and training bundles. The company complements training with a professional services portfolio covering frameworks consulting (IEC62443, IEC61511, NIST, NICE, NIS2, NCSC CAF), architecture design, assurance (incident response, penetration testing, OSINT exposure analysis, phishing exercises, MDR), and leadership services (vCISO, board briefings).

Siker generates revenue through three streams: per-delegate course fees (£799–£1,899+VAT for 1–2 day courses, paid via Stripe at booking), bespoke eLearning development, and professional services consulting. The go-to-market combines enterprise field sales for bespoke courses and consulting with self-serve online booking for standard courses, plus event-driven demand generation through industry events such as CyberScotland Week. Customers are drawn from Critical National Infrastructure verticals including Financial Services, Government, Energy, Transport, Healthcare, Water Services, and Food Manufacturing.

Name

Siker

Legal name

Siker Limited

Website

https://sikercyber.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

Siker is a UK-based cybersecurity firm delivering NCSC Assured Training and professional services for Industrial Control Systems and Critical National Infrastructure sectors including government, energy, finance, transport, healthcare, water, and food manufacturing.

Ownership category

akta.pro rank

Product category

Industrial Cybersecurity Training and Consulting

NAICS

Other Computer Related Services (541519), Computer Training (61142), Computer Training (611420), Business Schools and Computer and Management Training (6114)

SIC

Services-Services, Nec (8900)

akta.pro primary industry

Control System Cybersecurity for OT (ICS Security, Monitoring, Hardening) (IMAGABAL)

akta.pro secondary industries

OT/ICS & Critical Infrastructure Cybersecurity Services (BPAKAHAN), Cybersecurity Technical Skills (Security Engineering, SOC, Pen Testing) (EDABAFAF), OT Threat Detection & Monitoring (NDR/IDS for ICS) (HDADAJAF), Information Technology (IT) & Cybersecurity Certifications (EDAAANAA), Critical Infrastructure Protection (CIP) & NERC-CIP Compliance (HDADAJAC)

Keywords

• ICS cybersecurity training
• Industrial control systems security
• NCSC assured training
• Cyber risk consulting
• Incident response services

Headquarters

HQ city

Buckingham

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations

Revenue model

1. Training Courses: One-time course fees for classroom, virtual classroom, and online training delivery. Courses are priced per participant with formats including 1-day (£799) and 2-day (£1599-£1899) options. Payment collected online via Stripe at point of booking.
2. Bespoke eLearning: Custom eLearning course development and delivery for organisations requiring tailored cyber security training content.
3. Consulting Services: Professional consulting services including vCISO, Board Briefings, Incident Response, Penetration Testing, and framework consulting (IEC62443, IEC61511, NIST, NICE, NIS2, NCSC CAF).

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Siker delivers NCSC Assured Training courses for Industrial Control Systems (ICS) cyber security alongside bespoke eLearning content and professional consulting services. Their portfolio covers ICS security training (ICS110, ICS202, ICS203), a customisable eLearning platform, and consulting across frameworks, architecture, assurance, and leadership (vCISO, penetration testing, incident response, OSINT exposure analysis). All offerings target Critical National Infrastructure organisations including financial services, governments, energy, transport, healthcare, water, and food manufacturing.

Product overview

Siker offers a portfolio of cybersecurity training and professional services. Their core training products are structured under the Academy, offering ICS (Industrial Control Systems), ACT, and ISS course series, alongside a bespoke Siker eLearning platform. They provide instructor-led classroom courses, virtual classroom (hybrid) training, and online eLearning formats. In addition to education, Siker delivers professional consulting services across Frameworks (IEC62443, IEC61511, NIST, NICE, NIS2, NCSC CAF), Architecture (design, procurement, implementation, mentoring, service desk), Assurance (incident response, penetration testing, OSINT, phishing exercises, MDR, GRC), and Leadership (vCISO, board briefings). The ICS course series (ICS110, ICS202, ICS203) are NCSC Assured Training products, representing their flagship educational offerings.

Differentiator

Problem solved

Functional benefit

Brands

• HS and TC Group: Parent corporate group under which Siker Limited operates.

Products and services

• ICS110 – ICS Managers Security Fundamentals A 1-day awareness-level NCSC Assured Training course that prepares OT leaders to understand the basics of OT cyber security risk and take proactive measures to reduce risk in OT environments. Priced at £799 + VAT per delegate, providing 7 CPEs.
• ICS202 – ICS Security Incident Response Fundamentals A 2-day foundation-level course providing practitioners with understanding of current cyber incident response challenges facing ICS environments, including how the response approach may differ in OT versus IT contexts. Priced at £1599 + VAT per delegate, providing 12 CPEs.
• ICS203 – ICS Practitioners Security A 2-day foundation-level NCSC Assured Training course providing practitioners with an understanding of the cyber security challenges facing their ICS environments, teaching how to protect them and support organisational cyber security and risk mitigation strategies. Priced at £1899 + VAT per delegate, providing 12 CPEs.
• ICS Courses Suite A suite of NCSC Assured Training courses covering Industrial Control Systems (ICS) security, ranging from manager awareness to practitioner and advanced practitioner levels. Includes ICS110, ICS202, and ICS203.
• ACT Courses Suite A suite of training courses covering Act-related cybersecurity topics, part of Siker's Academy offerings alongside ICS and ISS courses.
• ISS Courses Suite A suite of training courses covering Information System Security topics, part of Siker's Academy offerings alongside ICS and ACT courses.
• Siker eLearning Platform A bespoke digital learning platform offering eLearning courses, awareness videos, and bundled training packages tailored to organisational needs. Includes NCSC Assured Training content and custom-developed cyber awareness materials.
• Frameworks Consulting Services Risk assessment and consulting services covering IEC62443, IEC61511, NIST, NICE, NIS2, and NCSC Cyber Assessment Framework (CAF) for IACS systems. Includes structured method for performing and recording detailed Risk Assessments of complete suites of IACS systems (Systems under Control).
• Architecture Services Structured consulting approach covering design, procurement, implementation, and mentoring for service desks and security systems. Provides end-to-end delivery from architecture design through ongoing service desk support.
• Assurance Services Professional services encompassing incident response, penetration testing, OSINT exposure analysis, phishing exercises, managed detection and response (MDR), and GRC and compliance adherence for IACS environments.
• Leadership Services Cyber leadership strengthening services including vCISO (virtual Chief Information Security Officer) engagements and strategic board briefings to help leaders understand and manage cyber security risks.

Quantifiable outcome

• NCSC Assured Training certification for ICS security courses
• +1 more outcomes

Named customers1 record

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Six partnerships are on record, tiered core and minor.

• National Cyber Security Centre (NCSC)coreStrategic or Co-development PartnerSiker has worked in partnership with the UK's National Cyber Security Centre to develop NCSC Assured Training courses for Industrial Control Systems security. The collaboration ensures courses meet government standards and address real-world CNI cyber security challenges.
• Centre for the Protection of National Infrastructure (CPNI)coreStrategic or Co-development PartnerSiker collaborated with CPNI alongside leading Critical National Infrastructure companies to produce ICS incident response training courses, ensuring alignment with national infrastructure protection requirements.
• ISA Global Cybersecurity AllianceminorStrategic or Co-development PartnerSiker is a member of the ISA Global Cybersecurity Alliance, participating in industry collaboration efforts to advance cyber security standards and practices globally.
• Cyber ExchangeminorOthersSiker is a member of Cyber Exchange, the UK's cyber security knowledge sharing and collaboration community.
• Scotland ISminorOthersSiker is a member of Scotland IS, the technology trade association for Scotland supporting digital economy growth.
• AchillesminorChannel Partner/ Reseller/ DistributorAchilles certification demonstrates Siker meets supply chain risk management standards required by major industrial sector clients.

Scale indicators2 records

Recent moves1 record

Expansion highlights6 records

Direct peers

• Claroty: Claroty provides OT security solutions and training programs for industrial and critical infrastructure environments. It overlaps with Siker in delivering ICS cybersecurity education alongside its broader OT security platform offering.
• Dragos: Dragos is a specialist OT cybersecurity platform vendor that also operates a substantial ICS cybersecurity training and certification program (Dragos Academy). It is a direct competitor to Siker in OT/ICS training for industrial and CNI buyers.
• Bridewell: Bridewell is a UK cybersecurity services firm with strong CNI and OT/ICS practice areas, offering consulting, pen testing, and managed detection alongside security training. It is a close peer to Siker in target customers and service mix.
• Nozomi Networks: Nozomi Networks is an OT and IoT security vendor that delivers ICS/SCADA cybersecurity training through its Nozomi Networks Labs and Academy programs. Like Siker, it combines product-led content with practitioner-focused training for CNI operators.
• SANS Institute: SANS Institute is a global leader in cybersecurity training, including dedicated ICS/OT security courses (e.g., ICS/SCADA security curriculum) aligned to industry frameworks. It competes directly with Siker for enterprise CNI training budgets and instructor-led course attendees.
• Pen Test Partners: Pen Test Partners is a UK-based cybersecurity consultancy providing penetration testing, red teaming, and OT/ICS security services to enterprise and CNI clients. It overlaps with Siker on assurance and incident response engagements.

Broad incumbents

• Mandiant (Google Cloud): Mandiant is a global incident response, threat intelligence, and cybersecurity consulting firm. It overlaps with Siker's assurance services (incident response, penetration testing, OSINT) at the high end of the CNI and enterprise market.
• KnowBe4: KnowBe4 is a large security awareness and phishing simulation platform that addresses adjacent needs to Siker's awareness, eLearning, and phishing exercise offerings for CNI and enterprise buyers.
• NCC Group: NCC Group is a large UK-headquartered cybersecurity consulting and assurance firm with OT/ICS capabilities and training offerings. It is a broader incumbent that competes with Siker for CNI consulting and training engagements from a wider services portfolio.

Emerging players

• CRITICALSCADA (CyberX / industrial training specialists): CRITICALSCADA is a niche OT/ICS cybersecurity training and services provider focused on industrial control systems and SCADA environments. It is a smaller, more specialized competitor in the same ICS training niche as Siker.

Market position

Strengths1 record

Weaknesses1 record

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/sikercyber
• YouTubeyoutube.com/@SikerCyber2013
• Facebookfacebook.com/sikercyber
• LinkedInlinkedin.com/company/siker-cyber

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Siker