SiXworks
SiXworks Limited is a UK B2B provider of secure digital solutions for Defence and National Security, specialising in Zero Trust architectures, cross-domain security, GPU-powered AI/ML compute, and cyber vulnerability mitigation. Now an IBM company following its January 2026 acquisition.
- Company typePrivate
- Founded2017
- HeadquartersFarnborough, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingServices
What SiXworks does
SiXworks Limited is a UK-based B2B provider of digital solutions for high-security environments, serving the UK Defence and National Security sectors from offices in Farnborough (headquarters, Cody Technology Park) and Cheltenham. Founded as a private limited company in England and Wales, the firm employs 11-50 people and operates exclusively in the UK market, addressing complex technology challenges in classified and security-sensitive settings through a constructively-disruptive, fail-safe-fast development approach. Its mission is to accelerate innovation and adoption of secure digital technology to improve the operational agility of Defence and National Security clients.
The company's product portfolio spans six core capabilities: Secure By Design, Cross-Domain Security Systems, Multi-source Data Platforms, Multi-tenanted High-Performance Compute (GPU-powered AI/ML), Cyber Vulnerability Mitigation, and Cloud, Advanced Networks & Infrastructure. Underpinning these is a Zero Trust, Data-Centric architectural philosophy intended to provide maximum protection against cyber threats. Engagements are bespoke and quoted per project, typical of enterprise defence and national security procurement, and the company markets primarily through LinkedIn and direct enterprise sales. Pricing is not publicly disclosed.
SiXworks received a growth investment from Chiltern Capital in November 2022, and in January 2026 was acquired by IBM as part of a series of acquisitions to bolster IBM's UK Public Sector expertise in AI, cloud, and digital transformation. Following the acquisition, SiXworks continues to operate under its own brand as an IBM company.
SiXworks firmographics
Firmographics- Name
- SiXworks
- Legal name
- SiXworks Limited
- Website
- https://sixworks.net
- Company type
- Private
- Founded year
- 2017
- Operating status
- Acquired
- Headcount range
- 11–50 employees
- Short description
- SiXworks Limited is a UK B2B provider of secure digital solutions for Defence and National Security, specialising in Zero Trust architectures, cross-domain security, GPU-powered AI/ML compute, and cyber vulnerability mitigation. Now an IBM company following its January 2026 acquisition.
- Ownership category
- akta.pro rank
SiXworks industry classification
Industry- Product category
- Defense and National Security Technology Services
- NAICS
- Computer Systems Design Services (541512), National Security (928110)
- SIC
- Services-Computer Integrated Systems Design (7373)
- akta.pro primary industry
- Managed Security Services (MSSP) & 24/7 SOC Operations (BPAKAHAA)
- akta.pro secondary industries
- Data Security & Privacy Managed Services (DLP/Encryption) (BPAEADAL), Endpoint Security Managed Services (EDR/XDR) (BPAEADAH)
Keywords
Where SiXworks is headquartered
LocationHeadquarters
- HQ city
- Farnborough
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
SiXworks business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Infrastructure, Operations, Marketing or Sales
Distribution channels1 record
Marketing channels1 record
SiXworks product offering
Product offeringCore offering
SiXworks provides digital solutions for high-security environments, specialising in experimentation and fail-safe-fast development for UK Defence and National Security clients. The company delivers an integrated portfolio spanning secure software and infrastructure engineering, cross-domain data exchange, multi-source data platforms, GPU-powered high-performance compute, cyber vulnerability mitigation, and cloud and advanced network infrastructure built around Zero Trust and Data-Centric architectures.
Product overview
SiXworks offers a unified portfolio of digital solutions for high-security environments, specialising in secure digital innovation for Defence and National Security. The company provides an integrated platform of six core capabilities: Secure By Design, Cross-Domain Security Systems, Multi-source Data Platforms, Multi-tenanted High-Performance Compute (GPU-powered AI/ML), Cyber Vulnerability Mitigation, and Cloud/Advanced Networks & Infrastructure. These offerings are delivered through a constructively-disruptive approach advocating high assurance, Zero Trust, and Data-Centric architectures.
Differentiator
Problem solved
Functional benefit
Products and services
- Secure By Design Security prioritised as a core business requirement across both software engineering and physical infrastructure development for Defence and National Security clients operating in high-security environments.
- Cross-Domain Security Systems Facilitates secure data exchange across networks between different security domains, enabling controlled information flow for organisations operating across classified and unclassified environments.
- Multi-source Data Platforms Enables ingestion and management of data from various sources, streamlining integration and facilitating effective decision-making for Defence and National Security organisations.
- Multi-tenanted High-Performance Compute Exploits GPU technology to drive AI/ML applications, providing resilient and scalable compute capacity for intricate computational tasks in high-security environments.
- Cyber Vulnerability Mitigation Proactive strategies to identify, assess, and neutralise threats, ensuring robust security for systems and data in Defence and National Security environments.
- Cloud, Advanced Networks & Infrastructure Seamless, scalable, and secure cloud solutions optimising performance and connectivity for modern IT environments within Defence and National Security settings.
Companies that use SiXworks
Customer profileSegments1 record
Ideal customer profiles1 record
SiXworks technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability1 record
Feature6 records
SiXworks partnerships and signals
Strategic signalRecent moves4 records
Expansion highlights4 records
SiXworks competitors and assessment
Company assessmentBroad incumbents
- Thales: Global defence and security company with strong UK presence providing secure communications, cybersecurity, and digital systems to defence and national security clients, broadly overlapping with SiXworks' secure digital solutions portfolio.
- CGI Federal: IT and business consulting services firm with a substantial defence and intelligence practice delivering secure systems integration, cyber, and digital transformation to government clients, broadly comparable to SiXworks' integrated secure digital services.
- Leidos: US-headquartered defence, intelligence, and civil IT services firm delivering cyber, data platforms, and secure infrastructure to government customers, comparable in mission and solution mix to SiXworks' defence cyber offerings.
- Booz Allen Hamilton: Major US management and technology consulting firm with a large defence and intelligence cyber practice, directly comparable to SiXworks' Zero Trust, cross-domain, and secure digital transformation work for national security clients.
- DXC Technology: Global IT services company with a defence and public sector practice delivering secure cloud, infrastructure, and cyber solutions to government customers, comparable in scale and offerings to SiXworks' cloud/advanced networks and cyber vulnerability mitigation capabilities.
- BAE Systems Digital Intelligence: Major UK defence prime with a dedicated Digital Intelligence division delivering cyber, data, and secure communications solutions to government and defence customers, a scaled incumbent in the same high-security digital space as SiXworks.
Direct peers
- QinetiQ: UK-headquartered defence technology and security company that delivers cyber, intelligence, and secure digital solutions to defence and national security customers, directly comparable to SiXworks' UK Defence/National Security focus.
- ManTech International: US defence IT and cyber services specialist serving intelligence, defence, and federal civilian customers with mission-focused secure systems and cyber operations, closely comparable to SiXworks' defence cyber and high-assurance systems work.
- BAE Systems Applied Intelligence: Division of BAE Systems focused on cyber security, data intelligence, and financial crime solutions to government and defence clients, a close peer in cyber and secure data exchange capabilities for high-security environments.
- Palantir Technologies: Data analytics and software company serving defence and intelligence customers with multi-source data platforms and AI/ML-driven decision support, comparable to SiXworks' Multi-source Data Platforms and GPU-powered AI/ML compute offerings.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
SiXworks social profiles
Digital presenceSiXworks financial estimates
Financial estimateRevenue estimate
Valuation estimate
SiXworks leadership team
Management profileNumber of profiles
Profiles8 records
SiXworks funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SiXworks M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SiXworks
What does SiXworks do?
SiXworks provides digital solutions for high-security environments, specialising in experimentation and fail-safe-fast development for UK Defence and National Security clients. The company delivers an integrated portfolio spanning secure software and infrastructure engineering, cross-domain data exchange, multi-source data platforms, GPU-powered high-performance compute, cyber vulnerability mitigation, and cloud and advanced network infrastructure built around Zero Trust and Data-Centric architectures.
Is SiXworks a public or private company?
SiXworks is a private company. It is classified as corporate owned and is currently acquired.
When was SiXworks founded?
SiXworks was founded in 2017. It employs 11 to 50 people.
Where is SiXworks based?
SiXworks is headquartered in Farnborough, United Kingdom, in the Europe region.
Who are SiXworks's main competitors?
Broad incumbents on record are Thales, CGI Federal, Leidos, Booz Allen Hamilton, DXC Technology and BAE Systems Digital Intelligence. Direct peers are QinetiQ, ManTech International, BAE Systems Applied Intelligence and Palantir Technologies.
Does SiXworks have an API?
No public API is recorded for SiXworks.
What industry is SiXworks in?
SiXworks's product category is Defense and National Security Technology Services. Its primary akta.pro industry code is BPAKAHAA, Managed Security Services (MSSP) & 24/7 SOC Operations, with a secondary code of BPAEADAL, Data Security & Privacy Managed Services (DLP/Encryption). Its NAICS code is 541512 and its SIC code is 7373.