By Design Secure
Security baked in from the start
Expertise
Our mission is to serve as the Specialist Systems Integrator and the trusted Architectural Advisors for IT environments which need to be defended against the highest level of threat. We provide the precise guidance and engineering effort needed to deliver the critical security components that distinguish a robust, high-assurance system from standard IT such as specialist cryptography and cross domain solutions.

Architecture Service
We provide Architecture Services to our customers, embodying the secure by design philosophy, designing IT systems with security baked in from the start, taking a holistic view encompassing all elements. Our specialist architecture team has expertise in monitoring, cryptography, multi domain security, data loss protection, platform security, networking, as well as many other areas, meeting the strict security requirements often needed to work in regulated environments. We are used to working with security accreditors and following NCSC guidance.

Specialist Engineering
We provide Specialist Engineering services to manage the build out of secure IT systems, with experience working in ‘air-gapped’ environments, with limited or no internet connectivity. We can engineer systems which include, government grade cryptography, cross domain technology, content disarm and reconstruction technology, disconnected cloud. We work closely with specialist technology partners who provide cutting edge components for the systems we build.

Technology Integration
We are able to provide integrated solutions and services, which combine commercially available software and hardware and specialist security solutions, to deliver an end-to-end solutions which are secure, user-friendly, scalable and supportable.
Who we are helping
Government
UK department
Defense
Manufacturers and agencies
Law Enforcement
Security services
Critical National Infrastructure
Energy, data, water
Why By Design Secure
We understand that delivering complex capability requires collaboration. We operate as a technology agnostic, trusted partner to our Customers.
We speak the language of security policy, assurance, and risk management. We work seamlessly across various technology providers (primes, niche SMEs, COTS & GOTS vendors) to ensure secure handshakes and interoperability between their delivered components.
Agnostic Integration: Our commitment is to be delivering a system that meets users’ needs whilst satisfying the successful accreditation and security of the system.
“We are the security-focused orchestrator, assuring that the collective efforts of the supply chain result in a user-friendly, accredited, and resilient capability.”

Usable

Resilient

Secure

Supportable
About
ByDesign was formed in 2025, by three founders with decades of experience in delivering secure IT systems into UK government and private sector organizations. We bring together deep understanding of real-world cyber threats, the capability to design and build defended systems and partnerships with cutting edge specialist technology providers. We are a growing SME expanding operations across the UK.
Process
Analyse
Understanding your business is our business.
Design
Specialist advice on how to design your system.
Build
Specialist engineering to build your system.
Run
Ongoing support that won’t let you down.
Join our team
We are currently looking to grow our team, and looking for enthusiastic individuals, especially those with architecture and engineering expertise of working in disconnected secure environments. More details of current opportunities can be found here (link to our indeed page). Please reach out to find out more information.