We defend and build the systems your business runs on.
Byzantine Solutions is a cybersecurity and software development consultancy.
Security and software, under one roof
From offensive security to production engineering, our team covers the full lifecycle of building and defending software.
Penetration Testing
Real-world attack simulations against your web apps, APIs, networks, and cloud infrastructure — with findings your engineers can action.
Learn more →Security Audits & Compliance
Independent security assessments mapped to SOC 2, ISO 27001, and PCI-DSS so you can walk into an audit with confidence.
Learn more →Incident Response
When something goes wrong, we help you contain it, understand it, and come out the other side with a stronger posture.
Learn more →Custom Software Development
Production-grade web applications and internal tools, engineered with security built in from the first commit.
Learn more →Cloud & DevSecOps
Secure cloud architecture and CI/CD pipelines that catch problems before they ship, not after.
Learn more →Managed Security Monitoring
Ongoing monitoring and threat detection for teams who need senior security coverage without a full in-house team.
Learn more →Engineers who think like attackers, and build like it matters
We don't hand off a checklist and disappear. Our consultants work alongside your team, translating findings into shipped fixes and production-ready software.
- Senior consultants only — no junior hand-offs mid-engagement
- Clear, actionable reports your engineers can implement directly
- Fixed-scope engagements with transparent, upfront pricing
- Security and engineering expertise in the same team
A straightforward process, start to finish
Discover
We learn your systems, priorities, and what a successful engagement looks like for your team.
Assess
Hands-on testing or architecture review, documented as we go — no surprises at the end.
Build & Defend
We remediate, harden, or ship — working directly with your engineers when useful.
Support
A final report, a retest where needed, and an open line for questions after we wrap.
Remote-first, serving clients worldwide
Distributed teams, distributed clients — we work across time zones and major markets alike.
Chicago
New York
Los Angeles
London
Frankfurt
& Beyond
Ready to secure and scale your business?
Tell us what you're working with and we'll recommend the right starting point — no pressure, no obligation.
Book a Free Consultation