Own Your SIEM & SOC Platform
Built for MSSPs, Not Rented From Vendors
Your SIEM shouldn't be a subscription. We design, build, and hand you a custom SIEM and SOC platform powered by in-house AI agents, fully yours, with no per-GB fees and no vendor lock-in, engineered for MSSPs and regulated operators across Europe's and Saudi Arabia's toughest regulatory environments (NIS2, DORA, GDPR, NCA ECC, SAMA CSF). You own the roadmap, cut licensing costs for good, and keep complete control of your data.
What we deliver — at a glance
Custom SIEM, SOC & Compliance Platforms At a Glance
One engineering partner. Full ownership at every layer.
Own Your SIEM Platform
Multi-tenant platforms you fully own, with no per-GB licensing and no vendor dependency.
Run AI Security Agents In-House
Private LLM agents that keep every alert, investigation, and inference entirely within your own infrastructure.
Go to Market Under Your Brand
A rebrandable SOC platform that gets you to market fast, without building from scratch.
Stay Audit-Ready for EU Regulators
Stay audit-ready across NIS2 and DORA, without the manual overhead.
The licensing problem
Why MSSPs Move Away From Vendor-Locked SIEM Tools
Vendor SIEM licensing scales with ingestion volume, retention periods, and feature tiers. For MSSPs managing multiple tenants, that model creates real margin pressure. Your costs grow with every new client, but your service pricing usually stays fixed. Custom SIEM development breaks that dependency. You own the infrastructure, control the roadmap, and eliminate per-GB licensing.
Typical SIEM cost reduction after migration to a custom data lake
A structural margin problem for multi-tenant MSSPs
Standard timeline for zero-downtime SIEM migration
We build it. You own it.
Security Platform Engineering Services for MSSPs
Each service includes fully owned platform source code, documentation, and training.
Custom SIEM Development
01WhyCrew's SIEM engineering team builds a security data platform around your actual log volume, detection needs, and compliance scope: an open-format security data lake, custom detection logic, and zero-downtime migration off any legacy or vendor-locked platform. Every component is engineered to your spec and delivered as a fully owned, production-ready platform.
- Zero-downtime migration from Splunk, Sentinel, QRadar, or any legacy platform
- Open-format security data lake architecture
- SIEM ingestion pipeline tuning and optimization
- Custom detection logic built against your real environment
- A fully deployed platform delivered as a permanent, owned asset, with no ongoing licensing required
Custom SOAR Development
02We build custom SOAR playbooks around your actual escalation paths, ticketing system, chat tools, and enrichment sources, then hand you the full automation library to own and extend, instead of locking it inside a licensed SOAR platform's proprietary logic. Most teams see Tier-1 handling time drop by 70–80% once the first playbooks go live.
- Playbooks built around your actual escalation paths and tools
- Automated enrichment, triage, and containment workflows
- Full playbook ownership, no per-automation licensing
- Integrates with your existing SIEM, ticketing, and chat tools
AI-Powered SOC Automation
03We deploy private LLM agents (Llama 3, Mistral, or your preferred open-weight model) directly inside your environment. All inference stays within your perimeter. No alert data leaves your infrastructure. The typical outcome is a 70–80% reduction in Tier-1 alert handling time.
- On-premise LLM deployment with no external API dependency
- Automated alert triage and contextual enrichment
- Agentic SOAR workflows that adapt to your playbooks
- Perimeter-contained deployment architecture
MSSP Engineering Partner
04Your customers see your logo, your domain, your brand. We provide the engineering, and everything we build is yours to own, including the source code. Production-ready in 12 weeks.
- 100% white-label interface and tenant portal
- Full source code ownership, everything we build is yours
- Customer relationships stay fully under your brand
- 12-week deployment to production
NIS2 & DORA Compliance Automation
05We automate NIS2 Article 21 risk management, 24-hour incident reporting, and DORA ICT resilience testing. We collect evidence automatically, format reports for regulators, and keep audit trails ready for supervisory review, with full EU data residency and regional hosting control.
- Automated NIS2 incident reporting workflows
- DORA ICT risk management and resilience testing
- Evidence collection and audit trail automation
- EU data residency and regional hosting control
NCA ECC & SAMA CSF Compliance
06We build the SIEM and SOC platform that satisfies NCA ECC Control 2-12 and SAMA CSF Subdomain 3.14, whether one framework applies to you or both. Owned outright at handover, with audit-ready evidence in the format each regulator expects and zero ongoing licensing fees.
- Meets NCA ECC Control 2-12 and SAMA CSF Subdomain 3.14 out of the box
- One platform for organizations under either framework, or both
- Architecture documented for NCA MSOC licensing
- Full platform ownership at handover, no recurring fees
Real results from real deployments
What Teams Save When They Stop Renting.
No projections, no rounded-up numbers — just what actually happened after they switched.
How it works
Deploy Your Custom SIEM in 12 Weeks, Not 18 Months
One fixed price. Four stages. You approve every decision, and you walk away owning everything.
- 01
We Review Your Current Environment
Share your SIEM bills, alert backlog, and compliance gaps. We assess your existing setup, pinpoint where you're losing money and time, and deliver a fixed-price proposal. No hourly billing, no scope creep.
- 02
We Design Your Architecture
You get a full blueprint: data lake schema, AI agent workflows, and compliance rules. Every component is reviewed and approved by you before we write a single line of code.
- 03
We Build in 2-Week Sprints
Every two weeks, you see working software deployed to your staging environment and tested with real data. We iterate fast. No black-box development, no surprises.
- 04
We Hand You the Keys
You receive a fully owned platform, ready for your team to run, with full technical handover included. We stay available for upgrades and support, but the platform is yours to run and evolve. You set the roadmap. You decide what comes next.
Before you book a call
Frequently Asked Questions About Custom SIEM & SOC Platforms
Subscription vendors sell access to their platform under per-GB licensing. WhyCrew builds a custom platform and transfers full ownership to you. You control the roadmap, the data, and the economics. We're an engineering partner, not a SaaS provider.
It depends on your ingestion volume, retention needs, and integration complexity. Most clients see a 40–70% cost reduction within the first 12 months. You’ll get a fixed-price proposal after an initial architecture audit.
Yes. We deploy open-weight LLMs directly on your infrastructure or your own cloud tenant. No external AI services. No data leaves your perimeter, ever.
Standard SIEM migration and platform builds take 12 weeks from kickoff to production. White-label MSSP platforms deploy in 12 weeks as well. NIS2 compliance automation typically takes 4 to 6 weeks depending on integration depth.
No. Our strongest track record is in Europe, across NIS2, DORA, and GDPR, but the same architecture and ownership model applies to MSSPs and regulated operators everywhere.
Yes. Every engagement transfers full ownership — the platform, the source code, and all underlying infrastructure to you. You control the roadmap and the data, with no ongoing licensing and no vendor dependency. You also get API documentation, deployment runbooks, and hands-on engineering training, so your team can run and evolve it independently.
Yes. We implement NIS2 Article 21 as a structured engineering service, covering incident detection, 24-hour reporting, evidence collection, and supervisory notification. One French financial services client was fully audit-ready in three weeks.
Stop Renting. Start Owning.
Book a 20-minute call. We review your current environment, model your savings, and show you exactly what we'd build. No pitch deck, just engineering.
Engineering-led team · GDPR-aligned deployment options · NIS2 reporting built in · No sales team, you talk to engineers