4Rooks provides ROSA, a managed firmware platform that generates and maintains the undifferentiated embedded software layers—board support, connectivity, OTA updates, and security—so engineering teams can focus on product-specific application logic. ROSA integrates directly into a company's repositories, keeps all generated code current, and supports both new products and migration of existing codebases. The platform claims to reduce platform maintenance costs by up to 75% compared to in-house efforts.
Funding
Funding not disclosed
Founders
Product
Problem
Embedded product teams spend a large share of their engineering capacity on repetitive, non-differentiating work such as board bring-up, connectivity stacks, update mechanisms, and dependency patches. This maintenance burden grows with every hardware variant, slowing down new product ramp-up and limiting the total portfolio a team can sustain.
Solution
4Rooks offers ROSA, a managed firmware platform that carries the undifferentiated share of embedded development. ROSA generates the firmware system from a product model, producing readable code directly into the customer's repositories, and keeps that code current with ongoing maintenance of board support, Zephyr integration, connectivity protocols, OTA updates, and security patches. Engineering teams only write application logic, domain knowledge, and hardware target configuration, while ROSA handles the rest. The platform supports both greenfield projects and migration of existing codebases, wrapping legacy code rather than replacing it. With ROSA, a team of ten engineers can increase its sustainable product portfolio from 5–10 to 15–25 products, and the second product always costs less to build than the first.
Target Audience
Primary customers are embedded engineering teams at hardware companies that build multiple product variants and need to scale their portfolio without proportionally scaling headcount.
Features
- Generated firmware system from a product model, delivered as readable code in the customer's repositories
- Managed board support and Zephyr integration, enabling a running application on new hardware within a week
- Pre-built connectivity modules for Matter, Thread, KNX IoT, BLE Mesh, and Wi-Fi
- OTA update management with MCUboot, A/B partitioning, and rollback support
- Continuous dependency and security management handled by 4Rooks, not the customer
- End-of-line testing and provisioning tooling included from the start
- Migration path for existing codebases that wraps current code without requiring a rewrite