Building Software.
Accelerating What's Next.
AI consulting and engineering strategy
A technology holding and consulting firm specializing in AI systems, modern software ventures, and high-leverage engineering execution.
What We Do
Software
Oversight and development of software ventures, including our product studio OptionalSoftware.
Consulting
Engineering and AI strategy for teams that need clarity, acceleration, and senior-level leadership.
Incubation
Early-stage research and exploration of long-horizon software and AI opportunities.
Led by Al Castle
Principal & FounderAl is an engineering executive and multi-time CTO with over 20 years of experience leading technical strategy for startups and publicly traded technology companies.
He has led multiple organizations through acquisition and modernization, driving revenue growth through AI-native automation, platform re-architecture, and operational excellence.
His expertise spans high-leverage engineering strategy, M&A technical diligence, and operationalizing AI systems for revenue growth and reliability.
Portfolio
OptionalSoftware
Our product studio focused on AI tooling and productivity systems, including Concurrent, the multi-LLM benchmarking and evaluation platform.
Consulting
Engineering & AI Strategy
Fractional leadership and scalable technical strategy for teams that need clarity, acceleration, and senior-level execution.
AI Enablement
Turn AI hype into execution. Lead adoption of LLMs across departments, build internal agents, and define safe deployment policies.
Modern Stack Advisory
Cut the legacy, not the momentum. Modernization from monoliths to event-driven, cloud-native systems and scalable architecture.
Org Architect
Design the org that builds the future. Scalable team structures, hiring systems, and engineering culture that grows without breaking.
Get in Touch
For consulting or partnerships:
contact@castle.enterprises