HALO is an end-to-end design, product, and engineering partner that helps turn HubSpot into a unified, high-performance growth platform. For 20 years, we’ve paired product strategy, design, and engineering to build scalable systems across Web, CMS, CRM, RevOps, and complex multi-system environments. We’re built for teams modernizing their technology, consolidating platforms, improving customer experience, or needing more than a one-size-fits-all setup. With a global team of 300+ and years of HubSpot experience, we specialize in the technical and architectural challenges most agencies avoid. We deliver: ↳ Enterprise CMS, CRM + lifecycle architecture ↳ Custom integrations (e-comm, ERP, CDP) ↳ Governed data models + attribution ↳ Full-stack & API-driven product builds ↳ AI copilots, RAG search & LLM-to-API automation Our model is simple: the same teams that architect your system build it, ensuring fast, cleaner implementations, faster time-to-value, and a platform that scales with you.