BuildJet vs Extend
Side-by-side comparison of AI visibility scores, market position, and capabilities
Tallinn Estonia GitHub Actions runner platform using gaming CPUs for 2x faster CI at lower cost; YC W23 $500K with $330K ARR competing with Depot and Blacksmith for CI/CD performance optimization infrastructure.
About
BuildJet is a Tallinn, Estonia-based continuous integration (CI) performance platform — backed by Y Combinator (W23) with $500,000 raised from YC in 2023 — providing developer teams with GitHub Actions runners powered by gaming CPUs (AMD Ryzen and Intel Core processors optimized for high single-core clock speeds) that execute CI/CD builds 2x faster and at lower cost than GitHub's standard hosted runners, enabling companies to reduce their CI infrastructure spend and development cycle time simultaneously. Founded in 2022 by Adam Shiervani and Lian Duan and generating $330,000 in annual recurring revenue as of September 2025 with a 3-person team, BuildJet serves the developer community's need for faster and more affordable GitHub Actions compute.
San Francisco AI document processing using LLMs for enterprise data extraction from invoices, contracts, and forms; $17M Innovation Endeavors and YC-backed at multi-million ARR serving Brex and Square cash-flow positive.
About
Extend is a San Francisco-based AI document processing platform using large language models to provide accurate data extraction and document understanding for enterprise workflows — turning unstructured documents (invoices, contracts, medical records, financial statements, onboarding forms) into structured data at the accuracy and cost level that manual processing and traditional OCR cannot match at scale. Backed with $17 million raised in combined seed and Series A funding led by Innovation Endeavors with Y Combinator, Homebrew, and angel investors including Adobe's CSO and Vercel's CEO, Extend reached multi-million dollar ARR and cash-flow positive status serving customers including Brex, Square, Checkr, and multiple Fortune 500 companies.
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