Overview
28Stone provides custom software delivery services to financial markets, building solutions for sell-side, buy-side, venues, and brokers. It uses globally distributed squads—industry experts plus Europe-based delivery centers—to design scalable, high-performance architectures. Its offerings include a generative AI tool for sell-side market makers to prepare and share pricing and market data, along with rigorous QA and testing. The company differentiates itself by combining cost-effective distributed development with deep capital-markets expertise and end-to-end delivery, aiming to provide dependable, scalable software that supports fast, accurate trading decisions.
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Simplify's take
What believers are saying
- Atlas launched February 16, 2026, adding faster ETF views and rebalance calculations.
- Google Cloud made U4 generally available October 22, 2026, expanding 28Stone's market-infrastructure pipeline.
- 28Stone posted active jobs on November 5, 2026, including Greenwich and Riga roles.
What critics are saying
- 28Stone depends on Google Cloud's capital-markets roadmap and partner goodwill.
- If Atlas stalls, Ultumus can replace 28Stone with another delivery vendor.
- No public evidence shows recurring proprietary software revenue beyond consulting and partnerships.
What makes 28Stone unique
- 28Stone sells domain-specific capital-markets squads, not generic staff-augmentation.
- Its February 2026 Atlas work proved delivery from architecture through APIs.
- November 2026 Google Cloud commentary shows credible expertise in ultra-low-latency trading.
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