Mid-market and private-equity-backed companies needing senior engineering capacity fast, without a 12-month staffing contract, are the fit: Limestone pairs forward-deployed engineers with a delivery-metrics dashboard and promises no invoice unless throughput improves, an alternative to traditional staff augmentation or hiring AI engineers in-house from scratch.
Limestone Digital is a Prague, Czech Republic software engineering firm that embeds AI-native 'Velocity Pod' teams, roughly 1.5 engineers each, directly into client codebases on month-to-month contracts, billing against measured delivery gains rather than time and materials, with a focus on regulated industries such as healthcare, insurance and lending.
Founded: 2016 · HQ: Prague, Czech Republic · Team: 100-200 · CEO: Mark Ajzenstadt · Funding: Privately held; no external funding rounds publicly disclosed (RocketReach estimates roughly $5M 2026 annual revenue, unconfirmed by the company)
About Limestone Digital
Limestone Digital is a Prague-headquartered software engineering firm founded in 2016 by Mark Ajzenstadt, who remains chief executive, alongside co-founder Levy Lieberman, now a partner leading the company's MarTech practice. The company is incorporated as Limestone Digital s.r.o. under Czech law. It began as a software outsourcing and product-development shop serving fintech, gaming and logistics clients, and built delivery centers across Ukraine, Poland, Colombia and Brazil alongside its Prague base. Over the past two to three years the firm repositioned around AI-native software delivery, shifting from staff augmentation toward embedded, outcome-billed engineering pods for mid-market and private-equity-backed companies in regulated industries. The company sells three named engagements: Custom AI Agents, building agentic systems from data foundation to production; AI Training & Enablement, pairing engineers with a client's own team until it can build with AI unsupervised; and Accelerated AI-Native Delivery, marketed as AI SDLC, which rebuilds the software lifecycle so agents handle routine work under human quality gates. The delivery unit is the AI Velocity Pod, a roughly 1.5-FTE team of one forward-deployed engineer plus shared specialists, paired with an internal measurement product Limestone calls the Dev Intelligence Platform, which tracks throughput and defect rates against a client's own baseline. Engagements follow an eight-step process, from a diagnostic sprint through production delivery, weekly measurement, and an optional capability handoff back to the client's team. In July 2025 the company published what it calls the Limestone Protocol, a six-week sprint framework for modernizing legacy tech stacks, and followed in October 2025 with a case study describing one client data-integration engagement it says multiplied that client's company valuation by a factor of 20. Limestone has not published independent verification of that figure. The company maintains an active blog, publishing roughly twice a month through late 2025 on AI-native delivery, architecture and enterprise-value themes. Limestone bills month-to-month rather than the 12-month terms typical of staffing and consulting firms, and markets an outcome-based guarantee it calls 'no measured uplift, no invoice,' tying at least part of the fee to metrics tracked on the Dev Intelligence Platform. Pod pricing is quoted per engagement rather than published. Limestone has not disclosed any external funding rounds and does not carry a public funding history on Crunchbase; the data aggregator RocketReach estimates roughly $5 million in 2026 annual revenue, a figure Limestone has not confirmed. Leadership beyond Ajzenstadt includes Anatolii Kramarenko as chief operating officer, Viktoriia Lapa as chief financial officer, Kate Kuzmenko as vice president of human resources, and Anastasiia Milokhina as head of design, all named on the company's own team page. Employee-data providers ZoomInfo and RocketReach put current headcount at roughly 105 to 115, while Limestone's own marketing cites more than 200 engineers across its delivery network, a figure that likely includes contractor and partner capacity beyond core payroll. Delivery locations span the Czech Republic, Ukraine, Poland, Colombia and Brazil. Limestone competes against two different kinds of firms depending on the deal. Against offshore staff-augmentation and IT-outsourcing shops, it argues outcome billing and an AI-native process beat plain headcount-for-hire pricing. Against AI coding-assistant vendors such as GitHub Copilot or Cursor, it positions itself as selling delivered outcomes rather than a per-seat tool. Its position is weakest against larger systems integrators serving the same regulated verticals, where Limestone's smaller scale cuts against it on enterprise-wide programs even as its embedded, month-to-month model can start faster.
Mission
Building AI-native engineering capability inside client teams through embedded, outcome-measured delivery rather than traditional staffing or consulting.
Products
- AI SDLC (AI-native software delivery lifecycle service): https://limestonedigital.com/services/ai-sdlc
- Custom AI Agents (Agentic system development engagement): https://limestonedigital.com/services/custom-ai-agents
- AI Training & Enablement (Team AI upskilling engagement): https://limestonedigital.com/services/ai-training-enablement
- AI Velocity Pod (Embedded engineering delivery unit): https://limestonedigital.com/services/ai-sdlc
- Dev Intelligence Platform (Delivery telemetry and measurement dashboard)
Links
Frequently Asked Questions
How much funding has Limestone Digital raised?
Limestone Digital is privately held and has never announced a venture round; it carries no public funding history on Crunchbase. Data aggregator RocketReach puts 2026 annual revenue at roughly $5 million, a figure the company itself has not confirmed.
What services does Limestone Digital offer in 2026?
Limestone sells three engagements: Custom AI Agents, AI Training & Enablement, and an AI-native delivery service branded AI SDLC, delivered through 'AI Velocity Pod' teams. Contracts run on a rolling monthly basis, a deliberate contrast to the annual staffing agreements common in the industry, and Limestone does not publish a rate card, quoting each pod individually.
How does Limestone Digital handle data privacy and compliance?
Limestone has not published an audited certification such as SOC 2 or ISO 27001, and HokAI could not locate a public trust center for the company. It markets HIPAA-ready and GDPR-aligned delivery for clients in healthcare, insurance and lending, but that describes engagement scope rather than an independent audit of Limestone's own systems.
Who are Limestone Digital's main competitors?
Limestone competes with offshore staff-augmentation and IT-outsourcing shops on cost and speed to start, and with AI-assisted developer tooling, for example GitHub Copilot or Cursor, which sells a per-seat license rather than a delivered outcome. Against larger systems integrators in the same regulated industries, Limestone is smaller but faster to mobilize.
How do you start working with Limestone Digital?
Prospective clients book a discovery call through the company's site, which leads into a diagnostic sprint that baselines current delivery metrics on Limestone's Dev Intelligence Platform before a pod is assigned. Limestone says production code ships within 30 days of a pod's onboarding.