Tradestack operates at the application layer of the AI agent stack, specifically developing verticalized agents for the UK construction industry. The company builds autonomous workflows that handle back-office tasks such as bookkeeping, quote generation, and CIS compliance management. By integrating with existing communication and accounting tools like WhatsApp, Gmail, and Xero, Tradestack functions as an agentic intermediary that processes multimodal data—including receipts and site documentation—to execute financial and administrative tasks without requiring manual data entry.
For the broader ecosystem, Tradestack demonstrates how agentic workflows can be applied to sectors with historically low digitization. The company champions a "zero-learning-curve" interface by using common messaging platforms as the primary interaction point for its agents. This approach moves away from complex dashboards in favor of a conversational model where the agent performs autonomous task execution while maintaining a human-in-the-loop for final approvals. Their focus is on reducing the administrative burden for trade contractors by deploying agents capable of context-switching between fragmented tools to complete end-to-end business processes.
The Vision: Tradestack is architecting an end-to-end, AI-driven back office engineered specifically for the construction sector. Their mission is to eradicate the "administrative tax" that stifles scalability for trade contractors, evolving beyond basic automation into an autonomous "intelligent workforce" capable of managing everything from financial compliance to sophisticated project estimation.
The Problem & Solution: The platform addresses the inherent friction in traditional construction administration, which typically demands constant context-switching between fragmented tools or reliance on costly, manual agencies. Tradestack's proprietary advantage lies in its zero-learning-curve interface; by utilizing WhatsApp and email, it removes technical barriers for trade professionals while leveraging multimodal AI to process complex documentation, such as receipts and site quotes, in real-time.
Operational Workflow: The solution implements a streamlined three-phase integration: Onboard (linking WhatsApp, Xero, and Gmail), Calibrate (defining project codes and approval thresholds), and Deliver (autonomous task execution where the user retains final approval authority). The system seamlessly manages the lifecycle from a simple site message to a finalized Xero invoice.
Leadership & Recognition: Founded by Sarel van Baalen (CEO), a construction veteran with over a decade of industry expertise, and Vaibhav Pandey (CTO), a machine learning specialist known for scaling AI solutions to millions of users. The company has earned rapid prestige, securing second place at UC Berkeley’s AgentX competition in 2025.
Target Audience: Designed primarily for UK-based trade contractors and construction SMEs. Key personas include Business Owners seeking financial transparency, Accountants requiring automated CIS compliance and job costing, and Office Managers looking to streamline client interactions.
Market Positioning: Tradestack serves as a vital bridge between legacy accounting frameworks like Xero and the established communication habits of field workers. It disrupts conventional bookkeeping and project management models by delivering the velocity and cost-efficiency of artificial intelligence paired with the rigorous precision required for construction-specific compliance (VAT and CIS).
The AI-powered back office, purpose-built for construction.
Tradestack is hiring