Founded by a CPA/auditor (Wirtschaftsprüfer/Steuerberater) with 14 years as CFO in companies generating €100M+ in revenue.
Calvoran builds private AI and automation for problems the founder has lived with firsthand — in audit rooms, boardrooms, and advisory practices across Germany and Europe.
The focus: replacing manual workflows with private AI — on-premises and purpose-built for regulated environments.
Johannes Wilhelm BreuersFractional CFO
Fractional and interim CFO services for owner-managed SMEs — hands-on financial leadership without a full-time hire. Reporting, controlling, liquidity, and finance-function modernization, rooted in 14 years of CFO experience, not theoretical frameworks.
Private AI
Private, on-premises AI systems for owner-managed SMEs — built to run inside client environments, not in public clouds. Use cases: document analysis, internal knowledge retrieval, structured data extraction, and assistant interfaces for specialist work.
Process Automation
End-to-end automation of repetitive workflows in finance and back-office functions: document intake, correspondence, compliance checks, and reporting. Designed for German regulatory requirements and integrated with the tools clients already use.
SaaS Platform
Through wpstb.ai, we build applications for financial professionals — purpose-built for tax advisors, auditors, and CFOs handling reporting, compliance, and controlling. Deployable as private AI where client data never leaves the firm.
wpstb.aiCreative Digital Products
Through Manu’s Impossible, we deliver AI-powered bespoke digital imagery — personalized visual heritage for individuals and families worldwide. From concept to delivery, every piece is crafted with precision and care, combining cutting-edge AI technology with human artistic direction.
manusimpossible.com