Raskr AB, Stockholm Org.nr 559578-0957

Raskr is a software company in Stockholm, built on agent-first engineering: AI agents build and verify virtually all of our code.
Our product, Sixten, answers customer enquiries, proposes bookings, and drafts quotes for Swedish trades firms.

The same principle governs product design: our software is built to be operated by agents first. Human interfaces follow.

Company

Legal name
Raskr AB
Organisationsnummer
559578-0957
Legal form
Aktiebolag (Swedish limited company)
Registered
2026
Registered office
Stockholm, Sweden
Contact
[email protected]

Every line above is on the public record. Check them at Bolagsverket (opens in a new tab), the Swedish companies registration office.

The product

Sixten is an AI assistant for Swedish plumbers, electricians, and builders. It answers customers in the firm's own name, asks what the job needs, proposes a time, and drafts the quote and the invoice, so the tradesperson can stay on the tools.

Customers reach Sixten by phone, email, or chat apps. The tradesperson runs the job from a web portal or from WhatsApp: bookings, quotes, ROT deductions, and invoices through the firm's accounting software, starting with Fortnox.

Sixten drafts; the tradesperson decides. No price, booking, or invoice goes out until a person says yes. Sixten never quotes a price it has not read from the firm's own records, and never pretends to be human.

We run Sixten with a first group of trades firms. See sixten.work (opens in a new tab).

People

Henrik Barratt-Due

Co-founder & CEO

More than twenty years of building software and leading engineers. Co-founded Cygni, the Stockholm consultancy acquired by Accenture, and has architected enterprise-scale systems for government, finance, gaming, and transport. Trained at KTH. Now betting all of it on agent-first engineering.

LinkedIn

Ragnar Rova

Co-founder

Shipping software since the late 1990s, including eighteen years as a Cygni consultant alongside Henrik. Assignments include gameplay development on Minecraft at Mojang Studios, seven years building the API platform behind SVT Play, and FX-trading analytics at SEB. Trained at KTH. Back in a startup because building finally moves as fast as thinking.

LinkedIn