Founder of a listed tool
Carlos Hernández
Founder and CEO, Quaderno, named behind the Quaderno listing on Anchor Terminal.
What Carlos builds
Quaderno C · Tax calculation & compliance
Sales tax, VAT and GST software for online businesses from Recrea Systems, a Visma company in Spain. Its REST API calculates tax for a sale, records sales and refunds, issues invoices and credit notes and exports tax reports.
Founder and CEO, Quaderno, researched 28 October 2026 · the people behind it
Questions
Who is Carlos Hernández?
Carlos Hernández founded Quaderno in 2014 to make tax compliance simpler for online businesses, and is its CEO. A software engineer and product designer, he bootstrapped the company before it joined Visma in 2023.
What does Recrea Systems, SL make?
Anchor Terminal lists Quaderno from Recrea Systems, SL. Sales tax, VAT and GST software for online businesses from Recrea Systems, a Visma company in Spain. Its REST API calculates tax for a sale, records sales and refunds, issues invoices and credit notes and exports tax reports.
How are Carlos's tools graded?
Quaderno is graded C, 59.6 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.
Sources (4)
These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.