A

AccountOne GmbH Tech Stack

Accounting automation platform for e-commerce sellers across marketplaces

IT Services and IT Consulting Flensburg, Schleswig-Holstein 11–50 employees Founded 2016 Public Company

AccountOne automates tax and bookkeeping workflows for online sellers by ingesting transaction data from marketplaces, payment systems, and storefronts, then routing it to accountants in compliance-ready format. The stack (PHP, MySQL, DATEV connectors) reflects a purpose-built integration layer rather than a modern cloud platform—indicating deep domain expertise in German tax rules and legacy accounting software. Active hiring across engineering, finance, and ops suggests scaling both product development and customer onboarding, with documented pain points around manual reconciliation and tax data entry that the platform directly targets.

Tech Stack 10 technologies

Core StackPHP JavaScript MySQL HTML CSS DATEV Microsoft Office Outlook Word Excel

What AccountOne GmbH Is Building

◆Challenges

Manual bookkeeping
Identifying bottlenecks early
Reducing manual tax data entry
Inefficient manual reconciliation

▲Active Projects

E-commerce-projekte
Digitale buchhaltung
Developing interface concepts to data-providing systems
Improving automated tax mapping
Further development of our software solution
Analysis, development, and maintenance of interfaces to marketplaces, online shops, and payment systems
Custom accounting concept development
Cross-border vat process validation
Client onboarding setup

Hiring Activity

Accelerating8 roles · 5 in 30d

Department

Engineering

3

Finance

2

Ops

2

Sales

1

Seniority

Mid

6

Intern

2

Company intelligence

Find more companies like AccountOne GmbH by tech stack, pain points and active projects

Get started free

About AccountOne GmbH

AccountOne is a German SaaS platform serving online merchants who sell across multiple channels (Amazon, Shopify, marketplaces, etc.) and need to reconcile sales tax and accounting automatically. The product consolidates transaction streams from diverse sources, applies a proprietary tax-rate classification matrix to assign revenue to correct tax jurisdictions and rates, and outputs formatted data for accountants and tax advisors. Founded in 2016 and based in Flensburg, the company operates at 11–50 employees with active development on marketplace integrations, cross-border VAT validation, and custom accounting workflows. The core technical layer connects e-commerce and payment systems to DATEV (the dominant German accounting software), removing manual data entry and reconciliation friction.

HeadquartersFlensburg, Schleswig-Holstein

Company Size11–50 employees

Founded2016

Hiring MarketsGermany

Frequently Asked Questions

What e-commerce platforms does AccountOne integrate with?

Amazon, Shopify, and other online marketplaces and payment systems. The platform automatically ingests transaction data and maps it to correct tax rates and jurisdictions.