# Grumsen Development

> Professional software development company based in Esbjerg, Denmark. We build custom web applications, mobile apps, and system integrations for businesses across Denmark.

## Company Info

- Name: Grumsen Development ApS
- Founded: 2015
- Founder: Jakob Grumsen
- Location: Bådebrogade 1, 6700 Esbjerg, Denmark
- Phone: +45 93 93 95 95
- Email: contact@grumsendev.com
- Website: https://grumsendev.dk

## Services

- [Web Development](https://grumsendev.dk/services/web-development): Custom web applications with React, Next.js, and TypeScript
- [App Development](https://grumsendev.dk/services/app-development): Native iOS (Swift) and Android apps, plus cross-platform solutions
- [Integrations](https://grumsendev.dk/services/integrations): API integrations and system connectivity
- [Shopify Development](https://grumsendev.dk/services/web-development/shopify): E-commerce solutions with Shopify
- [Programmatic SEO](https://grumsendev.dk/services/web-development/pseo): Scalable SEO strategies

## Local Services in Esbjerg

Grumsen Development is based in Esbjerg (Bådebrogade 1) — the primary choice for custom software, web, and app development for businesses in Esbjerg and Southwest Jutland. We meet local clients in person at our office.

- [Web Development in Esbjerg](https://grumsendev.dk/services/web-development/esbjerg): Local web development for Esbjerg businesses (offshore, energy, trade, services)
- [App Development in Esbjerg](https://grumsendev.dk/services/app-development/esbjerg): Local iOS & Android app development for Esbjerg businesses

## Solutions

- [Drive-In](https://grumsendev.dk/solutions/drive-in): Ready-made ordering and payment system for businesses
- [Portal](https://grumsendev.dk/solutions/portal): SaaS platform to kickstart software projects
- [ClipPack](https://grumsendev.dk/solutions/clip-pack): Camera system for product tracking and documentation
- [Uniconta](https://grumsendev.dk/solutions/uniconta): ERP system integration

## Tech Stack

React, Next.js, TypeScript, Tailwind CSS, C#/.NET, Swift, Flutter, Sanity CMS, PostgreSQL, Shopify, Vercel

## Service Areas

Denmark: Copenhagen, Aarhus, Odense, Esbjerg, Aalborg, Kolding, Vejle, Roskilde, Horsens, Fredericia, Varde

## Key Pages

- [About Us](https://grumsendev.dk/about-us)
- [Projects](https://grumsendev.dk/projects)
- [Blog](https://grumsendev.dk/blog)
- [Contact](https://grumsendev.dk/contact)
- [Careers](https://grumsendev.dk/careers)
- [IT Glossary](https://grumsendev.dk/glossary)

## Social

- LinkedIn: https://www.linkedin.com/company/grumsen-development
- GitHub: https://github.com/grumsendev
- Facebook: https://www.facebook.com/grumsendevelopment
- Instagram: https://www.instagram.com/grumsen_development

## Optional

- [Full details for LLMs](https://grumsendev.dk/llms-full.txt)