We build the software others won't
AI platforms, data systems, and production software — for problems too specialized, too urgent, or too sensitive for standard teams and tools.
Sixteen years of systems that ship — and stay shipped.
From a market-research platform built in 2010 to AI-powered analytics today. When Norway locked down, we shipped a COVID survey system in three days.
Citrus Analytics — Fusion
AI-powered survey analytics. Agentic AI + advanced statistics, invented and built by Martin.
→ 2022Encount Data Lake
Automated processing of Norwegian transport surveys for Opinion AS. 510K+ responses.
→ 2020Norsk Koronamonitor
Automated COVID phone survey. Built in 3 days. Up to 700 interviews a day.
→ 2010MROC Platform
Research community platform — 16 years in production, serving Opinion AS today.
→Citrus Analytics — Fusion
AI-powered survey analytics that reduces 3-hour expert analyses to 30 minutes. Autonomous AI agents run regression, segmentation, and clustering with full transparency — every number from executed code, every insight evidence-graded. No black boxes.
Read the full case study →Norsk Koronamonitor
When Norway locked down in March 2020, Opinion AS needed population-scale surveys fast. We built an automated IVR phone-survey system in 3 days. It scaled from 300 to 700 interviews a day and ran continuously for years.
What we bring to ambitious projects
AI & Machine Learning
Agentic AI, natural language processing, statistical modeling, intelligent automation.
Data Engineering
Pipelines, ETL, statistical weighting, multi-source orchestration.
Cloud & Infrastructure
Docker, CI/CD, PostgreSQL, Redis, scalable architectures.
Full-Stack Platforms
Python, Angular, FastAPI, IVR/telephony, production-grade systems.
Martin Thorsen Ranang, PhD
PhD in Computer Science from NTNU. Inventor of Fusion, the AI survey-analytics platform from Citrus Analytics. Building production software since 2010 — and bringing in senior specialists when the project calls for it.
More about Martin →