Petroleum Exports (PetEx)
In 1990, a founder named Abe launched Petroleum Exports (PetEx) in Aberdeen, Scotland—the heart of the UK's oil industry. He started as a consultant, building mathematical models to help oil and gas companies manage complex projects. While consulting was profitable, Abe saw an opportunity to productize this expertise into specialized software.
PetEx pivoted from pure consulting to software, creating complex products with features like "multi-phase network modeling and optimization" and "therodynamics fluid characterization packages." These weren't sexy consumer tools—they were deeply technical solutions for an industry with genuine, mission-critical needs. The company took 15 years to reach £10 million in revenue, which might sound glacially slow, but it was actually the right pace for building defensible enterprise relationships.
The early customers came through direct relationships in the oil and gas industry. With only 420 customers today, growth was never about scale or virality—it was about solving real, expensive problems for companies that couldn't afford to switch. At $300,000/year per license, a single customer represents enormous value, meaning sales cycles were long but sticky.
PetEx's business model is a masterclass in finding a defensible niche. Their margins work because: (1) they operate in an industry where their software prevents catastrophic mistakes, (2) switching costs are astronomical—you don't rip out software that controls a multi-million-dollar oil rig, and (3) they charge based on actual value delivered, not seat licenses. Last year, they generated £78 million in revenue with £58 million in profit. Instead of reinvesting heavily, they paid out £41 million in dividends to the owner—a 52-cent profit margin per revenue dollar.
With 86 employees generating roughly £911,000 per employee in annual revenue (9x ROI), PetEx is a cash generation machine. They don't need venture capital, they don't chase growth at all costs, and they've built something that will likely endure for decades. In a world obsessed with venture-backed hypergrowth, PetEx proves that slow, profitable, boring B2B software can be just as (or more) valuable than the next unicorn.
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