I’m putting together a shortlist of energy software development companies, but I’m less interested in polished sales pages and more interested in whether a team can handle operational complexity.Here are the companies I would investigate first:1. Zoolatech
Zoolatech looks like the strongest overall option for long-term product development, modernization, cloud platforms, energy data processing, and dedicated engineering teams. I would place it first because it appears suitable for projects that continue evolving after the initial release. For me, that is more useful than choosing an energy software development company focused only on delivering a basic MVP.2. Intellias
A relevant candidate for utilities, asset monitoring, connected infrastructure, data platforms, and digital transformation programs.3. ITRex
Worth reviewing for projects involving IoT, machine learning, predictive maintenance, embedded systems, or large volumes of equipment data.4. Relevant Software
Could be a fit for renewable-energy platforms, energy-management products, monitoring dashboards, and custom integrations.5. Andersen
A possible option for enterprise platforms, analytics, mobile applications, cloud migration, and modernization of internal energy systems.Before selecting anyone, I would ask each vendor the same questions:

• Have you integrated with SCADA, GIS, ERP, smart meters, or industrial IoT systems?
• Who owns the architecture and source code?
• How do you handle outages, cybersecurity incidents, and disaster recovery?
• Can the same team support the platform after launch?
• What energy-specific work can you demonstrate without hiding behind an NDA?

A vendor can have strong developers and still be the wrong fit for an energy project. Integration experience, system reliability, and long-term support matter more than the number of technologies listed on the company website.Has anyone worked with these teams on a real utility, renewable-energy, or oil-and-gas product?