In a world obsessed with flashy SaaS valuations, SJE Rhombus operates in the shadows of heavy industry, generating $83.9M annually from something unsexy but critical: keeping water out of basements and wastewater flowing. They've been doing it since 1975.

"This isn't a startup chasing growth—it's a cash-flow machine that solves a physical problem with electric controls, and it's been profitable for nearly 50 years."

The tech stack reveals a pragmatic approach: jQuery, Bootstrap, Tailwind CSS. This isn't a company burning cash on bleeding-edge frameworks. They're building functional interfaces for industrial buyers who value reliability over flash. Their login portal (sje.conceptconfigurator.com) suggests a custom configurator tool—likely a key differentiator that locks in B2B relationships.

• Pump control panels with overcurrent protection and timers
• Float switches that have become industry standards
• Alarm systems for critical infrastructure monitoring
• Custom configuration tools for engineering partners