Seneca Companies provides clients with "The Complete Solution" from project design and planning to maintenance, service, parts distribution and compliance.
Although known as an established leader in the Petroleum Industry, Seneca Companies is made up of several divisions working together to serve a wide array of industries' needs. Each unit consists of an experienced and knowledgeable team, focused on delivering prompt, full-service specialty solutions. It is this diversity that ensures we deliver "The Complete Solution" to customers.

Remediation & Process Controls


Fuel Systems



General Contracting


Waste Solutions Services





Automotive & Commercial Equipment