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Business Details
32 Years
experience
Your Trusted Engineering Partner Since 1994
Since 1994, PSI has delivered rapid and effective engineering solutions to clients across diverse industries. Founded in Colorado, we've grown from a single-person operation to a multi-office firm with over 500 years of combined experience in engineering, project management, and field services. Our team of engineers, drafters, and technicians specializes in practical solutions that balance financial, operational, and technical goals while maintaining strict compliance with federal, state, and local regulations. We serve commercial, industrial, municipal, oil and gas, renewable energy, and utility sectors nationwide, offering services from conceptual planning to turnkey project execution.

Our culture of hard work, collaboration, and integrity has fostered long-term client relationships, with our employees recognized as the key to our 25+ years of success. We maintain offices in Colorado, New Mexico, Wyoming, and Utah while providing nationwide support through experienced field personnel and established contractor networks.
Services
Project Management Engineering & Design Drafting Services Construction Management Corrosion Control Integrity Assessments Operations Support Pipeline Inspection Facility Design Maintenance Services
Details
  • Year established: 1994
Highlights and features
  • We offer 25+ years of specialized engineering experience in energy infrastructure
  • Our team maintains 500+ combined years of technical expertise across disciplines
  • Nationwide service capabilities with local office support in four Rocky Mountain states
  • We implement practical solutions balancing technical requirements with financial constraints
  • Established contractor networks enable rapid response and cost-effective project execution
Services
Project Management
PSI provides comprehensive project management services from initiation through completion. Our experienced team utilizes advanced scheduling tools like Primavera P6 to manage scope, schedule, and budget for projects of all complexities. We offer turnkey EPCm solutions or targeted support for specific project phases while maintaining strict regulatory compliance.
Engineering & Design
Our engineering team delivers technical solutions for energy infrastructure projects using the latest modeling software. Services include pipeline system design, facility engineering, and compliance documentation tailored to federal and state regulations. We specialize in automation systems, mechanical design, and structural analysis for diverse energy applications.
Corrosion Control
PSI's corrosion specialists provide comprehensive pipeline and facility integrity management. Services include cathodic protection systems, in-line inspection analysis, and corrosion mitigation design. Our team conducts failure analysis, implements integrity management plans, and performs AC interference testing to maintain system safety and longevity.
Construction Management
We offer full-spectrum construction management including quality control, contractor coordination, and compliance verification. Our services cover land acquisition, construction surveying, welder certification, and third-party inspection support. Experienced personnel ensure project execution meets technical specifications and safety standards.
Drafting Services
PSI produces precise engineering drawings using advanced CAD software. Our drafting team creates 3D models, piping diagrams, civil plans, and construction documents for energy infrastructure projects. Services include permit drawings, isometric packages, and digital mapping to support project execution and regulatory compliance.
People
Michael Marchessault
CEO
With mechanical engineering and MBA credentials, Michael leads PSI's strategic direction after starting as a field engineer. He oversees project execution and operational efficiency while balancing family time with four children.
Brandon Endres
COO
A civil engineering technology graduate, Brandon directs business operations and drafting services. He combines technical expertise with management responsibilities while enjoying Colorado's outdoor activities with his son.
Shane Holecek
Senior Vice President
As PSI's first intern, Shane brings 16 years of ExxonMobil experience to his leadership role. He manages engineering departments while maintaining active involvement in professional development and family outdoor activities.
George Fernandez
Corrosion Manager
With 30 years in corrosion control, George specializes in pipeline integrity management. His expertise includes cathodic protection design and field testing while maintaining a Wyoming ranch with livestock operations.
Dan Nichols
Engineering Manager
Dan leads PSI's engineering group with expertise in pipeline design and integrity management. A Colorado native, he balances field work with local community engagement and cycling activities in Colorado Springs.
Questions
What industries does PSI serve?
PSI supports commercial, industrial, municipal, oil and gas, renewable energy, and utility sectors with engineering and construction services.
Where does PSI operate?
While headquartered in Colorado Springs, we provide nationwide services with regional offices in New Mexico, Wyoming, and Utah.
What project sizes does PSI handle?
We manage projects from small maintenance tasks to large-scale infrastructure developments with teams ranging from single inspectors to 100+ personnel.
How does PSI ensure project quality?
Our quality control combines experienced personnel, advanced scheduling tools, and established contractor networks to maintain technical standards and budget compliance.
What makes PSI different?
We combine 25+ years of energy sector experience with 500+ combined years of technical expertise, maintaining flexibility for both temporary support and full turnkey projects.