About Us

Together, we thrive!

Mainstay Engineering & Owner Reps is a professional engineering company that has distinguished itself by successfully overseeing mining projects valued at over $1B dollars.

We are committed to shared excellence and community prosperity. Our majority owner — Buffalo River Development LP, a wholly-owned entity of Buffalo River Dene Nation (BRDN) — anchors these values and provides strategic direction.

Together, BRDN and Mainstay are playing an important role in Saskatchewan’s thriving mining and industrial sector. We are fostering meaningful opportunities for Indigenous communities through strategic partnerships, workforce development, education, business development, and community relations.

Mission and Vision

Vision: Together, we will create meaningful opportunities and a brighter future for tomorrow’s Indigenous leaders and working professionals.

Mission: We make it easier for Canadian mining and industrial companies to find qualified construction management professionals and engineering services for their teams.

  • Jeff Spence

    PRESIDENT

    For over two decades, Mainstay’s founder and president Jeff Spence has applied his engineering and project management expertise while working in the oil & gas, manufacturing, hydroelectric power, and mining industries.

    Jeff’s practical and approachable style, and strong work ethic make him a natural leader and an asset on any project. He is outcome-focused, with a passion for mentoring and developing the potential of successful project teams.

    Read Bio
  • KATHY MOONEY

    KATHY MOONEY

    OFFICE MANAGER

    “Kathy Mooney is an office administration professional with almost two decades experience in project administration and community involvement. In this role as office manager, Kathy handles the day-to-day office administration including, accounting, property management and human resources. Her passion is recruitment, her talent is successfully resourcing to our clients, and to our office, the professionals whom are both qualified and quality.”

    Read Bio

  • NATHANIEL MARTIN

    CAD MANAGER

    “Nathaniel (Nate) Martin is an intermediate structural and mechanical designer with over four years of experience in the industrial and mining industries. Along with his role as a designer, Nate also manages the companies CAD operations. Nate specializes in mechanical design and has had experience in a variety of other roles throughout his career including structural design, project management, material handling and construction support. Nate enjoys being involved in all aspects of projects, from concept through to completion. This, along with his past experiences, ensures our clients get the best possible solutions for their needs. “

    Read Bio

  • BRAD PEDERSON

    BUSINESS DEVELOPMENT MANAGER

    “A member of the Buffalo River Dene Nation, Mainstay’s Business Development Manager Brad Pederson is passionate about creating opportunities for economic reconciliation and building an Indigenous company that benefits Indigenous peoples and communities for many generations.

    Born with an entrepreneurial spirit, Brad started his first paper route at the age of eight and hasn’t slowed down since! He kicked off his professional career in Saskatchewan’s mining sector after completing his Bachelor of Science in Mechanical Engineering at the University of Saskatchewan. Since then, Brad has gained a wealth of experience managing a range of complex commercial and industrial construction projects across the province.”

    Click Here

  • NEIL MALOTT

    ENGINEERING MANAGER

    “Neil Malott is a senior mechanical specialist with over 28 years of experience in the mining sector; specializing in potash and uranium. Neil has solid engineering management experience including project management, cost estimating, 3D modeling, finite element analysis, CAD/CAM, machining, and welding.”

    Click Here

  • AUSTIN PEPPARD

    JUNIOR DESIGNER

    “Austin Peppard is a junior designer, coming fresh from his education at Saskatchewan Polytechnic, Austin is eager to add to his library of knowledge as a junior designer. Austin’s adaptability, enthusiasm, and future-focused attitude make him a great member of the team. As he continues to gain experience, he looks forward to continuous learning and improvement.”

    Click Here
 

Our team

Succeeding as a team

Mainstay assembles multidisciplinary teams of qualified professionals that include:

  • Construction Managers & Construction Coordinators

  • Project Managers & Project Engineers

  • Schedulers, Planners, & Cost Controllers

  • Safety & Environmental Officers

  • Field Engineers & Project coordinators

  • Document Controllers & Turnover Coordinators

  • Project Administrators & Contract Administrators

  • Supply Chain Managers & Logistic Coordinators

  • Asset Managers & Material Managers

  • Commissioning Managers & Quality Managers

 

Client testimonial

See what our clients have to say

“I have personally worked for Jeff, he was and still is one of my favorite bosses. He builds a knowledgeable team. He is an amazing leader, he brings his A-GAME every time.”

–Sherrie frehlich

 

Our Mission

We make it easier for Canadian mining companies to find qualified construction management and engineering professionals for their teams.

Our Values

  • Experience guides us.

  • We seek to understand.

  • We are results-focused.

  • We nurture relationships.

  • We value rewarding work.

  • We work safely every day.

 
 

Mainstay is trusted by valued partners and clients in the mining industry. We are insured, our professionals are security checked, and the company is registered with ISNet.