Mark Madigan CEO

​Mark is a seasoned optical industry executive with deep experience in the thin film manufacturing industry. He led executive management and business development teams at JDSU, Sonoma Photonics and OCLI (Optical Coating Laboratory, Inc.) before founding MAC Thin Films in 2014. Mark's goal for MAC Thin Films is to build upon a successful long-term track record of collaborative innovation with key customers to deliver solutions with differentiated value to customers around the world.


Mark Sinigiani, Business Development & Product Line Manager

​​Mark's career spans four decades in the thin film vacuum deposition and optical filter manufacturing industry. He has held leadership roles in operations management, quality engineering, applications engineering and product development. Mark’s cumulative experience with OCLI, JDSU and, most recently, MAC Thin Films Inc. uniquely qualifies him to identify customer needs and meet specific performance expectations. Mark’s goal is to combine his knowledge and experience in this industry to deliver the best products and service possible.


Julie Leonhard, CFO

Julie is a Certified Public Accountant and experienced financial executive specializing in the needs of entrepreneurial, start-up and fast growth entities. Julie excels at establishing financial operating systems and processes enabling fast growth entities to ramp efficiently and cost effectively. Her strategic financial approach for MAC Thin Films Inc. is to keep overhead low and innovation high.


Dave McLean, Engineering Manager

Dave is an innovative technical leader focused on delivering high value products to our Customers and ensuring that MAC Thin Film’s manufacturing processes continue to implement foundational new technologies.  He has 15 years of experience in the thin film coating industry with roles in project management, manufacturing, quality and R&D.  Dave and his team collaboratively work with our business partners to deliver effective, manufacturable product solutions that maximize our mutual success.


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And our Products and the Industries we serve