Supplemental Type Certificates

Justin Gerber serves as Director of Business Development for Sage-Popovich, Inc. and TOGS Aircraft. He focuses on client engagement, strategic growth initiatives, and expanding relationships across the aviation industry.

Prior to joining SPI, Justin built a strong background in digital advertising and brand partnerships, bringing a modern and relationship-driven approach to business development and market outreach.

Gustavo serves as a Project Manager at Sage-Popovich, Inc. and is an Accredited Member (AM) of the American Society of Appraisers (ASA) specializing in Machinery & Technical Specialties (Aviation). His work focuses on
aviation market research, economic analysis, and trend forecasting for commercial and business aircraft and engines. With experience supporting government agencies, startups, and multinational organizations, Gustavo brings a strategic and analytical approach to asset management and valuation projects. Along with being a strong bi-lingual asset, brings a sense of unity to clients.

He holds a Bachelor of Science in Economics and is skilled in data analysis platforms including SQL, Python, Stata, and Tableau.

Joel began his career with SPI as a student mechanic while earning his FAA Airframe & Powerplant (A&P) certification and studying maintenance management at Lewis University. He later served as the Part 135 Quality Assurance Analyst Manager at a 135 Operator. Today, as Accountable Manager Joel oversees TOGS operations and maintenance activities across multiple local airports, supporting AOG response, MRO services, and day-to-day maintenance operations with a strong focus on safety, efficiency, and reliability.

Retiring from the US Army, John brings over 30 years of experience in aviation maintenance, quality assurance, and engineering support. As an FAA-certified Airframe & Powerplant (A&P) Mechanic, he oversees maintenance operations for SPI’s corporate fleet and supports client projects as an inspector and auditor. Prior to SPI, John retired from the Department of Defense as a Contract Liaison Representative specializing in inspections, audits, and corrective action implementation. He also served as an Aviation Maintenance Instructor with the U.S. Army and holds multiple industrial safety and HAZMAT certifications, along with an Associate degree in Aviation Management and Aero-Electrical Engineering from Vincennes University.

Jaime joined Sage-Popovich, Inc. in 2012 and currently serves on the gifting committee of the Popovich Family Trust. She earned her Juris Doctor from the Maurer School of Law at Indiana University Bloomington and holds a Bachelor of Arts with Distinction in Psychology and Criminal Justice from the same institution. Jaime is a member of both the Porter County and Indiana State Bar Associations. Before transitioning into her full-time role with SPI, she practiced law for nine years at a private firm, building extensive experience in legal counsel and client advocacy.

Brian has over 30 years of experience in inventory control and parts sales. He served in the US Marine Corps as a Recruiter and Aviation Supply Manager before joining AAR Distribution as a Product Line Representative and later becoming a Program Inventory Analyst.

At AAR, he enhanced the vendor base and monitored inventory levels across the logistics chain. Currently, he manages all parts, sales, and liquidation units.

Petar Todorovic serves as President of Sage-Popovich, Inc., having previously held roles including Vice President of Operations, Asset Valuation Manager, and Director of Flight Operations. Additionally, he is a licensed appraiser and Accredited Member of the American Society of Appraisers, a member of ISTAT, and is an FAA Licensed Aircraft Dispatcher. He joined the company in 2014 following graduating from Purdue University’s College of Technology, where he earned a Bachelor of Science degree in Aviation Management with a minor in Business.

Petar oversees operations across Sage-Popovich’s range of extensive aviation services. He also leads world-wide projects, including complex bankruptcy, insolvency, and workout situations, insurance claims and settlements, aircraft and inventory remarketing and liquidations, as well as repossessed and returned assets. In 2020, Petar was recognized by Airport Business as one of the aviation industryʼs “40 Under 40ˮ for his leadership and professional achievements. More recently, he was named one of Indiana Business magazineʼs “20 Under 40,ˮ recognizing emerging leaders within Indianaʼs business community.

With decades of experience in aviation, Nick is a globally recognized expert in asset recovery, valuation, and management. He has served as court-appointed appraiser, arbitrator and liquidator in high-profile litigation and bankruptcy cases. A type-rated pilot in five different commercial aircraft, Nick was inducted into the Living Legends of Aviation in 2017, knighted by the U.S. Army Golden Knights in 2019, and inducted into the IN-Business Hall of Fame in 2020. With Nick’s extensive background in aviation, he has remained deeply committed to giving back to the community.

He actively supports veterans through aircraft donations, aviation career opportunities, and advocacy initiatives, while also contributing aircraft and simulation equipment to technical schools to help develop the next generation of aviation professionals. As Chairman, Nick continues to serve as a leader and mentor to both our team and the aviation industry, remaining dedicated to service, leadership, and making a meaningful impact for both the industry and his clients.