Driving Auto Repair Shops Forward

What We Do

R.O. Writer is comprehensive auto repair shop software built to help shop owners optimize every aspect of their business, including service writing, invoicing, customer communications, and more. It is the most feature-rich shop management solution on the market.

Our Mission

To give automotive repair shops the trusted business partner they deserve.

Our Story

How we grew into what we are today and what the future has in store for us.

  • 1997

    Founded as a consulting business

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    We began as a consulting company for dealerships. We worked to streamline the service department, identify lost sales opportunities, improve profit margins, and help with bookkeeping.

    One of our Chevrolet dealer customers asked for help with their parts department. After working with their staff, we created a brand-new inventory management software and counter sales system.

    Around the same time, General Motors™ had stopped publishing their price books, creating the need for parts catalog management. We responded by updating the software to manage these new pricing catalogs.

    This ignited the spark to create R.O. Writer!

  • 1998

    Progressive Automotive Systems creates the first version of R.O. Writer

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    The software began as a DOS application, which was a text-based interface. The software’s popularity grew quickly.

    The Windows version came out shortly after. The processes were closely aligned with the real world, unlike other systems of that time.

    Shops were up and running quickly and could add new items and people to the system in real-time. Owners were also introduced to the ‘Work in Progress’ screen for the first time - something no one else at the time was doing.

  • 2001

    Acquired by Midas for shop software

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    Our success didn’t go unnoticed. One of our customers decided it made good business sense, both strategically and operationally, to acquire the company. In 2001, Midas purchased Progressive Automotive Systems and the R.O. Writer product, moving the entire operation to Itasca, IL in 2004.

  • 2012

    TBC Corporation acquires Midas

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    In 2012, TBC Corporation finalized an agreement to purchase Midas International and its subsidiaries, including Progressive Automotive Systems and the R.O. Writer product. Both operations were moved to the West Palm Beach area starting in 2013, and the Itasca, IL offices were closed.

    New management took over Progressive Automotive Systems as an independent line of business. With the support and resources of TBC Corporation, the R.O. Writer team continued to improve the software with a focus on independent shop operators and franchisees.

  • 2021

    R.O. Writer is acquired by Constellation Software

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    In 2021, TBC entrusted R.O. Writer to the Perseus Group, an operating group of Constellation Software Inc. Constellation was chosen for its proven track record and commitment to helping software companies live up to their potential.

    “The acquisition of R.O. Writer represents a platform investment for the Perseus Group in the automotive repair shop software industry,” said Adam Zimmer of the Perseus Group. “We are looking forward to advancing the development of the product to meet the needs of the thousands of retail and Midas customers.”

Meet Our Team

Aaron Shapiro


Aaron is the President of R.O. Writer. Aaron has been at Perseus (an operating group of Constellation Software Inc.) since 2016. Prior to R.O. Writer, Aaron managed another business in the Perseus portfolio. Earlier in his career, Aaron worked in the Leveraged Finance group at CIBC and as a lawyer at McCarthy Tétrault LLP. Aaron is from Toronto, Canada, and lives there with his wife and son.

Rick Stermole

Director of Business Development

Rick joined R.O. Writer from Midas in 2001, where he managed the initial R.O. Writer rollout to Midas stores, training, distributor management, and marketing. Currently, Rick oversees partner programs and product management. Rick has 45 years of experience in the heavy truck and automotive aftermarket. Rick graduated from Ohio Diesel Technical Institute in 1977. Rick holds several ASE Certifications, including ASE Master Certified Automotive Technician, ASE Master Certified Heavy Duty Truck Technician, and L1 ASE Certified Advanced Engine Performance Specialist. When Rick isn’t working, he spends quality time with his wife, his three children, and seven grandchildren. He also enjoys fishing, boating, water skiing, golf, and woodworking.

Keith Tenen

Director of Development

Keith is the Director of Development at Constellation R.O. Writer. Before joining R.O. Writer, Keith worked for 5 years at TBC, managing their Web and E-Commerce operations. Keith also worked for such companies as NASCAR, Tribune Media, and AOL. Outside of work, Keith enjoys flying and loves billiards, sporting clays, and playing with his dog Gizmo.

Sonia Calcagni

Director of Technical Support

Sonia is the Director of Technical Support. Sonia comes to us with more than 15 years of experience in fast-paced, high-growth POS software companies, where she drove efficiency and productivity through the implementation of robust KPIs and the development of key business processes. Sonia has grown and led multiple international 24/7 helpdesks creating high-performance & customer-centric cultures with employee retention rates of 96%+, improved quality assurance program scores by 15 points, and drove customer satisfaction from 68% to a peak of 91%.

Thomas Zorbas

Director of Professional Services

Thomas is the Director of Professional Services. He has worked in the software industry for almost 25 years implementing and supporting various POS systems across several industries, including retail, hospitality, and automotive. Thomas has experience working as a software developer, configuring, installing, and supporting POS systems (remotely and onsite). For the last 15 years, Thomas has led global teams intending to demonstrate value in every service delivered to customers.

Petra Radic

Marketing Manager

Petra leads the demand, lead generation, and customer communication efforts at R.O. Writer. Petra has 7 years of experience in business-to-business marketing, having worked in a variety of industries executing digital, event, and traditional marketing efforts. During her career, Petra has had the pleasure of working on several multi-tactic campaigns for tech clients such as Amazon Web Services, Intel, Microsoft, HP, and HPE. Outside of work, Petra enjoys spending time outdoors with her husky Boris, oil painting, reading, and advancing her cooking skills.

Saadia Tosif

FP&A Lead

Saadia joined R.O. Writer in the role of FP&A Lead. Saadia is responsible for managing and reporting R.O. Writer’s finances. Saadia holds an MBA and has joined R.O. Writer from Cox Automotive Canada. She has more than 10 years of experience internationally and a strong track record in all areas of finance as well as building and leading teams.