About Open Source Integrators
ERP Solutions from world-class teams leveraging best practices

Greg Mader

President
Greg’s career spans more than 25 years and includes experience in business, operations, manufacturing, and leadership. He holds two master’s degrees: a master’s in geography from South Dakota State University, and a master’s in computer science from the University of Chicago.

Greg spent much of his career implementing enterprise technology suites for government and commercial organizations. Between 1995 and 2005, Greg worked for county government, consulting, and commercial organizations as a county enterprise system coordinator, database manager, and product and project manager. Prior to establishing Open Source Integrators, Greg spent six years as the manager of Esri Defense and Intelligence Services, where he directed consulting operations and managed a software development team of 65 staff members in four locations. In this role, Greg led the creation of the CJMTK Geospatial Appliance, a comprehensive system for enabling military analysis and visualization.

Greg spent 21 years in the Army National Guard, Army Reserve, and on Active Duty, where he retired at the rank of Major and was responsible for the planning and operations of a 452-soldier organization. During his Army tenure, Greg received numerous individual awards and two unit commendations for team excellence.

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Financial Accounting with Odoo.
We literally wrote a book about it.

Enhance your Odoo experience with our exclusive open source modules and resources.

Meet Our Team

Open Source Integrators’ team of trusted ERP technicians assures best practices and right-sized technology. OSI provides full discovery teams or single, top-level consulting experts.

Mayank Gosai
Software Engineer
Ron McBean
Support Specialist
Greg Mader
President
Ronda Mader
Accounting Manager
Jennifer Campbell
Consulting Manager
Balaji Kannan
Technical Manager
Wolfgang Hall
Field Service and Mobile Asset Leader
Branislav Dovedan
E-Commerce Leader
Patrick Kittredge
Project Manager/Consultant
Maxime Chambreuil
Project Manager/Consultant
Ed Allen
Project Manager/Consultant
Serena Cyr
Project Manager/Consultant
Antonio Yamuta
Implementation Engineer

The Whole is Greater Than the Sum of its Parts

Individually or together, these premier suites of business applications offer open source ERP solutions tailored to your company’s unique business needs.

As a top Odoo integrator in the US, we will help your team discover why Odoo is among the most trusted Open Source ERP applications, with end-to-end ERP accounting integrations simplified by the pros.

ERP customers can enjoy all the robust capabilities of real-time data sets to inform their ERP solutions, operations and leadership teams. If you are looking for Hadoop done right, you’re in the right place.

There are websites and then there are e-commerce sites. E-commerce at the next level starts with a robust CMS solution. Find out why Open Source integrators look first to Magento for the heavy lifting.

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