Don Culeton
Chief Executive Officer

As Chief Executive Officer of IDI Billing Solutions, Donald Culeton uses his depth of experience as a software engineer and his visionary outlook to direct the development of the company’s Billing as a Service solution.

Under his stewardship, IDI has grown from start-up to industry leader, earning the company recognition as an Inc. Magazine 5000/500 company five times and securing numerous industry awards. Culeton was also named one of the “25 Most Influential People in Telecom Software” by B/OSS Magazine in 2011.


Patrick Talty
President and Chief Security Officer

As President of IDI Billing Solutions, Patrick Talty leads the company in its overall day-to-day activities and execution of key strategic objectives. Patrick has a broad and diverse knowledge of solutions architecture, software development and business operations management. He has held a variety of positions at IDI since 1997 including Vice President of Operations and Chief Security Officer, overseeing many aspects of the company’s cloud operations, professional services and compliance programs. Prior to joining IDI, Patrick implemented security solutions throughout North America and Europe for Eastman Kodak.

Patrick holds an MBA in Executive Leadership and Applied Management and a Bachelor of Science degree from Rochester Institute of Technology (RIT). He retains CGEIT® and CISM® credentials for professionals who manage, design and oversee enterprise information technology and security programs. Patrick is a member of the Dean’s Advisory Council at RIT’s Saunders College of Business and mentors graduate students in the Saunders Leadership Fellows Program.


Sue Sharp
Chief Financial Officer

Sue Sharp has been with IDI 20 years overseeing IDI’s financial strategy and integrity. She is responsible for the capital and operating budgets, financial reporting, audits, internal controls, tax management and Plan Administrator of the 401(k) Plan. She has managed the company through fluctuating markets situations and established financial best-practices and improved internal controls. Sue has also worked with local government and banks to obtain grants and loans to meet key company initiatives of growth.

Sue has over the years volunteered on several local non-profit organizations and is currently volunteering on the Victor Dollars for Scholars Investment Board and a local CFO Roundtable Group.


Derrick Van Grol
Vice President, Global Sales

Derrick Van Grol has more than 27 years of experience marketing mission-critical software to companies throughout North America. Van Grol began his career at Eastman Kodak Company where he managed a team of product marketing specialists selling high-end digital imaging and access control systems to the Fortune 1000 marketplace, law enforcement agencies, and the Federal Triangle.

One of the original founders at IDI, Van Grol has been a key contributor to our industry standing as a leader in the B/OSS marketplace servicing not only entry level CSPs with growth plans, but also titans such AT&T, Comcast, Telstra and Mitel.


Tim Wrona
Vice President, Marketing & Professional Services

Tim Wrona joined IDI after nearly two decades working with communications service providers. He oversees the corporate marketing and professional services organizations which are focused on providing a compelling value proposition and delivering on best-practices consulting and service delivery.

Tim has held management and executive positions at AT&T, RCN Corporation, Frontier Cellular, Verizon Wireless and Current Communications.


Steve Kosarko
Vice President, Product Development & Strategy

Stephen Kosarko joined IDI in 1996 after several years at Eastman Kodak and subsidiary Edicon. Kosarko oversees the development and build out of the company’s long-term technology vision.

Under his direction, IDI achieved Gold Partner status as a Microsoft Independent Software Vendor (ISV).


Carmen DeFeo
Vice President, Customer Relations

Carmen DeFeo leads the Sales and Account Management teams responsible for the strategic sales plan and advocacy of IDI’s customer base. His organization ensures that IDI has an in-depth understanding of customer business imperatives, positions appropriate IDI products and services, and provides timely, meaningful communications.

Carmen has more than 20 years of experience in the telecommunications industry, including Frontier Communications, ChoiceOne, Global Crossing and Current Communications, with an established track record in achieving results and motivating organizations to deliver world-class customer experience.


Debi Jones
Vice President, Human Resources

Debi Jones joined IDI Billing Solutions in 2008 and has over 20 years of experience in personnel management and advocacy. She is responsible for developing and executing human resources strategies in support of the overall business plan and strategic direction of IDI. Her team has successfully fostered a company culture where personal growth and professional achievement are recognized and rewarded.

Debi is also a member of the Board of Directors for the United Way of Ontario County and the Board of Directors Chair for the Finger Lakes Community College Foundation.

Our success depends on the energy and attitudes of our employees – our greatest inspiration.

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