Management Team

Thomas M. Barrett

President and Chief Executive Officer

Tom Barrett has 25 years of management experience in high growth enterprises, from startups to Fortune 500 companies. He has extensive experience in building and developing high performing teams and delivering results. Barrett was most recently CEO of several portfolio companies at Brennan Management Group. Prior to that he was the GM/Executive Director of, where he developed and led sales teams for the global knowledge exchange that provided more than 30,000 e-learning courses on the LMS. Barrett also built and led the North American sales organization for iPass, a leading global remote access provider, which grew from startup to $100 million in recurring annual sales during his tenure.

Tom has been an active contributor to the Cleveland community with The Ohio Business Roundtable, Young Presidents Organization, St. Ignatius High School, the Great Lakes Science Center, Catholic Charities and the Community West Foundation. Barrett earned a B.A. in Organizational Communications from the University of Kansas.

Russell Wangler

Chief Technology and Product Officer

Russ Wangler is a modern Agilest whose dedicated to delivering software value continuously. He is an architecturally fluent, modern technologist who enables innovation with agility, a requirement for today’s digital organizations. Russ also believes in Lean principles, transparency, and value stream mapping to improve project visibility and business performance.

Russ spent ten years at Accenture in various consultant roles before assuming the position of Director of Process Management and Enterprise Solution Delivery at Nationwide Insurance. Wrangler then progressed to The Gap where he directed Technical Management at the Columbus, Ohio Agile Development Center. He was responsible for delivering on multi-million dollar software projects, and developed a center of software competence by instituting using Lean and Agile practices to improve organizational agility. Russ graduated Summa Cum Laude from Bowling Green State University with a BS degree in MIS, Computer Science and International Business.

Don Cook

Chief Marketing Officer

Cook brings more than 15 years of global marketing leadership experience and a proven track record of driving innovation, market adoption and growth across the technology and Software-as-a-Service (SaaS) industries. Cook’s omni-channel strategies have supported growth initiatives, served as a platform for international expansion and driven demand for new product launches leading to millions in sales; venture capital and equity investments; and over $1 billion in acquisitions.

Cook’s approach to marketing has helped to lead industry visionaries Learn.comTaleo Corporation and iCare in the disruption of their respective industries.

Simon Renouf

Vice President of Product

Simon Renouf is a multi-disciplinary business leader with 20 years of operational product management, marketing and sales experience across B2B SaaS, IT Services and Telecommunications. He has extensive experience building and executing successful product strategies in complex technical environments.

Most recently, Simon spent 8 years at iPass Inc – where he successfully drove revenue growth through carrier partnerships in the Pacific region before moving to San Francisco as Head of Product Management. iPass was acquired in February 2019.  Prior to that he developed and managed multi-technology solution for Telstra, with a focus on Enterprise Mobility and teleworking enablement for Enterprise.

Simon has a B.Com and B.A. from the University of Melbourne, Australia and a M.eBus from RMIT University.

Eric Camulli

Vice President and Customer Success Officer

Eric is responsible for building a world-class customer-centric brand focused on delivering high quality and highly productive experiences for its customers. A visionary and passionate customer advocate, Eric has been at the forefront of the customer experience management movement as a public speaker and published writer for the past ten years.

Formerly of Virtual Hold Technology in Akron, Eric has over fifteen years of experience in the communications industry. Eric combines technical know-how with an understanding of the challenges facing today’s enterprises. Eric received his BBA from the University of Cincinnati and Executive MBA from Baldwin Wallace University.

Allan Wallander

Chief Financial Officer

Allan Wallander is a seasoned financial management professional with over 25 years of accounting, finance and operational management experience. As the CFO, Allan is responsible for the management of accounting, finance, procurement and human resources. Prior to joining 7 SIGNAL, Allan held CFO positions at Market6, DotLoop and U.S. Shoe Corporation.

Allan received his BS in Accounting and MBA from Marquette University.

Marko Pirinen

Vice President of Technical Services

Marko is the co-founder of 7SIGNAL and is a 22-year wireless industry technology veteran with expertise in Wi-Fi/WLAN, GSM/EDGE, WCDMA/HSPA technologies. Marko has been instrumental in growing 7SIGNAL’s international customer base across many vertical markets. Responsible for all aspects of customer service and support, Marko has built a world-class department which has helped and educated numerous customers with improving Wi-Fi network performance.

Prior to 7SIGNAL, Marko was a Network Specialist with Nokia Networks and led several end-to-end performance projects in the E2E Solutions Development Department. The mission’s goal was to verify end-to-end performance and radio access service, and propose systematic corrective actions. Many of the projects were executed in operator networks worldwide.

Marko was also a member of the team whose responsibility was to build, verify and demonstrate the world’s first full IP based mobile network demonstration system. The system was successfully demonstrated in several exhibitions and for several operators in Europe.