Mark Johnston

Senior Advisor

Mark Johnston provides Cathedral with strong telecommunication industry experience in companies from start-ups to Fortune 500’s.  He has over 35 years’ experience in the technology industry, including sales leadership, strategic planning, product development, marketing, and M&A.  Mark has led M&A deals from $1M to over $2B, ran strategic planning for $750M corporate divisions, set company sales records, and conceived and developed multiple product lines in different companies that led to over $1B in revenues at > 80% GM.  He is an international speaker and author with over 100 articles published and has spoken at industry conferences on six continents.

After helping grow Nettest from a start-up to being acquired by Great Nordic, Mark joined Microtest as VP and led the development of the world’s first LAN cable certification products, resulting in rapid company growth and a successful IPO.  After the company attracted Fluke corporation and was acquired, Mark ran product development, M&A and strategic planning for Fluke Networks. Mark also ran strategic planning and M&A at JDSU prior to its split into Viavi and Lumentum.   In 2011 he founded Telementrix, a management consulting company specializing in M&A best practices, strategic planning, new product development and market research. Mark was the only outside board member at iBwave prior to their successful exit (being acquired by Corning).

Mark lives in Scottsdale Arizona but is often found exploring the world with his wife on frequent international adventures.  He is also a NASA Solar System Ambassador and does over 50 public astronomy outreach events/year.  When not traveling or peering through a telescope, Mark can be found hiking, playing guitar, geocaching and spending time with his children.

Contact Info

(480) 329-8255
[email protected]


“There were some growing pains we were experiencing that people from the Cathedral team really filled in the holes on - from detailed budgeting to forecasting - and just took what was a small mom and pop type shop and said: How do we get more sophisticated in the way that we do business, period? A lot of strategic planning that got all the disciplines covered.

Each step of the way, they provide a resource and they work with your team. They work with me directly as a CEO, but also the key people within the company to help coach them along. They’re advisors that at this point we lean on immensely and really help guide us as we go through some pretty explosive growth.

Kenny Blakeslee

President and CEO of Apex Solutions and Pulse Signal Solutions


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