Mark Coltrin LLC is a small, veteran-owned limited liability company located in Columbia, Maryland, with offices in Fairfax, Virginia. With his beginnings starting at Starpower through to his years running Coltrin Consulting — and his humble start at Ameritech — Mark brings well over twenty-six years of experience in telecom, sales, and business development.
He has built a reputation for delivering results across large-scale telecommunications, media, and business strategy in and out of the DMV. We bring a tailored, client-first approach to every project — combining analytical rigor with real-world execution.
We believe great consulting is built on trust, long-term relationships, and a genuine commitment to each client's success.
A full-spectrum practice covering web technology, referral strategy, marketing, lead generation, and more. Additional service details coming soon.
Full-cycle web and technology consulting from design through deployment and ongoing management.
Strategic referral services backed by deep industry knowledge, a proven network, and the tools to track, optimize, and grow every connection.
Comprehensive marketing services to grow your audience, strengthen your brand, and drive measurable results across digital and traditional channels.
Strategic business planning from concept through execution. Full service details coming soon.
Identifying, qualifying, and nurturing prospects to build a consistent pipeline that drives sustainable business growth.
A career built across internet, video, music, cable television, and telecom infrastructure — throughout the DMV and beyond.
During his tenure at StarPower, most of the larger video and internet projects were designed, implemented, and delivered under their umbrella. From Dark Fiber to Video and PRI and backup services — Mark was hands-on through every phase of these large-scale deployments across the DC Metro region.
During his tenure at Muzak, working alongside Dish Network executives, Mark was able to put together a go-to-market strategy for video services — built upon Dish Network's music service as the main platform. He developed, planned, and delivered a winning strategy for current clients, bridging the gap between established music infrastructure and emerging video delivery.
Full project details for Sky Television Inc. are coming soon. This section will cover Mark's extensive work in cable television throughout the DC Metro region — a body of work spanning thousands of projects over many years alongside Jim Kosuta.
Mark Coltrin LLC operates from two offices, serving clients throughout Maryland, Northern Virginia, and the broader DC Metro region.
Our main office, serving clients throughout Maryland and the greater DC Metro area.
Our Northern Virginia office, serving clients across Fairfax County and the surrounding DC Metro region.
Have a project or challenge you'd like to discuss? Reach out — we'll respond within one business day.
Whether you're looking for a strategic partner, a referral, or just want to explore what's possible — we're here for it.