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How Can We Help You?

Over the last few years, many of the best senior-level digital marketers decided to go freelance. Creative directors, social media managers, SEO experts, paid media ninjas, content creators, and more. They no longer wanted to live the agency life.

At the same time, many brands are looking for more innovative ways to collaborate with external talent.

Strategic. Nimble. AI-enabled.

That's why Signal59 operates as a "collective' of digital marketing experts. No junior employees or high overhead costs. Just senior-level experts ready to solve problems.

We customize our approach to each engagement. And provide transparency along the way.

Founder - John Hartman 

John is a Fraction CMO with over 15 years of digital marketing experience across strategy, design, social and paid media. John started his career at Accenture, worked at numerous start-ups and was President and co-owner of Piston which was named the iMedia Small Agency of the Year three years in a row. Piston was acquired in 2015 and John was named the iMedia Agency Marketer of the Year in 2016. John was also the CMO of Ando, one of the first sustainable fintech companies and was awarded a Fast Company Innovation by Design Finalist Award. He also founded SkillPower which is a whole-person health platform that works with both the Air Force and Army.


Throughout his career, John has worked with clients including Ray-Ban, Skullcandy, AARP, Stanford Healthcare, Thermofisher Scientific, Oakley, SunglassHut, HugoBoss, Taylor Guitars,, Exclusive Resorts, Inspirato, L'Oreal, AAA, Rubio's, TrueCar, The General Insurance, WarnerBros., Intuit, The San Diego Chargers, Paso Robles Wine Council, Merrill Lynch, Yakult, State Farm, Volcom, Stance, Chico's, The American Heart Association, BigBrothers BigSisters, AutismSpeaks, Heifer International as well as multiple start-ups, hyper-growth companies and more.


Kristy Drutman

Otherwise known as “Browngirl Green” is a speaker, consultant, media producer, and environmental educator passionate about working at the intersections between media, diversity, and environmentalism. As a young entrepreneur, Kristy has educated hundreds of thousands of people across the globe about modern-day environmental issues through speeches and media content as well as facilitates workshops centered around environmental media and storytelling in cities across the United States. She is an active content creator and influencer across multiple channels.


Tashi Stricker

A multi-disciplinary designer, brand strategist, and writer specializing in brand storytelling and art direction. She helps brands define their position, and tell their best stories through design and messaging across every channel and brand touchpoint. She has over 15 years of experience designing and writing for brands including Vans, Adidas, BLUEVIEW, Nike, Starch Creative, Sass + Bide, Skechers, DQM New York, Surface to Air, and Burton. She has been a creative consultant to Vans for over 10 years and is the Co-Founder and Creative Director of The General by Vans concept stores in New York.

Sean Kinghorn

A solutions-oriented leader with over 20 years of experience in sustainability planning, sustainable business practices, green building consulting, and environmental planning. Sean spent seven years as the Global Sustainability lead at Intuit and recently served as the Director of Environmental Sustainability at ServiceNow. Sean is an expert on reducing greenhouse gases, carbon offset credits, and developing partnerships between sustainable companies to achieve greater results.

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