A Scrappy Digital Marketing Agency in Detroit for Businesses & Ecommerce

Learn how this highly-motivated, "hustle-harder"
marketing team gets insane results for their clients.

Freakishly Successful Social Media, Google, and Website
Marketing Services


Build a loyal following &
grow your business.


Get found on Google & get
more leads.

revenue growth with internet marketing


Digital marketing & advertising with unimaginable ROI.

“The best marketer I’ve worked with in 22 years of owning my business. . . After being disappointed and ripped off by at least a dozen marketers over the years, I can’t recommend Karma Jack strongly enough.”
– Mike Staff | Mike Staff Productions

Businesses & ecommerce companies gain record breaking revenues without wasted spend.

1000% Confidence You've Never Experienced Marketing Like This

Our Promise To You

  1. We ALWAYS do the right thing. 
  2. We ALWAYS focus on your best interest.
  3. We ALWAYS provide 5-star service. 
  4. We ALWAYS hold our team accountable. 
  5. We ALWAYS provide value.

Our Beginnings

In 2017, Joel Sellentine saw an enormous opportunity for smaller sized businesses to grow their companies quickly and profitably with digital marketing.

His previous endeavors saw massive success because he focused on what matters most; a profitable return on investment. Knowing digital marketing is the way of the future, he founded KARMA jack™ to help businesses successfully grow. 

aaron and Joel


“The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.” – Ralph Waldo Emerson

KARMA jack™ proudly gives back to local Detroit charities, veteran organizations, Universities, families in need. We mentor students and offer pro bono consulting work to struggling Detroit businesses. 

digital marketing agency in Detroit Michigan

Our Team

KARMA jack™ is a conversion-focused, results oriented company with virtual model to keep costs low and 18 experts on staff to keep your company growth high.

Each member on our team is highly skilled in their respective areas which gives your company an incredibly diverse group of super experts at a fraction of the cost of one full-time employee. 

“I’ve attached another star because 5 stars aren’t enough to convey the excellence of Karma Jack.  (1) Knowledge, (2) integrity, (3) patience, (4) responsiveness, (5) dependability.”
– Dr. David Feingold

KARMA jack™ is Different

Halley Karas, COO, comes from 5-star service hotel leadership. Her ability to execute on strategies while creating an unbelievable customer (you) experience far exceeds any type of service a “marketing company” offers. 

Joel Sellentine comes from a business background with an innate ability to see a clear path to growth. He was fed up with bad digital marketing companies that bragged about “impressions” but didn’t get results. So he built a the company not from a marketing agency owner’s perspective but a business owner’s perspective. . . If it doesn’t drive revenue, it doesn’t make sense. 

KARMA jack™ is a Digital Marketing Agency built on solid principles of service, quality and results. 

When you reach out to us, you will not get a sales pitch. 

You WILL get rock-solid advice on how to grow your business. 

You WILL get a clear plan that you can execute yourself, hire someone else, or hire us. We just want you to be successful and believe in giving. 

We only share with you services that you might need. Most owners are surprised when we tell them, “hey man, you only need to do these 3 things”. 

We love to help and willingly provide amazing digital marketing advice to all business that request information. But we don’t work with every company. Sorry!

Each business is carefully vetted to ensure we see a high return on their investment. 

If you’re looking for a markeing agency that pumps out generic garbage, you’re looking at the wrong company.

The KARMA jack team will create a uniquely designed marketing strategy just for your business.

Every business is unique to its own. Your marketing must meet your vision. 

Our exclusive marketing system blends hyper-targeting with social media, landing pages that convert, and remarketing to provide structure that provides long-term, sustainable growth. Your 5-star, full-service, Michigan based marketers will keep you ahead of your competition while you save money from wasted costs.

  1. Hyper-targeting
  2. Demographics & behavior
  3. Lookalike
  4. Multi-platform
  5. Retargeting
  6. High intent nurturing
  7. Conversions

“Karma Jack has gone far and above our expectations. Their team is attentive, responsive, and most importantly dedicated to the success of our marketing objectives.
– Tim Hampton | GameDay Signs

A Digital Marketing Agency You Can Trust

You deserve a marketing company that has your best interest in mind.

KARMA jack Digital Marketing Awards

How Targeted Marketing Gets You More Sales & Brand Awareness

Karma Jack’s expertise in the digital marketing space is the best I have found. I would recommend them to any business that wants to see a return on investment for sales growth.
Marilyn T. | Trent Creative

Your Plan to Digital Marketing Success


Schedule an Appointment

A KARMA jack expert will review your digital presence and discuss how you can get more leads in your industry.



You will receive a customized proposal designed specifically for your company and industry. You’ll love our pricing.



Agree to work with KARMA jack and we will start by creating a detailed custom plan designed with all of your goals in mind. Then we execute that plan to success.