Empowering Connections,

Delivering Results

Your trusted partner for AT&T Retail sales success.

At Tenebris Business Group, we are more than just a sales agency—we are growth partners. With a dedicated team of retail sales professionals, we help individuals and businesses unlock the power of AT&T’s world-class products and services.

Our proven strategies, expert training, and customer-first approach ensure that every interaction leads to stronger connections and measurable results. Whether you’re a customer seeking better service or a business exploring partnership opportunities, we are here to deliver excellence.



Success Stories

Case Study 1: Residential Upgrade Success

A Brooklyn family needed faster internet for remote learning and streaming. We connected them with AT&T Fiber, cutting buffering by 90% and boosting their productivity and entertainment quality.


Case Study 2: Business Growth Partnership

A small retail store switched to AT&T Business wireless with our help, saving 25% in monthly expenses while improving reliability for payment systems and customer service.

  • “Working with Tenebris Business Group has been a game-changer. They set up my business internet and wireless accounts in record time. Their team is professional, knowledgeable, and truly invested in my success.”

    Michael R. – Small Business Owner

  • “I had been struggling to find the right internet plan until I met with Tenebris. They not only got me the best deal but walked me through installation and setup. Their personal touch made all the difference.”

    Samantha P. – Residential Customer

  • “I’ve upgraded my phone multiple times with Tenebris, and every experience has been smooth and easy. They explain everything clearly and never make me feel rushed. I wouldn’t go anywhere else.”

    David L. – Longtime AT&T Customer

Featured Services

  • Wireless Solutions
    We offer AT&T’s full line of wireless plans, including unlimited data, family bundles, and affordable prepaid options. Our team ensures customers are matched with the best plan for their lifestyle and budget, with expert support every step of the way.

  • Device Sales & Upgrades
    From the latest iPhone and Samsung Galaxy models to tablets and wearables, we guide customers in selecting devices that fit their needs. We also manage trade-ins and seamless upgrades, ensuring an easy, hassle-free experience.

  • Internet Services
    We connect households and businesses with AT&T Fiber, delivering lightning-fast, reliable internet. Whether it’s streaming, gaming, or running a business, our experts make setup simple and support ongoing customer satisfaction.

  • TV & Entertainment Packages
    We provide personalized guidance on AT&T’s DIRECTV packages, helping families and businesses choose entertainment options that match their preferences. Our team makes installation and setup smooth and stress-free.

  • Business Solutions
    We help small and medium-sized businesses stay connected with wireless, internet, and communication tools tailored to growth. From multi-line accounts to advanced fiber solutions, we simplify complex offerings to boost efficiency.

  • Customer Support & Training
    Beyond sales, we are dedicated to service. Our team offers onboarding, tutorials, and ongoing assistance, empowering customers to get the most out of their AT&T services and products.

Who We Are, What We Stand For

Tenebris Business Group was founded with one vision: to transform the sales experience by combining AT&T’s world-class offerings with a human touch. Our team is made up of sales professionals, trainers, and customer success experts who believe in building lasting connections. We take pride in our ability to deliver measurable results for both residential and business customers while maintaining our people-first values.

“Top 5 Benefits of Switching to AT&T Fiber”

“Top 5 Benefits of Switching to AT&T Fiber”

“How to Choose the Best AT&T Wireless Plan for Your Family”

“How to Choose the Best AT&T Wireless Plan for Your Family”

“The Future of Retail Sales: Why Personalized Service Still Wins”

“The Future of Retail Sales: Why Personalized Service Still Wins”

Let’s Connect Today