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About Us

Your problems are our problems. We don’t stop until it’s solved.

Tradeshow

We Evaluate, Select
& Implement

Simply put, Sedexis Advisors is like a financial advisor but for business technology. We help organizations make smart, defensible technology decisions when costs have ballooned, options feel overwhelming, or internal teams don’t have the bandwidth to do the heavy lifting. Our role is to help you evaluate, select, and implement the right IT solutions, while staying engaged long after the contract is signed to ensure they continue delivering value.

We work as advisors, not order-takers.

We act as an extension of your team

With experience averaging 27 years in the field, our team has been exposed to every level of the technology decision-making process, which means we understand the technical tradeoffs, business pressures, and financial consequences firsthand. We act as an extension of your team, bringing clarity, unbiased guidance, and speed to complex decisions across cybersecurity, connectivity, cloud, collaboration, managed services, and mobility.

Fully Independent Evaluations

Sedexis Advisors is paid by service providers, not clients. That allows us to deliver our expertise at no cost to you, while remaining fully independent in how we evaluate solutions. If you come in with a vendor or platform in mind, we’ll help pressure-test, with industry leading proprietary tools, whether it truly fits your goals. If it doesn’t, we’ll say so and provide you with vetted alternatives.

What clients value most is our attention and follow-through. We take ownership when challenges arise, move quickly when timing matters, and stay involved as needs change. Many of our clients bring us with them when they move companies. We see that as the clearest proof of trust and we don’t take it lightly.

David Paul
David Paul Principal
David brings 25 years of enterprise experience to Sedexis. After attending Northeastern University, he began his IT career at XO Communications in 1999, later becoming General Manager of Arizona. He also co-founded The Captive Media Group and was part of a successful franchisee group. In 2010, he took on an enterprise leadership role at CenturyLink before founding Sedexis in 2013. Under his leadership, Sedexis is recognized as a trusted IT resource. David and his wife, Kimberly, live in Arizona with their daughters, Sedona and Alexis, whose names inspired the company name.
Jonathan Hartman
Jonathan Hartman Managing Partner
With over 30 years in telecommunications and technology sourcing, Jonathan joined Sedexis Consulting as Managing Partner in 2022. Previously, he spent 11 years as SVP of Sales at PlanetOne, helping partners transition into advanced IT solutions. His leadership contributed to PlanetOne’s national recognition, earning Inc. Magazine’s fastest-growing company honors for eight years. A former co-owner of a high-speed wireless ISP, he also held key roles at XO Communications. Jonathan holds a Business Administration degree from the University of Denver and enjoys cars, travel, wine, and fitness.
Bob Interdonato
Bob Interdonato Principal
Bob joined Sedexis Consulting in January 2024, bringing 25+ years of experience in technology sales and management. He previously spent a decade at Lumen Technologies as GM of the Southwest and later VP of Mid Markets, overseeing a $1.1B revenue portfolio. Before that, he spent 11 years at XO Communications, rising to General Manager. With a long-standing relationship with Sedexis’s leadership, Bob’s expertise in sales and strategy strengthens the companies customer-focused approach. A proud ASU Sun Devil, he lives in Scottsdale with his wife, Brook, and their two college-aged children.
Lisa Ercanbrack
Lisa Ercanbrack Senior Project Manager
Lisa Ercanbrack joins Sedexis Consulting as Senior Project Manager, bringing 20+ years of telecom experience. She began her career in 2004 with Xspedius Communications and has navigated industry shifts through roles at tw telecom, Level 3, CenturyLink, and Lumen. With expertise in client retention, sales support, and project management, Lisa plays a key role in delivering exceptional client service. Outside work, she enjoys puzzles, the outdoors, and traveling with her husband and two children. Her son, Brennan, studies Biomedical Science at UArizona, and her daughter, Alex, is in high school.
Lori Wilson
Lori Wilson Manager, Client Services
Lori joined Sedexis in February 2017 as Account Service Manager, bringing over 20 years of telecom experience. She began her career in 1998 with Frontier Communications and advanced to Provisioning Team Lead, overseeing installations in the Asia Pacific after the Level 3 merger. At Sedexis, Lori and her team manage order installations, carrier escalations, and post-install support. Outside of work, she and her husband are active in the community and enjoy spending time outdoors with family, friends, and their English bulldog, Coco.
Evelyn Parker
Evelyn Parker Project Coordinator
Evelyn joined Sedexis with over 50 years of telecom experience. She began her career in 1969 as a Directory Assistance Operator for Southwestern Bell and later spent two decades at Allegiance Telecom and XO Communications in repair, Service Delivery-Wholesale, and the National Activations Center. As a Project Coordinator at Sedexis, she manages installations and coordinates projects with carriers and vendors. Outside of work, Evelyn volunteers at a local food pantry, is active in her church, and enjoys time with family and friends.
Alyssa Hamlett Calvert
Alyssa Hamlett Calvert Strategic Business Development Manager
Alyssa Hamlett Calvert is a results-driven professional with a strong background in technology solutions and partner engagement. A Cum Laude graduate of the University of Alabama, she honed her analytical skills for a successful tech career.

At Avant Communications, she quickly advanced to Pricing Analyst, excelling in complex pricing and optimizing solutions across UCaaS, Data Center, Internet Transport, SD-WAN, and Security. Alyssa engages with customers and partners to align solutions with their needs, making her a key asset in driving business success and fostering strong industry relationships.

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