Mark Shlanta

CEO

Mark Shlanta leads SDN Communications as its Chief Executive Officer, a position he has held since 2000.

Joe Galinanes

Vice President of Managed Services

As the Vice President of SDN's Managed Services, Joe Galinanes oversees the day-to-day operations of the division and is responsiblefor setting and implementing SDN’s path towards managed/cloud services. 

Amy Preator

Director of Human Resources

As Director of Human Resources, Amy Preator manages employee benefits and compensation, maintains consistency among policies and procedures, and oversees recruitment, hiring and employee development and training. 

Vernon Brown

Director of Marketing & Community Relations

Vernon Brown manages SDN Communications’ brand through the marketing, sponsorships, events, special projects and community relations.

Mitch Elfstrand

Vice President of Engineering and Operations

As Vice President of Network Engineering and Operations, Mitch Elfstrand oversees the day-to-day development and growth of SDN's network, Network Operations, Outside Plant Engineering and Land and Buildings.

Mitch was recently recognized as a Patriotic Employer by the Employer Support of the National Guard and Reserve (ESGR) for supporting an SDN Operations Engineer's service with the Iowa Air National Guard.

Bill Heaston

Vice President of Legal and Regulatory

As the Vice President of Legal and Regulatory, Bill provides advice and support to SDN for regulatory, legal and significant customer issues.

Michael Kedik

Vice President of Information Technology, Application and Product Development

Michael Kedik has 20 years experience in the IT and Telecomunications industries.

Nick Kortan

Vice President of Corporate Operations

As SDN's Vice President of Corporate Operations (CFO), Nick directs and oversees all aspects of the finance, accounting and credit functions.

Dennis Cromwell

Interim Head of Sales

Dennis Cromwell has been a member of the SDN Team since 2006. 

JJ Anderson

Wholesale Carrier Relations

J.J. Anderson works with wholesale carrier relations across the nation. He specifically works with carriers and telco's (like SDN's Member Companies), to help connect the Upper Great Plains to SDN's internet and transport methods. 

Melanie Sage

Account Network Executive - Sioux Falls, Sioux City, Yankton

Melanie Sage is a Network Account Executive with more than five years in telecommunications experience. She is a network consultant who specializes in MPLS, (connecting remote offices), and offers T1 direct data lines of internet connection for high-speed bandwidth.

Lynne Norton

Broadband Connectivity Sales - Sioux Falls, Madison, SW Minnesota, Aberdeen

As a Senior Account Relations Executive for the most reliable ISP in the region, Lynne Norton likes finding high-speed fiber optic solutions for customers.

Ryan Punt

Wholesale Carrier Relations

Ryan Punt, who has been in the business since 1999, sells wholesale/carrier services to companies across the nation. He and JJ Anderson are working together to assist you on any wholesale account needs. 

Dan Gabrielson

Network Account Executive - West River, Rapid City, Pierre

Dan joins SDN as a Network Account Executive in the Rapid City office. 

He enjoys working with customers to find solutions to their business Internet needs and connecting multiple offices with WAN/MPLS technology.

Jeff Lewallen

Structured Cabling Manager

Jeff Lewallen says many businesses consider their telecom infrastructure to be one of the most crucial aspects of their business.

Dean Putnam

Sales Development Manager

Dean Putnam has been with SDN Communications for 11 years and helps clients build large communications networks that include computers and telephony.

Mark Olson

Phone Systems and Network Equipment Sales

Mark Olson is a senior account executive with more than ten years consulting experience within the technical field. He loves the outdoors, especially hunting and boating in the summer, and uses his musical talents to play the drums for his church's worship team.

Dave Fehrs

Phone Systems and Network Equipment Sales

Dave specializes in selling phone systems, networking equipment, network configuration solutions, servers and data storage, and information security solutions.