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Executive Management

Biography PhotoNathaniel A. Davis
Chairman and Chief Executive Officer

Nate Davis, Chairman and CEO of K¹², is a seasoned leader of transformational telecommunications, media and software development companies, with a record of improving operations, launching innovative new products and strengthening relationships with legislative and regulatory authorities.

Mr. Davis, joined the K¹² Board of Directors in 2009, was named Chairman of the Board in June 2012, assumed the role of Executive Chairman in January 2013 and was named Chairman and CEO in... 

Biography PhotoTimothy L. Murray
President and COO

Timothy L. Murray joined K¹² in April 2012. He is an accomplished executive with decades of experience working for successful public and private companies. Most recently, Mr. Murray served as Chief Executive Officer of Pulsepoint, Inc., a digital media technology company formed by the merger of ContextWeb, a top-rated advertising exchange, and Datran Media. He joined ContextWeb in March of 2010 and served as the company's CEO.

Prior to ContextWeb, Mr. Murray was Chief Opera... 

Biography PhotoJames Rhyu
Executive Vice President and Chief Financial Officer

James Rhyu, Executive Vice President and Chief Financial Officer, joined K¹² in June 2013. Mr. Rhyu has more than 20 years of financial management experience in various global industries.

Prior to joining K¹², Mr. Rhyu served as Chief Financial Officer and Chief Administrative Officer of, a subsidiary of publicly traded IAC/InterActiveCorp. In those roles, he was responsible for overseeing a broad range of functions, including human resources, legal, information t... 

Biography PhotoHoward  D.  Polsky
Executive Vice President, General Counsel and Secretary

Howard D. Polsky, Executive Vice President, General Counsel and Secretary, joined K¹² in 2004. Mr. Polsky has a unique combination of legal and public policy experience.

Prior to joining K¹², Mr. Polsky served as Vice President and General Counsel of Lockheed Martin Global Telecommunications, where he managed a wide range of legal matters including antitrust, telecommunications, employment, commercial contracts and transactions, litigation management, mergers and acquisition... 

Biography PhotoAllison Cleveland
Executive Vice President of School Management and Services

Allison Cleveland, Executive Vice President of School Management and Services, joined K¹² in October 2002.

During her time at K¹², Ms. Cleveland has been instrumental in building the managed public school line of business. Most recently, she served as the Senior Vice President of School Services, overseeing academic and operational services in the managed public schools. Prior to that, Ms. Cleveland was the Regional Vice President of the Southern Region, responsible for scho... 

Biography PhotoChuck Sullivan
Executive Vice President and Chief Marketing Officer

Chuck Sullivan, Executive Vice President and Chief Marketing Officer, oversees the company's Integrated Marketing Strategy, Customer Acquisition, Analytics, Business Line & Field Marketing, Institutional Marketing and Market Research teams. Mr. Sullivan joined K¹² in 2013.

Prior to K¹², Mr. Sullivan was a principal at CCS Advisory Services LLC, a marketing strategy firm that provides advice to Fortune 500, private equity, and venture-backed clients on branding strategy, omni-channel... 

Biography PhotoDavid Cumberbatch
Executive Vice President and Chief Strategy Officer

David Cumberbatch joined K¹² in 2014, as Executive Vice President and Chief Strategy Officer. In this role his is responsible for collaborating and executing on K¹² ’s long-term corporate strategy as well as partnering to identify partnerships and other ventures that support our key objectives. Finally, he manages our International Operations in the UK and further development of our International interests.

David has a diverse business development, product, and brand management ... 

Biography PhotoLynda Cloud
Executive Vice President, Products

Lynda Cloud, Executive Vice President, Products, joined K¹² in September 2014. As the head of K¹²'s Curriculum and Products organization, she oversees the development and delivery of all program content and customer-facing technologies, and drives the product strategy and results across all areas of the business.

Prior to joining K¹², she was with Pearson Publishing for more than 20 years, where she held senior leadership positions in Product Development, Marketing, and Product Mana... 

Biography PhotoJoe Zarella
Executive Vice President of Business Operations

Joe Zarella, Executive Vice President of Business Operations, has more than 20 years of successful Customer Service, Sales & Marketing Operations, and Information Technology management experience.

Prior to joining K¹² in 2014, Mr. Zarella served as Chief Service Officer for SiriusXM Satellite Radio and its predecessor company, XM Satellite Radio, since 2006. In this role, he lead the company’s Sales, Marketing, Customer Service and Retention Operations, where he successfully g... 

Biography PhotoJames Donley
Senior Vice President and Chief Information Officer

James Donley, Senior Vice President and Chief Information Officer joined K¹² in July 2012.

From 2006 until his present role, Mr. Donley served as CIO at Ciena Corp, a telecommunication solutions provider, a role which included managing the acquisition of the Metro Ethernet division of Nortel. Prior to his Ciena position, Mr. Donley was CIO beginning in 2000 at Acterna (now JDSU), a test and measurement solutions provider in the telecommunication industry.

Mr. Don... 

Biography PhotoBryan  W.  Flood
Senior Vice President, Public Affairs

Bryan W. Flood, Senior Vice President, Public Affairs, joined K¹² in 2002.  Mr. Flood previously served as a public affairs strategist, consultant, and spokesman for corporations, interest groups, and senatorial, gubernatorial, and presidential campaigns.

As Vice President at the MPGH Agency, a Virginia-based public affairs consulting firm, he advised clients ranging from high tech start-ups to Fortune 500 firms, including several leading education companies. Mr. Flood help... 

Biography PhotoMargaret (Margie) Jorgensen
Senior Vice President and Chief Academic Officer

Margaret Jorgensen, PhD., Chief Academic Officer, an expert in the use of educational assessments as a powerful instructional tool, joined K¹² in February 2013 as Chief Academic Officer (CAO). As CAO, Dr. Jorgensen is helping lead K¹²'s ongoing efforts to develop state of the art curriculum, technology, learning systems and teacher support; to improve performance for all students, including advanced learners but especially among the growing population of academically at-risk students in... 

Biography PhotoValerie  Maddy
Senior Vice President, Human Resources

Valerie Maddy, Senior Vice President, Human Resources at K12 Inc., brings more than 20 years of global leadership and innovation in the full range of human resources disciplines. At K¹², Ms. Maddy is leading the development and implementation of new systems, processes, policies and programs aimed at maximizing every employee's contribution to student academic success. As part of that effort, she is working with business teams to drive alignment, clarity and competitive advantage across ... 

Biography PhotoPeter  Stewart
Senior Vice President of School Development

Peter Stewart, Senior Vice President of School Development, works with parents, teachers, community groups, school districts, school boards, departments of education, and policy makers across the United States and internationally to start new high-tech schools that use the K¹² academic program.

In the past seven years Mr. Stewart has helped develop large-scale, public e-learning programs in sixteen states that currently serve over 100,000 courses annually.

Prior ...