2018-2019 Executive Board

Past President

Hollie Costello serves as the Director of Public Relations and Marketing for Make-A-Wish® Arizona, the state chapter of the 501(c)(3) international wish granting organization, Make-A-Wish®. With more than 16 years of experience in marketing, public relations and journalism, she has worked in multiple industries including media, travel, technology and health care but she is happiest in her new role helping to grant wishes for children with life-threatening medical conditions. She previously served on the IABC Phoenix Board from 2005 to 2008 in the role of VP of Professional Development and Director of the Copper Quills awards. A journalism major from University of Arizona, she is a proud Wildcat and even living in Tempe for the past 16 years cannot break her. In fact, she is a graduate of the Tempe Leadership program and acted as President of the Board of Directors for Tempe Leadership in 2014-2015, guiding a 24- person volunteer board in support of the adult and youth leadership programs. Outside of work, she loves to travel to see new places or head home to St. Louis to spend time with her family.


Sarah Rockey is a skillful public relations and social media strategist with extensive knowledge of the trends, technology, and influencers needed for making connections across both the traditional and digital worlds. She has experience in an eclectic range of industries; from developing marketing campaigns for the performing arts and events industry, to building brands and bringing awareness to companies and products across B2B and B2C clients in a fast-paced agency environment. From there, she took her skills in-house, translating complex technology concepts into integrated digital strategies to drive recognition, relevance and resonance on a global scale. She is currently the corporate public relations and social media manager at ON Semiconductor, where she was recently honored with the 2016 Employee of the Year award. Her second year on the IABC Phoenix Board, Sarah will be responsible for identifying and executing innovative ways to reach, engage, and connect Valley communicators as well as be responsible for the organization’s digital presence. Sarah is an avid runner – from where all her bright ideas originate and which provides great training for chasing her toddler.

Executive Vice President

Jennifer has provided strategic public relations and marketing communications council to b2b and b2c clients for over 24 years. With a diverse background that includes both client and agency-side experience, Jennifer has a proven track record for developing successful initiatives that yield measurable results.

Partnering with clients to shepherd campaigns that meet and exceed objectives while capturing the attention of media and analysts, Jennifer’s outstanding rapport with top journalists and producers has helped her earn unprecedented coverage for her clients.

Providing global public relations, investor relations and branding consultation, Jennifer specializes in integrated communications programs for the financial, professional services, health, technology and business services sectors. Over the years, Jennifer has been privileged to help a variety of companies with their communications initiatives, including 4Cite, GovDelivery, Jump Technologies, Lawson (Infor), MedHub, PeopleNet (Trimble), Robert Half, Rollerblade and SPS Commerce.

Jennifer received her Bachelor’s degree in International Business, Economics and German from the University of St. Catherine in St. Paul, Minnesota.

VP of Professional Development

Jessica Nirk is Sr. Internal Communications Specialist at Blue Cross Blue Shield of Arizona. In her more than 11 years at Blue, she has transformed the employee communications program and continues to cultivate the employee experience. Her passion is creative problem solving and bringing the strategic and creative together to develop behavior change and increase employee engagement. Jessica is a wife and working momma of three boys and in her spare time can be found roaming Target with Starbucks in hand.

VP of Communications

Jean Christofferson is the director of marketing for Catholic Charities Community Services, a nonprofit charity, which helps more than 14,000 individuals throughout seven counties in central and northern Arizona each year.  She leads a small team to create, manage and track all marketing, communications and public relations campaigns and is responsible for the overall marketing and communication strategy and execution for all 22 programs throughout the state.

Prior to her work at Catholic Charities, she was managing editor for WorldatWork, a nonprofit association for HR professionals, where she led a complete print and electronic redesign of its award-winning member magazine as well as managed a team of writers and editors responsible for all editorial content.

She is the volunteer communications specialist for Saving Paws Rescue AZ, a local nonprofit dog rescue, which has saved more than 1,200 dogs from an uncertain fate in the last five years.

She holds a bachelor’s degree in Journalism from the University of Missouri – Columbia and is originally from the St. Louis, Mo. area. She moved to Phoenix in 1995 and lives with her husband, two teenage sons and three dogs and a cat.

Vice President, Finance & Secretary

Shelley Nelson, MBA, brings more than 15 years of professional experience in strategic marketing planning, community involvement and marketing communications for nonprofits, small businesses and Fortune 500 companies. Her passion is seeing people experience a brighter future than they may have imagined. Shelley loves creating marketing and communications plans that bring new and established audiences closer to the organization’s mission. She uses the power of storytelling to drive awareness and response as well as double donations, move products and sell out events. In her free time, Shelley enjoys teaching in her role as Adjunct Faculty, serving as a Children’s Leader in Bible Study Fellowship, decorating and swimming.