Anna Zawisza - Education and Outreach DirectorAnna Zawisza
Executive Director
Anna has served as the Executive Director of the Alliance for Sustainable Colorado since September 2013. Throughout her career, Anna has worked to further environmental, social, and economic sustainability through projects at the Alliance, making higher education possible for low income students, and engaging in the community to increase transportation options for all. Prior to becoming Executive Director, she was the Programs Director and oversaw the Alliance’s statewide programs. Before joining the Alliance in 2008, Anna spent 12 years helping young people fulfill their dreams of going to college by assisting them with financing their education through grants, federal loans, and private student loans. Anna completed an MBA at Webster University and holds a BS in Management Science from SUNY Geneseo.


Jason Page - Alliance Center DirectorJason Page
Alliance Center Director
Jason oversees all aspects of the Alliance Center to ensure it fulfills its mission as a hub of collaboration, enabling all of its tenants and partners to be more effective. Jason also carries a dual role as the point person for all technology needs; this involves managing the Alliance Center’s shared internet, phone and printing services as well as the Alliance for Sustainable Colorado’s website, database and IT infrastructure. Jason has administered microcredit loan programs for Denver entrepreneurs, explored fair trade and international development first hand in South and Southeast Asia, and assisted his family business in caring for elderly individuals with dementia. He is a firm believer that our society must establish a deeper sense of community and accountability and looks forward to working towards expanding this view across the state. As a Colorado native, Jason loves the beauty and simplicity of the outdoors and welcomes any opportunity to get outside the city limits. He graduated from the University of Colorado at Boulder with a degree in Finance/Economics, and was two courses short of an Information Systems degree.


Tonya Kelly - Development ManagerTonya Kelly
Development Manager
As Development Manager for the Alliance, Tonya is responsible for overseeing the fundraising strategy, including managing the donor development process, foundation relationships, and increasing the donor base. Before joining the Alliance, Tonya was Development Manager at Rocky Mountain Institute where she oversaw the donor relations activity and their planned giving program. She also served as Capital Campaign Assistant at Denver Botanic Gardens working on the $81 million Flourish campaign. Previously, Tonya worked as Development Coordinator for a small grassroots advocacy organization in Lakewood. She is active in the local chapter of the Association of Fundraising Professionals and the Colorado Planned Giving Roundtable. Tonya is a Colorado native who has not only worked in the nonprofit sector for over 16 years, but is also an active volunteer. She is currently Vice President of The Arc of Colorado, sits on the Developmental Disabilities Resource Center’s Family Support Council, and facilitates at the Colorado Department of Education’s PEP Conferences. She holds a B.A. in Cultural Anthropology and German from the University of Denver and a Masters in Nonprofit Management from Regis University.


Janna SixJanna Six
Special Projects Director
Janna currently oversees collaborative efforts to increase literacy about sustainability so that future generations of Coloradans graduate high school understanding how their decisions affect the environment, society and the economy so they can act in a responsible and effective manner. By leveraging relationships with community leaders in all sectors, Janna is expanding the network of partners supporting sustainability education. She’s also bringing young people’s voices to sustainability discussions. Janna has been involved with education about sustainability issues in Colorado for over 20 years. Prior to co-founding the Alliance in 2004, Janna was a consultant to a number of organizations ranging from the Educational Foundation of America to Project Learning Tree, Population Connection, and Sierra Club. Projects ranged from creating educational materials to researching effective nonprofit efforts and speaking to student and adult audiences, including the media. Janna received a Colorado Energy Champion Award from the Colorado Office of Energy Management and Conservation for green building educational materials and has served on the Governor Romer’s Pollution Prevention Advisory Board. Earlier experiences included a teaching assignment in the US Peace Corps in Dominica, West Indies, and teaching middle school reading/ English classes in CO. She holds a MS degree in environmental education from Colorado State University and a BS degree with honors in education from the University of Colorado at Denver.


Linda AbelkisLinda Abelkis
Operations Manager
As Operations Manager, Linda is responsible for the accounting, bookkeeping and human resource functions of the organization. Linda enjoys using her analytical and organizational skills to support the Alliance’s operations and to further its mission. Prior to joining the Alliance for Sustainable Colorado in early 2014, Linda was Administrative Director at an independent Pre-KG through 8th Grade School for eight years which was her entry into the nonprofit sector. She previously worked for health insurance companies and employee benefits consulting firms in Chicago and Denver as a Health Actuary, where she was responsible for projecting future health care costs. Born and raised in Tennessee, Linda earned her BS in Math from Vanderbilt University in Nashville. In her spare time, Linda enjoys travelling, running, knitting and spending time with her husband and three children.


Megan Moore Stribling - Communications ManagerMegan Stribling
Events & Community Engagement Manager
As Events and Communications Manager, Megan is in charge of overseeing all Alliance events such as the Annual Heroes of Sustainability Awards, Speaker’s Series and Monthly Dine-a-logue Luncheon Series. She also assists the Education & Outreach Director on external communication pieces including the quarterly Catalyst newsletter and the monthly Sustainable Business Network newsletter. Megan attended Auburn University in Auburn, Alabama where she earned a degree in Marketing, and served as a member of the College’s Executive Society. Prior to joining the Alliance in January of 2011, Megan worked as an Event Manager for the National Multiple Sclerosis Society, Colorado-Wyoming Chapter where she ran the organization’s largest event – Bike MS, which boasted over 3,000 event participants. She also worked with Kroenke Sports Enterprises and the Colorado Rapids where she assisted in the opening of their brand new, state-of-the-art soccer stadium. In her spare time, Megan takes advantage of everything Colorado has to offer. She enjoys skiing, white water rafting, exploring new restaurants, and watching SEC football.


Kim Hughes - Interactive Media CoordinatorKim Hughes
Communications Coordinator
Kim is responsible for coordinating the social media presence of the Alliance, the graphic design of Alliance collateral, creating videos that document the Alliance’s work, managing and updating content on the website and documenting the Alliance Center Building Transformation project through visual mediums. For her first two years at the Alliance for Sustainable Colorado, she worked as an administrative assistant, responsible for receptionist, office management, assistant and data entry duties. Before joining the Alliance, Kim worked for a nonprofit consulting firm in marketing and event coordination. Immediately after college, she volunteered full-time for The Gathering Place (Denver’s only daytime shelter for at-risk and homeless women and children) through Americorps. There, she was a Program Assistant. Hailing from the Southeast, she graduated from Elon University in North Carolina with a Bachelor of Arts degree in Corporate Communications with an emphasis on Marketing Design.


Zach Owens - Education Program AssistantZach Owens
Programs Strategist
Zach expands the statewide sustainability network, manages the Colorado Sustainability Collaborative Program, and organizes regional and statewide Sustainability Roundtables. He is passionate about interdisciplinary approaches to community, regional, and statewide sustainability initiatives. Zach graduated with a B.S. in Biochemistry from Regis University in 2009. While at Regis, he served as the first Director of Sustainability in student government, where he helped establish bus pass, recycling, and community garden programs on campus. Zach also spent three years working with the Greenpeace Student Network and served as a Days of Action Coordinator on the first Greenpeace Student Board. As a board member, he assisted students at universities across the country with organizing environmental awareness campaigns and events on their campuses. Zach practices and teaches yoga and dabbles with abstract painting in his spare time.


Jannette Lannen - Administrative AssistantJannette Lannen
Alliance Center Coordinator
As the Administrative Assistance, Jannette completes administrative tasks range from data entry, assisting in operations, providing any program/project support, and coordinating meetings. Jannette graduated from Colorado State University in 2012 with a B.A. in Cultural Anthropology, where she focused her studies on socio-cultural impacts. She examined a multitude of cultures through participant observation, which allowed Jannette to stay focused and involved in all projects. Jannette participated in a multitude of Anthropological activities ranging from Archaeological digs in Northern Colorado, first hand self-developed research, and artifact inspection. In her free time, Jannette trains for marathons and enjoys spending her time with friends and family.


Sandy Vanderstoop Sandra Vanderstoep
Project Consultant
Sandra is working as a project consultant focused on the transformation of The Alliance Center building to insure that this flagship building provides the setting for highly effective, collaborative setting that makes a difference in our world. She is inspired by the opportunity to be part of ‘discovering new opportunities ahead of their time’. Her efforts are directed toward developing funding sources that contribute both to the bottom line and establish long-term partnerships for The Alliance Center.

After a career in academia with a Ph.D. in Neurophysiology from the University of Southern California, her entrepreneurial genes kicked in to high gear. Sandy completed an MBA in Marketing and Decision Theory at Rochester Institute of Technology as prelude to a serial entrepreneurial career. The challenges of business start-up and growth provided opportunities to work in small business ownership and management from manufacturing to agricultural products to the food industry. In these diverse setting, she developed passionate, productive teams that worked together to create a special relationship with each other and the clients that they served. Two consistent themes are threaded through a host of experiences—emphasis on the health of our planet and its natural extension to historic renovation. The mission of The Alliance Center provides a unique opportunity for her to continue to pursue those passions in a setting where she can share those goals and outcomes with others.


headshot of Jeff HohenseeJeff Hohensee
Director of Strategic Partnerships
Jeff has worked as a leader in sustainability, education and business for over 35 years. As a teenager, Jeff ran nature programs for the Boy Scouts and worked as a backpacking guide in the Sierras. In his twenties, he worked for Barclays and Fuji Banks in corporate finance, analyzing businesses and streamlining client cash flows. After a five-year stint teaching third grade, Jeff moved to the nonprofit sector where he has worked since 1993. At the Los Angeles nonprofit, TreePeople, Jeff led a team that built service learning programs that inspired over 100,000 teenagers to lead projects to improve the environment in their neighborhoods, and also worked with the California Department of Education to develop a statewide network to coordinate the efforts of over 3,000 environmental education programs. After moving to Colorado, Jeff served as the CEO of Natural Capitalism Solutions, where he built up their corporate consulting practice to serve Fortune 100 companies, mid-sized and small businesses with collective revenues totaling over 3 percent of U.S. GDP. Jeff lives with his wife in a net-zero home in the mountains outside Boulder. He came to the Alliance with a passion for a sustainable future and a long-held desire to have fun working with good people to change the world for the better.