Founded in 2010, the Presidio Graduate School Alumni Association (PGSAA) is led by an elected board of alumni Directors and serves to engage, connect and celebrate Presidio Graduate School alumni/ae. In 2016 we acquired Pinchot University, formerly Bainbridge Graduate Institute (BGI) and have increased our numbers to over 1,600.

The PGSAA board works in close partnership with members of the administration to support the mission and purpose of the association. While most members are in the Pacific Northwest and Northern and Southern California, PGSAA members can be found throughout the United States and abroad.

The association helps to develop opportunities for dialogue between alumni and administration, supports development and fundraising, and engages alumni across programs to support the mission of the school.

We are passionate people who have founded mission-driven companies and hold sustainability leadership positions at organizations across the United States and abroad including companies you’ve heard of such as Facebook, Google, PG&E, LinkedIn. We are applying their sustainability education in areas such as urban planning, clean technology,  renewable and clean energy, corporate social responsibility, carbon markets, food, fashion, transportation and impact investing.

We are innovators and thought leaders developing transformative solutions to business and societal needs. We are accomplished professionals and professors who now share the sustainability education we gained at Presidio Graduate School to influence the future of sustainable management. Contact us!


The purpose of the Association is to support the development and growth of PGS and promote fellowship and social activity among alumni. The Association helps to develop opportunities for dialogue between alumni and administration, supports development and fundraising, and engages alumni across programs to support the mission of the school.


Membership in the PGSAA is free and automatic for all graduates of PGS programs. Benefits include:

  • Lifetime access to PGS Alumni Career Resources
  • Membership on the PGS alumni website and directory
  • Lifetime access to cutting edge sustainability practices with access to audit MBA and MPA degree courses at deep discounts as well as special Alumni discounts on Certificates, Short Courses, and Intensives
  • Invitation to free and discounted events such as monthly Community Events, the Presidio Presents Speaker Series, and other PGS-sponsored events such as TEDxPresidio, Meeting of the Minds, etc.
  • Invitations to alumni social activities such as monthly alumni happy hours, alumni talent show, alumni picnics, meet ups, hack-a-thons, and more
  • Access to the Anderson Circle Advisor Mentors
  • Invitation to Free Annual Alumni Homecoming Weekend
  • Invitations to special Alumni Association Speaker Series
  • Subscription to the Alumni Newsletter and other publications
  • Discounted access to audit PGS classes. Presidio Graduate School alumni also have lifetime access to MPA and MBA degree courses as well as master classes, speaker series and special events that keep them informed about the latest practices in sustainable management.

Meet the Members of the Alumni Association

Martina Doleshal, MBA C13

Strategy and innovation are her passion, especially in healthcare. Martina helps biotech and healthcare companies to qualitatively assess, select, develop and nurture healthcare innovations with the greatest potential. She has helped successfully launch healthcare products into global markets and diverse regulatory environments for startups and companies like Novartis.  She is translating the tools of strategic innovation to the nonprofit world, by organizing, visioning, and planning events to connect diverse experts with local community organizations that are looking for guidance in implementing and scaling their mission.

She holds an MBA in Sustainable Business Management from Presidio Graduate School, and MSc in Biochemistry and Biomedical Engineering from ICT in Prague, Czech Republic.

Paula Escuadra, MBA C15 | MPA PA3

Paula Escuadra serves as Head of Content Partnerships for Collective Shift, a 501c3 nonprofit organization striving to redesign learning for the 21st century. She has a vested interest in using game-based learning and emergent technologies to empower and inspire 21st-century youth to become resilient systems thinkers who can save the planet and change the world (ask her about SimCityEDU!). Paula uses her years of experience from the video game industry to redesign conversations and action around local sustainability and global resilience.
Paula is a proud dual degree, holding an MBA and MPA in Sustainable Management from Presidio Graduate School and a BA in Cultural Anthropology from University of California, Berkeley.

Carley Klekas, MBA C17, Community Vibrancy Chair

Carley is a C17 MBA from Presidio Graduate School and the Community Vibrancy Chair on the Presidio Alumni Board. She works applying her passion for sustainable and safe cosmetics as a Marketing Manager for Amyris, an integrated renewable products company who creates sustainable replacements for chemical and petroleum-derived products, including personal care. She has a wide breadth of sustainability and corporate responsibility work including working as a Marketing Fellow for the Natural Resource Defense Council’s Environmental Entrepreneurs (E2) program, an EDF Climate Corps Fellow, a Marketing Consultant for start-ups in the Bay Area and a Brand Manager for a cosmetics company. Her MBA projects include a greenhouse gas emission analysis for Wells Fargo, marketing for the Plastic Disclosure Project, and the development of a sustainable men’s deodorant brand, Wild Arrow. Carley received her bachelor’s degree from the University of California, Santa Barbara, where she studied Psychology and Environmental Science. In addition to her international trip to Chile, when she was the Co-Chair of the International Sustainability Club at Presidio, she also spent a semester studying in Spain at the University of Santiago de Compostela. She enjoys hiking, snowboarding, traveling and has an exuberant passion for integrating sustainability into the cosmetics and personal care industry.

Ketan HazariMPA PA3, PGS Integration Chair

Ketan enjoys exploring what different perspectives bring to sustainability. From data science to biology. His passion is fostering development and cooperation between these disparate agents in an information ecosystem. He works as a Sustainability Analyst for ProductBio, a start-up designed to close the “green” information asymmetry gap in organizational procurement. He has spent time working in software QA where he learned about freedom and responsibility, and utilizing resources creatively. He hopes to continue instituting change in supply chain sustainability. Ketan is most happy when camping and least happy when people are hurt.

Ketan holds a MPA in Sustainable Management from Presidio Graduate School and a BA in Economics from the University of California at Davis.

Spike LomibaoMBA C15, Treasurer

Spike Lomibao owns a graphic design consultancy established in 1991, dedicated to collaboration with mission-driven organizations and companies that value making positive change in the world. It’s his goal to help them express their soul and purpose—authentically and memorably. His expertise includes marketing strategy and promotions, visual communication, and brand management. He is excited to be serving on his first board of directors and plans to bring a unique creative energy and leadership to the Presidio community. Born in the San Francisco Bay Area, Spike is a graduate of the University of California, Berkeley. He loves to play volleyball and tennis, travel, and cook. An advocate for enjoying life, Spike firmly believes in the power of laughter.

Ema PhelpsMBA/MPA C16, Vice President

Ema Phelps has a background in private sector consulting with proven results in project management, strategic development, and team coaching. With dual MBA and MPA degrees in sustainable management from Presidio Graduate School – and a passion for cross-sector partnerships – she is dedicated to help drive impact. Ema has conducted financial-sector market research and sustainability reporting projects for New Resource Bank, a B Corporation; explored philanthropic impact investing with Mission Investors Exchange; supported economic and workforce development programming with the City and County of San Francisco; and was an inaugural member of the City of Berkeley’s open data team. Ema was also on the board fundraising committee and the curriculum development committee at Presidio Graduate School.

My goal as a PGSAA board member is to strengthen partnerships between PGS, local governments, sustainable businesses, communities, and fellow alumna.

Michelle ReyesMBA C15, President

Michelle Reyes LEED Green Associate, works in project management in Project & Development Services at Cushman & Wakefield, a global commercial real estate firm. She is striving to join her green building background with her passion for personal sustainability. Michelle has a varied work history, with experience in marketing for a transportation planning firm and in operations and database management for a graphic design firm. She has also worked for municipal and state agencies in Northern California.

Michelle holds an MBA in Sustainable Business Management from Presidio Graduate School, and a BA in Urban Studies from San Francisco State University.

Sam Ruben, MBA C17/PA4

Sam Ruben brings a sustainability and innovation focus to everything he does. He is passionate that today’s organizations consider sustainability as a core aspect, not merely as a moral principle but as an avenue towards an improved bottom line and increased brand value. This passion is paired with a deep understanding of the public, nonprofit and private sectors honed through professional experience and his learning as a graduate of the Presidio Graduate School with a Dual MBA/MPA in Sustainable Management to complement his BA in Political Science/Economics from Vassar College.
Professionally Sam’s background is in sustainability, nonprofit management & brand strategy. He has served in roles from strategic re-branding, sustainability coaching, and financial modeling to website redevelopment, online dashboard creation, sustainable building assessments, and everything in between. In addition to this professional experience, during his time at Presidio, Sam worked with the Bay Area Climate Collaborative to develop a marketing plan to encourage fleet managers to buy EVs; helped the City of Berkeley launch its Open Data Portal, including developing focus groups and other community outreach strategies and attention-grabbing infographics; and developed an operations plan for a sustainable seaweed farm for Olazul which has since spun off a for-profit entity to bring the seaweed to market.

The Alumni Association Board Goals are to:

  • Provide professional networking opportunities for alumni across the MBA, MPA, Dual Degree and Executive Certificate programs

  • Deepen collaboration with the school

  • Strengthen connections within the alumni community by hosting meaningful social gatherings

Alumni Stories

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The Power of a Tweet

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Alumna Lyrica McTiernan (C11) Makes The Business Case For Sustainability At Facebook

 Name: Lyrica McTiernan Cohort: C11 Company: Facebook Title: Sustainability Manager Interview by Dany Warman (C19/PA5) I had the opportunity to...