IMPACT certified instructors have completed over 150 training hours in full force empowerment self-defense. Our instructors are versed in physical, verbal, and sexual abuse and assault awareness and prevention. We are committed to ending violence by sharing IMPACT's empowerment self-defense classes with as many people as possible.Our classes are team-taught by a "Whistle Instructor" and a "Suited Instructor." The Whistle Instructor demonstrates physical and verbal techniques, facilitates group discussions, models how to fight back against a mock assailant, and coaches students during their practice fights.
The Suited Instructor wears protective gear and plays the role of mock assailant, allowing our students to practice techniques from verbal boundary-setting to full force blows in realistic scenarios.
Admin Staff
Indigo Avisov, Operations Director
Indigo (they/them) is a transformational strategist, mental fitness and leadership coach, and DEI visionary with over 18 years of experience cultivating equitable, purpose-driven cultures. Known for weaving business strategy with human purpose, Indigo has led global transformations across HR systems, C-suite initiatives, and leadership development programs. As a Positive Intelligence Coach, Certified Purpose Guide™, and Somatic Embodiment Coach, they bridge systemic change with personal fulfillment, empowering individuals and organizations to step into their deepest purpose and grow toward their most impactful ways of being. Indigo is also an ISSA Certified Personal Trainer, supporting clients in building strong, healthy lives through intentional movement and strength training.
Jenny Williams, Lead Instructor
I have been a proud member of IMPACT Bay Area since 2003 and currently serve as a lead instructor, dedicated to empowering individuals through practical self‑defense skills and confidence‑building training. My passion for teaching comes from a deep belief in creating safer, stronger communities, and I bring years of experience, patience, and heart to every class I teach. Outside of IMPACT, I recharge by hiking and spending time at the beach with my dog, and I cherish every moment I get with my grandson, who continues to inspire and bring joy to my life.
Nathan Marken, Administrative Manager
Nathan (he/him) brings a diverse administrative background to IMPACT Bay Area, with extensive experience in the fields of arts, nonprofit, & property management, and higher education. Nathan also sings professionally with Dragapella, an internationally-recognized drag a cappella quartet of which Nathan is also a Managing Partner. He is committed to bringing creative solutions to meeting IMPACT Bay Area's mission of empowerment and ending gender-based violence. Nathan is also a supporter of the San Francisco Bicycle Coalition and has served with the Queer Chorus of San Francisco's Board of Directors and is a past-Treasurer. Nathan holds a Masters degree in Music Performance from the San Francisco Conservatory of Music.
