• Who We Are

    We're on a mission to the make the world a better place through improv.


    Improv4 uses improv and comedy techniques to train individuals, entrepreneurs, teams, and companies. Using improvisation and comedy techniques our workshops build all sorts of important business and life skills, specifically communication, trust, confidence, confidence, resilience, problem-solving, public speaking, storytelling, thinking on your feet, falling with grace, all while having fun and laughing in a few energizing hours.


    Our work has been featured in Forbes, and we have led workshops for the smallest of startups, some of the top accelerators in the world, Fortune 500 companies, and leaders.

    Mary Lemmer

    Founder & Improviser

    Mary Lemmer is an entrepreneur, improviser, comedian, writer, philanthropist, and amateur chef. Mary has helped dozens of companies, including Plenty, Ozlo (Acquired by Facebook), True Link Financial (YC S13) and Fixed (YC S14, Acquired by Lawgix), and other ventures with growth, marketing, business development, fundraising strategy, and culture. She was an Entrepreneur in Residence at R/GA Ventures, focusing on investments in companies creating innovative experiences and technologies at the intersection of digital and physical commerce. She once was a Director at SoFi, a multibillion-dollar online lender, where she led a marketing team, built out the business development team, and ran SoFi’s entrepreneur program and investments in startups. Prior to SoFi, she worked at RPM Ventures, an early stage venture capital firm, concentrating on investments in online marketplaces, e-commerce, and automotive IT.


    Mary graduated from the University of Michigan with a Bachelor's in Business Administration, Minor in Environmental Science, and Certificate in Entrepreneurship from the College of Engineering. She studied improv at The Second City in Chicago, People’s Improv Theatre in NYC, EndGames Improv and Bay Area Theatre Sports in San Francisco, and other workshops through The Groundlings, Vancouver Improv Festival, among others. She has performed improv and comedy all over the country, including at Gilda Radner’s Laughfest, The Punch Line in San Francisco, and the Lady Laughs Comedy Festival.

    Read more about Mary and her improv story here.


    Debra Schifrin


    Debra Schifrin has been designing and leading improv-based corporate training sessions for businesses and universities for over 10 years. Currently, at Stanford University’s Graduate School of Business, she teaches an improv-based management course in the MBA curriculum. She also designs and writes academic curriculum material for the overall MBA program. In her early career, she was a reporter, producer and director for National Public Radio in Washington D.C. She performs improv theater in San Francisco, including in musical and science-fiction genres (usually not at the same time), and she has trained in Chicago, Washington DC, and San Francisco. She has an MBA from Harvard Business School and bachelor’s degree from U.C. Berkeley.


    Read more about Debra here.

  • Our Trainings

    Every workshop is unique and customized to your needs.

    These are some of our most popular trainings.

    Kickoff/Group Sessions

    Energizing & engaging, these sessions focus on building foundational improv leadership knowledge in impactful & interactive training. Great for kicking off team trainings, offsites, conferences, or other group events.

    Weekly Class

    These 3-hour weekly sessions focus on applying improv to developing important leadership, communication, & team effectiveness skills. Great for an employee perk, team building, & leadership training.

    Monthly Training

    Designed to cover leadership principles, building and improving core leadership, communication, & team effectiveness skills. Great for developing talent, an employee perk, leadership training, & executive training.

    Flash Improv Jam!

    A quick jam to help people sharpen leadership skills, improve communication, build trust, become a better listener, problem-solver, inspire confidence, and more, all while having a blast and laughing a lot! Great for happy hours or an energizing Friday lunch session at the office.

    Custom Trainings

    We can design custom trainings for your needs. In the past, we've done improv 4 all sorts of organizations and situations. Contact us and we can put together a training just for you.

  • Core Skills

    Our trainings focus on developing these skills:


    Decision Making

    Emotional Intelligence

    Handling Uncertainty

    Creativity, Empathy


    Active Listening


    Difficult Conversations

    Team Effectiveness


    Team Building

    Quick Thinking

  • Our Clients

    We have done improv trainings for individuals, the smallest of startups, some of the top accelerators in the world, Fortune 500 companies, and top universities

  • Improv 4 ENTREPRENEURS at 500 Startups

    We led an improv session for companies invested in by

    500 Startups, a leading global venture capital seed fund and startup accelerator.

    Improv 4 ENTREPRENEURS at the University of Michigan

    With hundreds of University of Michigan students we led an Improv 4 Entrepreneurs session with the Center for Entrepreneurship at the College of Engineering. This session was one of the most popular sessions all semester!

    Improv 4 ENTREPRENEURS at Fordham University

    We led an improv session for entrepreneurs in the Fordham Foundry program.

    Improv 4 TEAM BUILDING at Silicon Valley Bank

    We led an improv session for a team at SVB, creating a space for self expression and team bonding.

  • Testimonials

    People love us.

    Your workshop was honestly one of the best things I ever did for myself while living in San Francisco

    - Rebecca Chaika, Product Designer, SoulCycle

    Mary ran an amazing Improv session for our whole company as part of an offsite, engineers, sales and support and the team loved it.

    Whilst being hilariously funny, it also forced us to operate outside our comfort zones, and get us to know each other's personalities far better. We operate a distributed team across four countries, so this was a great way to bring everyone closer, make us think on our feet and have a bit of fun!

    — Simon Turner, President & Co-Founder of Myagi

    Want to finesse your pitch and present with clarity and confidence? Then take Mary’s I4E. Grounded in the art of improv, I4E ensures participants stretch and pivot their pitches, seize opportunities to present with confidence, while all the while, having fun.

    — Kelly Hoey, Author of Build Your Dream Network, podcast guest host & speaker, Co-Founder of the Women In Mobile Accelerator

    For the second year in a row, Mary's Improv4 Workshop was a huge success at our accelerator program. Our founders and interns alike loved the captivating session. We laughed, fell down, and grew more comfortable with each other and public speaking. I would recommend her workshop for startups, corporations and everyone in between. It facilitates team cohesive in a way that really works while also providing hours full of laughter.

    — Alison Todak, Managing Director of Cahoots and former Director at Desai Accelerator at the University of Michigan

    Mary Lemmer's improv workshop is the ideal environment to learn how to communicate more effectively. Imagine becoming a better communicator and learning the nuances of what it takes to be a better communicator in a fun and entertaining environment. If you want to become a top-notch communicator, you have to take this workshop.

    — Arun Dawit, Co-Founder of Urban Logiq (Batch 20 at 500 Startups)

    Mary has successfully translated Improv Theater to a business context … it’s fun, it’s funny, it’s compelling and everyone she teaches comes away as a better, more confident, more focused presenter.

    — Rich Sheridan, Founder & CEO, Menlo Innovations, and Author of Joy, Inc

    Improv4 was an absolute blast! I came in not sure exactly what to expect, and left her fantastic workshop with personalized feedback and a better pitch for my company. Anyone would benefit from an Improv4 workshop: founders, startup employees, corporate professionals. I'd join another class facilitated by Mary in a heartbeat!

    — Leslie Zaikis, Marketing and Strategy Consultant

    Read more testimonials and recommendations online here.

  • Contact Us

    Contact us to book a workshop or simply say "hi".

    Just say yes, and...

  • Check out some of the improv workshops we've done...