Nice to meet you.

Our Focus

Like any mission-driven organization, we’re guided by a set of principles and beliefs. We keep ours close in mind when we create new technologies and craft our client experiences.

Crafting a personalized & proven approach to learning

  • Matching every student to an appropriate certified teacher
  • Fostering trust with a focus on relationships
  • Creating customized, research-based learning plans

Focusing on empowerment & confidence

  • Nurturing the Whole Child: academic and emotional
  • Helping students, parents, and teachers to embrace challenge
  • Celebrating shared values about education

Creating the tools for an ever-improving experience

  • Designing reports for parents that increase transparency
  • Developing resources for teachers that make their jobs easier
  • Building validated networks for doctors & schools to support families

Our Team


Braintrust’s founders bring a combination of educational bonafides, demonstrated business acumen, and the laser-focused parental insights that come from raising 5 kids between them. Mara and Jen empathize with parents and teachers alike, and have the expertise to cleverly solve the most pressing problems facing educators and the families they support.

Mara Koffmann

Co-Founder and CEO

Mara is a problem solver. She’s spent her entire professional career helping students and families understand and overcome their most difficult learning obstacles. No matter how seemingly intractable the problem, Mara relishes rolling up her sleeves and finding effective – and fun! – solutions that will help students achieve their full potential.

Jen Mendelsohn

Co-Founder and CBO

Jen loves nothing more than quarterbacking a business opportunity and spent 15+ years selling enterprise tech before Braintrust. Her professional development comes from cultivating relationships and bringing opportunities to fruition. Jen’s competitive spirit borders on the unhealthy, fortunately there is a charm to her relentlessness.


Our team members are seasoned, customer-focused business operators. But, more important than our expertise is our empathy — our team members are parents, educators, and dedicated individuals who wake up each day thinking about how to improve the tutoring experience and build a better way.

Albert Nahmad

Chief Financial Officer

Albert is a finance junkie. He spent a decade in CA with the Technology M&A group at Credit Suisse, helping many of the world’s largest tech companies execute tons of merger transactions. Prior to joining Braintrust, he was CFO of Nesa Solutions, an IoT software enterprise. He loves simplifying complexity for the benefit of everyone!

Jon Small

Chief Revenue Officer

Jon is a seasoned sales veteran with 15+ years of experience launching, operating and scaling to IPO/exit numerous multimillion-dollar companies through senior leadership positions at leading edtech brands such as Veritas Prep, Revolution Prep and Varsity Tutors. He’s committed to taking on the most pressing challenges in K-12 education.

Eric Hoffman

VP, Sales & Marketing

Eric, a teacher turned sales pro, brings considerable experience in product strategy, sales and marketing that is crucial to Braintrust’s success. He previously held senior sales positions at notable edtech companies including Revolution Prep, leading sales teams that have amassed millions of dollars in annual recurring revenue.

Amy Ambatielos

Director of Educational Partnerships

Amy is an educator at heart. Before booking HGTV shows or producing CNN packages, she was a classroom teacher. Teaching through the pandemic, Amy became acutely aware of the overall gaps in students’ learning. She joined Braintrust to help close those gaps in schools and districts where the loss is most prevalent and the need for support is greatest.

Gabrielle Fraenkel​

School Outreach

Gabby considers herself an educational concierge who loves connecting people to powerful resources/ platforms. She brings a wealth of key strategy and operations experience with school districts across the country, including as Special Assistant to Superintendent of Boston Public Schools and Chief of Staff at the NYC DOE in the School Planning and Development Division.

Erica Granda

Academic Success Team Leader

Erica is a data-driven, results-oriented, client-focused professional with experience creating targeted and purposeful growth paths for all types of learners to achieve defined outcomes. She has spent her entire professional career seeking out the best educational practices for students in need. She loves tackling complex problems in order to create streamlined solutions that make everyone’s life easier!

Anja Sherry

Student and Family Engagement Team Leader

Anja is a a skilled connector. She’s followed her calling to support children, weaving webs of educators, childcare professionals, community programs, and families. Anja is a Montessori-trained educator with a diverse teaching background. She loves to find innovative ways to help students and teachers reclaim joy in their teaching and learning. 

Kasandra White

Teacher Recruitment and Success Team Leader

Kasandra is an experienced operator. She’s taught in the classroom, held senior operator roles in various businesses, acted as a lead teacher for a multibillion-dollar educational firm, and helped maintain smooth operations everywhere she’s gone. Kasandra leverages her teacher recruitment efforts honed at VIPKID to help Braintrust identify the best educators.


Our advisors are seasoned experts who provide us critical insights and advice to help us improve our programs, explore new opportunities and accelerate our growth by stimulating robust, high-quality conversation.

Jay Russell


Dr. Russell is Executive Director of The Windward Institute, whose mission is to increase childhood literacy, and a Yale faculty member at the Yale Child Study Center. Previously, Jay served for 13 years as head of The Windward School and for 11 years as superintendent of schools in Hastings-on-Hudson, New York. In 2019, he was named Distinguished Leader in Education by Education Update.

Clyde Williams


Clyde’s more than 30-year career in public service includes work for Presidents Obama and Clinton, the development of successful public-private sector partnerships nationally, and knowledge of federal programs that affect urban and rural communities. He has a passion for implementing change focused on economic empowerment and education.

Dr. Brock Eide


Dr. Eide is a leading expert in the fields of dyslexia and brain-based learning. He and his wife authored the internationally best-selling book The Dyslexic Advantage (2011) as well as The Mislabeled Child (2006); and founded the 501(c)3 non-profit Dyslexic Advantage, one of the world’s largest online dyslexia communities.

Get started with Braintrust today.