Clue is the #1 doctor-recommended period & cycle tracking app available on iOS, Android, and Apple Watch. Across the globe, more than 10 million active users rely on Clue to help understand their bodies better and keep their data safe and private.

Clue’s mission is for women and people with cycles to make good choices for themselves, and live full lives not in spite of their biology, but in tune with it. Clue was founded in 2012 by a Danish female entrepreneur, Ida Tin, who is convinced that technology will profoundly change the future of family planning.

Health & Wellness

Clue

Co-CEO

Marta Pucci is a Senior Art Director at [Clue](/org/clue). Marta has previously worked as a Graphic Designer for Emeza, Zalando SE, and Eps51 Graphic Design Studio. Marta has also completed an internship as a Graphic Designer for Barfutura.

Marta has always had a passion for Graphic Design. Marta loves exploring different design styles and enjoys finding new ways to communicate messages through their designs. Marta is constantly striving to improve their skills and broaden their knowledge in the field.

Marta Pucci has a Master's Degree in Design and Visual Communications from Politecnico di Milano and a Bachelor's degree in communication design from the same school. Marta also has a degree in Design and Applied Arts from Peter the Great St.Petersburg Polytechnic University.

Marta Pucci works with Greg Ryzhov - CTO, Amanda Shea - Head of Science, and Sarah Ottawa - Head of People. Marta Pucci reports to Audrey Tsang, Co-CEO.

Marta Pucci

Dr. Lynae Brayboy is the current Chief Medical Officer at Clue by Biowink. Prior to this, they were an Assistant Professor at Women and Infants Hospital from 2014-2020, a College of Life Sciences Fellow at the Wissenschaftskolleg Berlin from September 2019-January 2020, and a Frontiers in Reproduction Fellow at the Marine Biological Laboratory from April-June 2013. Dr. Brayboy has also been involved with the Global Consortium for Reproductive Longevity and Equity and was a Rhode Island Innovator Fellowship Finalist in 2012-2013. Lynae completed their residency at Abington Memorial Hospital from 2007-2011.

Lynae Brayboy is a doctor who attended Temple University's Lewis Katz School of Medicine. Lynae earned their undergraduate degree in biology from [Florida Agricultural and Mechanical University](/org/florida-agricultural-and-mechanical-university).

Lynae Brayboy works with Matan Eylon - Director, Engineering, Anna-Lena Bar - General Counsel, and Christian von Hedemann - Head of User Acquisition. Lynae Brayboy reports to Audrey Tsang, Co-CEO.

Lynae Brayboy

Anna Burek is the current Head of Customer Support at [Clue](/org/clue). Anna has previous experience working as the Head of Customer Experience at Polska Akademia Nauk and [Piavita](/org/piavita). Anna is responsible for coaching and supporting the team, as well as setting up the KPI and budgeting for the customer oriented approach.

Anna Burek has a master's degree in Polish Philology/Communication from the University of Wroclaw, a master's degree in Sociology/Journalism from the University of Ljubljana, advanced training in Communication Design from the University of Warsaw, and advanced training in Marketing Strategies in Business Operations from Karriere Tutor. Anna also has training in Crisis Management in Teamwork from Progress Project. Anna is currently pursuing their PhD in Polish Philology/Sociolinguistics at the University of Ostrava and their postgraduate studies in Pedagogics at WSB Schools of Banking in Poland. Finally, they have a master's degree in Philosophy/Migration Studies from [Freie Universität Berlin](/org/freie-universitat-berlin).

Anna Burek reports to Audrey Tsang, Co-CEO. Anna Burek works with Christian von Hedemann - Head of User Acquisition, Lynae Brayboy - Chief Medical Officer, and Matan Eylon - Director, Engineering.

Anna Burek

Carrie Walter is a Co-CEO at [Clue](/org/clue), a position they have held since June 2019. Prior to their current role, they were a Principal Associate at [Freshfields](/org/freshfields-bruckhaus-deringer-llp) Bruckhaus Deringer from August 2015 to June 2019, where they advised on environmental and regulatory risks, crisis situations and compliance. Carrie began their career as a Trainee at [Freshfields](/org/freshfields-bruckhaus-deringer-llp) Bruckhaus Deringer in February 2007, before becoming an Associate in September 2011. In October 2011, they left [Freshfields](/org/freshfields-bruckhaus-deringer-llp) to join Bond Dickinson LLP as a Managing Associate, where they worked in planning and environmental law until June 2015.

Carrie Walter has a MPhil in Land Economy (Planning) from the [University of Cambridge](/org/university-of-cambridge), a BSc in Environmental Policy with Economics from the [London School of Economics and Political Science](/org/london-school-of-economics-and-political-science) (LSE), and a GDL / LPC in City focus (corporate, finance) from BPP Law School.

Carrie Walter

Christian von Hedemann is the Head of User Acquisition at [Clue](/org/clue). Christian has previous experience as the Head of Performance Marketing at [Wolt](/org/wolt) and as a Lead User Acquisition Manager at [Wooga](/org/wooga). Christian has also traveled around the world, exploring different cultures and lifestyles.

Christian von Hedemann has a Master of Arts in Communication Studies from [Roskilde University](/org/roskilde-university), a field in Communication and English. Christian also has a degree in Communications, American studies from [California State University, Fullerton](/org/california-state-university-fullerton). Christian is also an International Marketing Economist from Niels Brock and was an exchange student at Colony High School.

Christian von Hedemann reports to Audrey Tsang, Co-CEO. They work with Greg Ryzhov - CTO, Marta Pucci - Senior Art Director, and Amanda Shea - Head of Science.

Christian von Hedemann

Esther Bahne has over 20 years of experience in marketing, strategy, and business development. Esther is currently an executive consultant and interim CMO at [Clue](/org/clue), a biotechnology company. Esther has also served as the CMO and CSO of Rock Tech Lithium Inc., a clean tech company.

Esther has a proven track record in helping companies grow and succeed. Esther has a deep understanding of the market and knows how to position companies for success. Esther is a strategic thinker and can develop and execute marketing plans that deliver results.

If you are looking for someone to help take your company to the next level, Esther is the person you want on your team.

Esther Bahne received their Magister from [Ludwig-Maximilians Universität München](/org/ludwig-maximilians-universitat-munchen) (LMU Munich). Esther also attended the London Institute. For their Abitur, they went to Paul Klee Gymnasium Overath.

Esther Bahne works with Anna Burek - Head of Customer Support, Matan Eylon - Director, Engineering, and Marcia Arff - Head of Experience Design. Their manager is Audrey Tsang, Co-CEO.

Esther Bahne

Hans Jakob Raffauf is a German entrepreneur and the co-founder of the startup [Clue](/org/clue). Hans has also worked as a venture partner at hubraum, head of communications at Changers GmbH, and Berlin ambassador at Sandbox Network. Raffauf has a long history of working in startups and has been instrumental in the growth of the Berlin startup scene.

Hans Jakob Raffauf completed their undergraduate degree in Economics at [Maastricht University](/org/maastricht-university) in the Netherlands. Hans then went on to study at [Trinity College Dublin](/org/trinity-college-dublin) in Ireland, where they earned their degree in Economics.

Hans Jakob Raffauf

Audrey Tsang is the Co-CEO at [Clue](/org/clue). Audrey has over fifteen years of experience in product management and has held leadership positions at some of the world's top tech companies including [Pinterest](/org/pinterest), HotelTonight, and [Yelp](/org/yelp)!. Audrey is also a co-founder of Waddle, a mobile app that was acquired by [Yelp](/org/yelp) in 2013. Prior to their work in the tech industry, Audrey was a counselor at Sally Ride Science, where they worked with middle school girls to get them interested in STEM fields.

Audrey Tsang has a BS from [Stanford University](/org/stanford) in Computer Science, an MS from [Stanford University](/org/stanford) in Computer Science and Human Computer Interaction, and an MBA & MEM from Northwestern University - Kellogg School of Management in Operations, Innovation & Design. Audrey is also certified as a Certified Professional Co-Active Coach (CPCC) from the Co-Active Training Institute.

Anna Burek - Head of Customer Support, Antonia Seffen - VP, Finance, and Anna-Lena Bar - General Counsel report to Audrey Tsang.

Audrey Tsang

Greg Ryzhov has over fifteen years of experience in the technology industry. Greg is currently the Chief Technology Officer at [Clue](/org/clue), a position they have held since 2020. Prior to joining [Clue](/org/clue), Ryzhov served as the Chief Technology Officer at Urban Sports GmbH from 2016 to 2020 and at Somuchmore GmbH from 2015 to 2016.

At Urban Sports GmbH, Ryzhov led the technology team and was responsible for scaling the company's tech, product, and BI teams. Greg also oversaw the transformation of the company's legacy tech platform, infrastructure, and mobile apps. Under their leadership, Urban Sports GmbH became the 7th fastest growing tech company in Germany in 2019.

At Somuchmore GmbH, Ryzhov was responsible for running the company's Tech, Product, and BI teams. Greg successfully built an agile tech and product team that pushed the quality of the product up by introducing SCRUM methodology, QA automation, CI tools, and end-to-end system monitoring. Greg also reconciled and fixed all customer-facing issues and data inconsistencies caused by the initial migration of the platform. In addition, Ryzhov re-launched the company's mobile apps to include personalisation, full native registration, leaner user experience, and high performance.

Ryzhov has a proven track record of successful technology leadership and is widely respected in the industry. Greg has played a pivotal role in the growth and development of several companies and has helped to shape the direction of many products. Greg is a strategic thinker with a passion for solving complex problems and a commitment to delivering high-quality products and services.

Greg Ryzhov has a type of engineer's degree in computer software engineering from Zhukovskiy Air Force Engineering Academy in Moscow, Russian Federation.

They are on a team with Anna Burek - Head of Customer Support, Sarah Ottawa - Head of People, and Yvonne Scheja - Head of Talent. Greg Ryzhov reports to Audrey Tsang, Co-CEO.

Greg Ryzhov

Ida Tin

Anna-Lena Bar is the current General Counsel at [Clue](/org/clue). Prior to this, they served as Senior Legal Counsel and Attorney at Law at ArcelorMittal Germany from September 2017 to October 2021. Bar also worked as Legal Counsel & Attorney at Law at GPG/WINGAS from December 2015 to September 2017, with a focus on energy law (mainly renewable energies). From January 2013 to December 2015, they worked as an attorney at law at Becker Büttner Held, again with a focus on energy law (mainly renewable energies). In March 2012 to June 2012, they completed a legal traineeship at [OECD](/org/oecd) in Paris with the German Permanent Mission to the [OECD](/org/oecd), mainly in the Energy and Trade Committee and the International Energy Agency (IEA). Anna-Lena has also worked as a research assistant at Schellenberg Unternehmeranwälte from October 2010 to July 2011.

Anna-Lena Bar studied law at the [Humboldt-Universität zu Berlin](/org/humboldt-university-of-berlin) and passed their first state examination. Anna-Lena then completed their legal training with the second state examination at the Kammergericht Berlin. During their studies, they also took the intermediate examination in legal sciences at the Ruprecht-Karls-Universität Heidelberg.

They are on a team with Esther Bahne - Executive Consultant & Interim CMO, Antonia Seffen - VP, Finance, and Marcia Arff - Head of Experience Design. Anna-Lena Bar reports to Audrey Tsang, Co-CEO.

Anna-Lena Bar

Marcia Arff is the Head of Experience Design at [Clue](/org/clue). Marcia has over twelve years of experience in design, art direction, and web design. 

Arff began their career as a Graphic Design Manager at Juniqe in January 2014. Marcia then became the Production Design Manager at Fab.com in October 2012, where they worked for over a year. In November 2013, Arff transitioned to [Wayfair](/org/wayfair) as their Senior Product Design Manager. Marcia stayed with the company for three years until they moved to Polaroid Originals in September 2017 to work as their Senior UX Designer. Arff left Polaroid Originals in September 2018 to join [Clue](/org/clue) as their Head of Experience Design.

Their manager is Audrey Tsang, Co-CEO. Marcia Arff works with Amanda Shea - Head of Science, Sarah Ottawa - Head of People, and Greg Ryzhov - CTO.

Marcia Arff

Yvonne Scheja

Matan Eylon

Sarah Ottawa

Antonia Seffen is currently the VP of Finance at [Clue](/org/clue). Antonia has over 8 years of experience in the financial sector. Seffen started their career as a Senior Consultant in Transaction Advisory Services at Ernst & Young. Antonia later transitioned to Real Estate Management at Seffen Treuhand GmbH. Antonia has a strong background in accounting and finance, which has helped their excel in their current role at [Clue](/org/clue).

The educational career for Antonia Seffen includes a Master of Science (MSc) in Economic Theirtory from The London School of Economics and Political Science (LSE), a Bachelor of Science (BSc) in Economics from University of Buenos Aires, and a Bachelor of Science (BSc) in International Business Economics from [Maastricht University](/org/maastricht-university).

Antonia Seffen reports to Audrey Tsang, Co-CEO. Some of their coworkers include Marta Pucci - Senior Art Director, Greg Ryzhov - CTO, and Anna Burek - Head of Customer Support.

Antonia Seffen

Amanda Shea is the current head of science at [Clue](/org/clue). Prior to this, they worked as a data consultant for pandata gmbh, a product manager for researchgate, and a scientific writer and editor for an independent contractor. Amanda has also worked in grants and developments for Mayan Families, [AAAS](/org/american-association-for-the-advancement-of-science), and Cambodian Child's Dream Organization. Amanda is a graduate of [Virginia Tech](/org/virginia-tech).

Amanda Shea has a bachelor of science from [Virginia Tech](/org/virginia-tech) and a doctor of philosophy from [Virginia Tech](/org/virginia-tech).

They are on a team with Esther Bahne - Executive Consultant & Interim CMO, Anna-Lena Bar - General Counsel, and Lynae Brayboy - Chief Medical Officer. Amanda Shea reports to Audrey Tsang, Co-CEO.

Amanda Shea

The leadership team at Clue has a wide range of experience in many different industries. Many of them have worked in customer support, research, and customer success. They also have experience in law, finance, real estate, and consulting. Additionally, many of them have started their own businesses and have experience in coaching and mentoring.

Leadership Team

About

Team members

Other teams at Clue

CEO and Executive Team

Board of Directors

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