Stemettes
Stemettes is a UK social enterprise that encourages girls and young women to pursue education and careers in science, technology, engineering and mathematics.
Last updated August 25, 2026
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Overview
Stemettes is a United Kingdom social enterprise focused on improving the participation of girls and young women in science, technology, engineering and mathematics (STEM). Its work is aimed primarily at people aged five to 25 and combines outreach, mentoring, events, entrepreneurial education and digital resources. Rather than operating as a conventional consumer brand, Stemettes functions as an education and social-impact organisation whose public identity is built around widening access to STEM role models, networks and career pathways. The organisation was founded in 2013 by British mathematics and computing prodigy Anne-Marie Imafidon. In 2015, Jacquelyn Guderley joined Imafidon as a co-founder. Stemettes emerged during sustained public concern about the under-representation of women and girls in technical and scientific education and employment. Its programmes seek to address that imbalance at several stages, from early exposure to STEM subjects through to support for students and aspiring entrepreneurs. Stemettes has delivered panel events and hackathons designed to give participants direct contact with STEM professionals and practical experience of problem-solving. It has also run the Student to Stemette mentoring programme, which has been supported by Deutsche Bank. These activities connect young participants with mentors, speakers and peers while presenting STEM careers as accessible and varied. The organisation has worked with major companies including Deutsche Bank, Salesforce, Accenture, Bank of America Merrill Lynch, BP and Microsoft. A notable strand of Stemettes' work has been its support for technology entrepreneurship among girls. In July and August 2015, it operated the Outbox Incubator in London, a six-week residential business incubator for girls developing STEM-related start-ups. The initiative attracted attention for creating an intensive, women-focused environment for technical and entrepreneurial development and was informally described as an “X-men house for girls.” Its digital successor, the OtotheB app, was officially launched in February 2016. OtotheB was positioned as an online platform for girls interested in STEM and entrepreneurship and was positively received by figures including technology academic and campaigner Sue Black. Beyond direct programming, Stemettes has acted as a public voice on inclusion in STEM. The organisation has been consulted by the UK Government and the European Commission on issues concerning women in STEM, indicating that its role extends beyond programme delivery into policy and sector advocacy. In October 2014, it was named European Digital Impact Organisation of the Year by the Digital Leadership Institute. The available reference material does not establish a precise headquarters, legal ownership structure, current executive roster, annual financial figures or an official website URL. Stemettes is best understood as an active social-enterprise brand centred on STEM participation, mentoring and entrepreneurship for girls and young women, with partnerships and policy engagement complementing its own educational initiatives.
History
Stemettes was established in 2013 by Anne-Marie Imafidon, a British mathematics and computing prodigy, to encourage girls and young women to consider STEM subjects and careers. The organisation's target audience spans childhood, secondary and higher education, and the early stages of professional or entrepreneurial development, covering people broadly aged five to 25. Its approach combines visibility, participation and support. Stemettes has organised panel events that introduce young people to professionals working in STEM, as well as hackathons that provide hands-on experience with technology and collaborative problem-solving. It has also operated the Student to Stemette mentoring programme, supported by Deutsche Bank. Through these formats, the organisation has sought to address both practical barriers and cultural perceptions that can discourage girls from pursuing technical fields. In 2014, Stemettes received recognition from the Digital Leadership Institute, which named it European Digital Impact Organisation of the Year. The award helped highlight its digital-inclusion mission and its contribution to broadening participation in technology-related fields. In 2015, Jacquelyn Guderley became a co-founder. That year Stemettes expanded into technology entrepreneurship through the Outbox Incubator, a six-week residential programme held in London from July to August. The incubator supported girls with STEM start-ups and created an intensive environment combining business development, technical interests and peer learning. It later became associated with the informal description “X-men house for girls,” reflecting its distinctive women-focused technology setting. The Outbox concept subsequently produced a digital offshoot. In February 2016, Stemettes officially launched the OtotheB app, an online platform for girls interested in STEM and entrepreneurship. The app extended the organisation's mission beyond in-person activities by providing a digital resource for discovery, learning and connection. It received positive comments from STEM figures including Sue Black, an academic and campaigner. Stemettes has developed partnerships with large employers and technology-oriented organisations, including Deutsche Bank, Salesforce, Accenture, Bank of America Merrill Lynch, BP and Microsoft. These relationships have supported its programmes and connected participants with established businesses and potential role models. The organisation has also been consulted by the UK Government and the European Commission on matters related to women in STEM, giving it a policy and advocacy role in addition to its direct work with young people. The available reference material does not provide a complete account of later programme activity, organisational governance, finances or current leadership. It does, however, establish Stemettes as a UK social enterprise whose history is defined by STEM outreach, mentoring, entrepreneurship support, digital resources and institutional partnerships.
- 2016
OtotheB app launched
[1]The Outbox Incubator spin-off app launched as an online platform for girls interested in STEM and entrepreneurship.
- 2015
Jacquelyn Guderley becomes co-founder
[1]Guderley joined Imafidon as a co-founder of Stemettes.
- 2015
Outbox Incubator operates in London
[1]Stemettes ran a six-week residential incubator for girls with STEM start-ups during July and August.
- 2014
European Digital Impact Organisation of the Year
[1]The Digital Leadership Institute recognised Stemettes for its digital and social impact.
- 2013
Stemettes founded
[1]Anne-Marie Imafidon founded Stemettes to encourage girls and young women to pursue STEM education and careers.
Products and positioning
An inclusive STEM education and social-impact organisation that helps girls and young women discover, enter and progress in science, technology, engineering and mathematics through role models, mentoring, practical activities and entrepreneurship support.
Mentoring programme
Student to Stemette
A mentoring programme connecting students with people who can provide exposure to STEM study and career pathways. The programme is associated with support from Deutsche Bank and reflects Stemettes' emphasis on role models, guidance and sustained engagement rather than one-off awareness activities.
Entrepreneurship incubator · 2015
Outbox Incubator
A six-week residential business incubator held in London in July and August 2015 for girls developing STEM-related start-ups. It created a dedicated environment for entrepreneurial development, peer learning and technology-focused business ideas.
Digital platform · 2016
OtotheB
An online platform and app for girls interested in STEM and entrepreneurship. OtotheB was developed as a digital spin-off from the Outbox Incubator and officially launched in February 2016, extending Stemettes' educational and entrepreneurial mission into an online format.
STEM outreach
Stemettes panel events and hackathons
Events that combine career awareness, professional role models and practical participation. Panels expose young audiences to people working in STEM, while hackathons offer collaborative problem-solving and technology activities.
Brand decisions
2016
Launch OtotheB as a digital extension of OutboxProduct launchBackground
The Outbox Incubator provided a basis for a broader online resource for girls interested in STEM and entrepreneurship.
Action taken
Stemettes officially launched the OtotheB app as an online platform.
Aftermath
The app received positive public comment from STEM academic and campaigner Sue Black.
2015
Expand into STEM entrepreneurship through Outbox IncubatorStrategyBackground
Stemettes sought to support girls not only as future STEM students and employees but also as technology entrepreneurs and start-up founders.
Action taken
It operated a six-week residential incubator in London for girls with STEM start-ups.
Aftermath
The initiative led to the development of the OtotheB digital platform, which launched in 2016.
Recent events
- 2016
OtotheB app launches[1]
Product launch
Stemettes officially launched OtotheB, an online platform for girls interested in STEM and entrepreneurship.
- 2015
Stemettes launches Outbox Incubator[1]
Other
Stemettes ran a six-week residential incubator in London for girls developing STEM-related start-ups.
- 2015
Jacquelyn Guderley joins Stemettes as co-founder[1]
Leadership change
Jacquelyn Guderley became a co-founder alongside Anne-Marie Imafidon.
- 2014
Stemettes named European Digital Impact Organisation of the Year[1]
Other
The Digital Leadership Institute recognised Stemettes for its contribution to digital impact and inclusion.
Sources1 sources
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