20-first is a global consultancy dedicated to helping organizations achieve sustainable gender balance and build inclusive leadership cultures. Founded by Avivah Wittenberg-Cox, the firm provides strategic advice, leadership development programs, research, and workshops to multinational corporations and large organizations. They are known for their data-driven approach and practical solutions that enable companies to leverage diversity as a performance accelerator and adapt to the evolving demands of the 21st-century workforce and marketplace.
Central hub for global operations, strategy development, client engagement, and pioneering research in diversity, inclusion, and leadership.
Modern office facilities situated in a dynamic London business area, designed to foster collaboration, host client workshops, and support thought leadership activities.
Emphasizes inclusivity, collaboration, intellectual rigor, and a strong commitment to delivering impactful and transformative outcomes for clients in a dynamic, forward-thinking environment.
Serves as the strategic core for 20-first's international influence, dissemination of research findings, and the development of innovative diversity and inclusion solutions for a global clientele.
20-first serves organizations globally through its primary offices in London and Paris, complemented by a network of international experts and associates. Key functions supported worldwide include bespoke leadership development programs, diversity and inclusion strategy consulting, executive coaching, data-driven gender balance audits, research publication, and workshops tailored for multinational corporations and large institutions across various cultural and business contexts.
124 City Road
London
England
United Kingdom
Address: 10 Rue de Penthièvre, 75008 Paris
Supports 20-first's mission across continental Europe, focusing on adapting D&I strategies to diverse local business cultures, regulatory environments, and client needs.
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As of April 2025, 20-first' leadership includes:
20-first has been backed by several prominent investors over the years, including:
No major C-suite executive hires or departures have been publicly announced for 20-first in the past 12 months, indicating stability in its core leadership team. The company continues to be led by its established executives.
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Common email formats at 20-first likely follow standard professional patterns, often incorporating employee names and the company domain '20-first.com'.
[first_initial][last]@20-first.com
Format
jdoe@20-first.com
Example
80%
Success rate
World Economic Forum • May 14, 2024
Avivah Wittenberg-Cox, CEO of 20-first, was featured by the World Economic Forum, sharing insights from her Forbes article on why many corporate gender balance initiatives are not delivering results and outlining practical, actionable strategies for companies to achieve meaningful and sustainable gender parity....more
20-first Official Website • December 2023
20-first, in partnership with INSEAD, published its annual Gender Balance Scorecard. The 2023 report analyzes female representation in executive leadership and on boards of major global companies, providing critical data on progress and persistent gaps in achieving gender parity at senior levels....more
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