The London software company made its name helping recruiters build relationships. Now it is breaking jobs into tasks to help employers decide what to hire, teach or automate.

CodeSignal’s CMO has spent more than two decades making software legible to people. Her sharper idea is that marketing’s most important effects often appear between the rows of the spreadsheet.
The dot-com crash killed its consumer pitch. Customers designed the replacement, a loan shark covered payroll, and 25 years later Cornerstone is trying to teach HR what comes after the job description.
Docebo grew up selling corporate learning software. Now it is wiring skills data, scattered company knowledge and AI agents into one system - a bet that the next LMS will do more than count course completions.
Codility is a B2B SaaS platform for technical hiring that lets enterprises assess software engineers' real-world coding skills remotely and at scale. Founded in 2009 and bootstrapped for a decade before raising a $22M Series A in 2020, it offers automated coding assessments, live technical interviews and skills-intelligence tools used by teams at companies including GitHub, Tesla, SAP and Barclays. It is also known publicly for its free algorithm 'Lessons' that developers use to practice for interviews.
Spire.AI is an enterprise AI company whose full-stack SaaS platform is powered by a single, domain-intelligent Generative Skills AI engine. Built on a live knowledge graph with more than 14 million skill-adjacency edges, it helps large organizations acquire, deploy, reskill, mobilize and retain talent in a skills-first way. Founded in 2007 by Saurabh Jain and Shweta Jain and headquartered in Bengaluru, India, the company has evolved its research into OpenKnowra, a context-intelligence layer that pairs enterprise understanding with autonomous execution.

Workera is an AI-native skills intelligence platform that helps enterprises verify, benchmark, and develop AI skills across their workforce. Founded in 2020 by Kian Katanforoosh and Andrew Ng, the company uses science-backed adaptive assessments and an AI mentor (Sage) to close skills gaps at scale. With over 100 million skills verified across Fortune 500 clients including Accenture, Siemens Energy, and Samsung, Workera has grown 1,021% over three years and is backed by $47.3M in funding from investors including NEA, Jump Capital, Owl Ventures, and Accenture itself.
Kian Katanforoosh is the CEO and co-founder of Workera, an AI-powered skills intelligence platform that has raised $55.5M and serves enterprise clients including Samsung, Siemens Energy, and the U.S. Air Force. Born in France to Iranian immigrant parents, he came to Silicon Valley via Stanford, where he co-created the Deep Learning Specialization on Coursera with Andrew Ng, reaching over 4 million learners. He holds Stanford's Walter J. Gores Award (the university's highest teaching honor) and was named a Forbes 30 Under 30 and World Economic Forum Technology Pioneer in 2025. His mission: make elite mentorship - the kind he received from Andrew Ng - accessible to anyone through AI-powered skill assessment and personalized learning.