MassChallenge UK connects high-impact, early stage startups with mentors, partners and investors, while providing the most high-impact support during a 3-month accelerator programme in London

  • MassChallenge UK is the most startup-friendly accelerator in London and currently has 100 startups from all different industries, from all over the world
  • MassChallenge UK does not take equity from the startups we support or take any fees from startups - we value impact over equity
  • Teams within the accelerator are eligible to compete for prizes, the maximum amount being £50,000 in cash to be awarded at the end of the programme
  • Applications for MassChallenge UK's 2016 programme open May 19, 2016



Based on the same proven model as the MassChallenge Boston accelerator program, MassChallenge launched in London in January 2015.
MassChallenge is a global network of accelerators that harnesses the power of community to connect the world’s highest impact startups with the right resources in order to drive growth, create value, and improve the world. At the conclusion of the programs, MassChallenge awards several million dollars in no-equity, non-dilutive grants to the startups demonstrating the highest impact and highest potential.



MassChallenge UK has recruited a world-class group of experts from various industries to form our judge and mentor pool. MassChallenge has a unique system of judging in which top-tier judges from the ecosystem select which startups enter the programme. Many of those same judges go on to mentor startups on-on-one throughout the programme and beyond.

Startups are chosen in two rounds of judging. Round 1 takes place online and each startup that applies receives written feedback from 3 or more judges. The startups that are invited to Round 2 judging have the chance to pitch in person in front of a panel of judges. The high-impact and high-potential startups that impress the judges are then invited to participate finalists.

To compete for shares of the award, finalist startups participating in the programme apply and pitch again during pre-final and final judging. The field is narrowed down to the top 26 and then from those between 10 and 20 startups are awarded shares of the no-equity cash prizes, the maximum amount being being £50,000 in cash to be awarded at the end of the programme.


Our Startups

MassChallenge UK specialises in helping early-stage companies. We define this as having raised less than £300K of investment, and having less than £600K in annual revenue.
What we look for is “high impact” and “high potential”. We leave this to the startups to define. Impact can be defined in terms of a profitable, social, creative, scientific or other nature, but they must also be high potential – e.g. they can actually effect those visions. MassChallenge is industry agnostic. We have companies in our current cohort in everything from fintech to social impact to clean tech. To see a full list of MassChallenge UK startups, click here.
Overall, MassChallenge’s 835 global alumni have raised $1.4 billion, have generated $575 million, and have created over 50,000 jobs.


Application Launch - May 19
Early Bird Deadline - June 8
Regular Deadline - June 30
R2 Announcement - July 25
R2 Judging - July 28 - August 3
Finalist Announcement - August 10
Finalist Announcement Reception: August 18
Bootcamp (start of accelerator) - September 7 - 8
UK Pre-final Judging - November 14 -15
UK Final Judging - November 28 - 29
Awards Event - January 18
*subject to change* 


Engage with MassChallenge UK

Sign up for our newsletter and engage with us on Facebook, Twitter, and LinkedIn to stay in touch with the UK Innovation Community.

If you have any questions please email



Newsletter signup
MassChallenge Logo

© 2016 MassChallenge