I wonder how they're doing. Crunchbase https://www.crunchbase.com/organization/citymapper-limited/c... has a Series B for $40M back in 2016, and a crowdfunder for £6.7M in 2021. I can't imagine the pandemic was kind to them. It's a shame really, I remember they were fairly active in the London tech meetup scene around their B, usually quite enjoyable talks.