I work in San Francisco, and I'd estimate about 20-30 people bike to where I work. We mostly have a mix of road bikes and hybrids with a couple commuter bikes and mountain bikes too. Currently, the only equipment in our bike cage is a locking entry door, a double-decker bike rack similar to this one, and a single floor pump.
I was thinking that we could start with some basic toolkit or repair kit, spare batteries for lights, loaner headlights and tail lights, and maybe a couple loaner helmets so people don't have an excuse to ride without helmets.
What else should we stock? Are there premade kits for a situation like this?