Valuations are not always straightfoward, and we don't know Airtable's ARR. I see Airtable as an Excel + Repl SaaS replacement. Does that have a larger market available to it? Maybe! Also, it doesn't appear Airtable has any competitors in the space (whereas your example has multiple competitors; MuleSoft is at ~$300 million/year in revenue, Microsoft doesn't break out their Flow service revenue unfortunately).
I think Airtable and Zapier are both great products, and recommend both to clients, but they have different use cases.
What's the most impressive Airtable use-case that comes to your mind, since you recommend it to clients?
I'm trying to think of something that Google Spreadsheet + Zapier add-ons don't cover...can't come up with much
A client has a popular t-shirt production business and brand that does around $60 million a year in revenue and they're using Airtable as their process workflow tool (inventory, shipping, production, etc). They'll eventually graduate to a traditional ERP system, they're just not ready yet.
Also, I don't find Google Spreadsheet to be a compelling tool for anything mission critical.
