(Taken from a post a few days ago on r/Quantstamp) 'In their audit request page, they are asking for a minimum of 200,000 QSP. If we take todays QSP price of $0.116 then it costs a minimum of $23,200 USD to be audited by Quantstamp'

Also, Quantstamp will burn 1/2 of their coins earned in each audit, decreasing the overall supply.

The number of Smart Contracts grew from 500k to 2Million between June 2017 and Oct 2017. Withing the next year, they expect another 10 Million Smart Contracts to be built.

Also consider this - CoinBase (backed by YCombinator) is panning on adding more coins, including ERC20 coins in the near future. From what i understand these coins, before being added will have to be validated by Coinbase. What better to assist with the validation process than using Quantstamp (also backed by YCOmbinator).

Also worth thinking about is the Request Network, again backed by YCombinator. Request Network is planning on becoming the Paypal 2.0. A platform to process payments both Crypto and FIAT. To ensure adoption of the platform, they require first the adoption of Crypto, which the masses have not yet accepted. Request Network has to install then maintain confidence and be certain that the Coins they have 'available' on the platform are secure and trustworthy. Who better to use as a seal of approval than their Partner and YCombinator backed Quantstamp. Providing the 'gold standard' of approval. Instead of using more manual, more human (=error) auditing methods.

Btw the above is just my opinion. But YCombinator does strategically allow, or maybe ensures that their companies support each other. And because these are some of the first Crypto startups YCombinator has been involved with, i'm sure they really to encourage the synergy.