Stores owe you money, we're gonna get it for you.


COMPANY SIZE Between 10 and 25

# OF ENGINEERS Between 10 and 25


TAGS E-Commerce, Payments, Consumer Products, YC Summer 2015


What do we do?

Paribus gets you money back on your online purchases, right from the inbox.

Stores guarantee that if you buy something online and it goes on sale later, you are entitled to the difference. But getting it is a hassle. So much so that Americans are leaving $10 billion unclaimed every year -- just on their online shopping! Paribus gets you this money back automatically.

Paribus syncs with email, identifies receipts and works on your behalf to contact stores for a price adjustment. The beauty is you don’t have to change how you shop at all to benefit -- just add your email and you’re done.

Technical challenges

1) Scaling rapidly growing infrastructure and user base
2) Scaling and maintaining receipt and product parsers
3) Building top-notch security features around current infrastructure
4) Constantly adding support for new stores
5) Managing and scaling a network of proxies across the US

Why join us?

1) Top Growing YC company (Consistent 40%+ monthly for 1 year+, even after YC)
2) Generating revenue, low burn
3) Consumer-focused with a potential to completely disrupt online shopping
4) Extremely rich data set to use for predictive analytics ($1B+ in annual purchase data)
5) Multi-cultural founding team

Our press coverage

Our Founders

Karim Atiyeh

Founder / CTO  

Our tech stack

  • Python
  • PostgreSQL
  • Celery/RabbitMQ
  • Objective C
  • AngularJS
  • Django
  • Amazon RDS
  • Redis
  • Bootstrap

Our investors

  • General Catalyst Partners
  • Greylock Partners
  • Y Combinator
  • Slow Ventures
  • Foundation Capital
  • Soma Capital
  • Conversion Capital
  • Mick Johnson
  • 1/0 Capital