We built and manage our own cloud, which is used by us, and rented out to our clients. We did this for a few reasons:
- Processing and transacting is our core business. For companies that don't have such infrastructure-heavy business models, it usually makes more sense to outsource.
- We serve ads 24/7 365 days a year. Our infrastructure can't go down, and we want control over our stability.
- We began life as a cloud-computing company built for high-transaction, reliability-focused, enterprise companies. Then we became one ourselves!
Learn more about the AppNexus Cloud: Our Cloud Wiki