Y combinator startup benefits: "We have deals of varying degrees of formality with many companies in the technology world either to give free services or special access to YC-funded startups. Deals range from $500,000 in cloud hosting credits from Microsoft Azure to 60% off Optimizely’s A/B testing plans." [0]

Google also has a dedicated page where they partner with a bunch of VC's [1].

[0]: https://www.ycombinator.com/atyc/#connections

[1]: https://cloud.google.com/developers/startups/