Greylock Partners is a venture capital firm that specializes in seed, series A and B, and growth investment. The company invests in start-ups and growth-stage ventures that operate in consumer Internet and enterprise IT spheres. It is focused on investments in sectors of enterprise software technology including applications, cloud/SaaS, data center, management, networking, security, and storage; as well as a range of consumer software technology including advertising, commerce, gaming, marketplaces, media, mobile, services, and social.