A bidding war is on the rise regarding the intended buyout of Israeli company Cotendo, as Juniper Networks, AT&T and Akamai Technologies face-off over the innovator of cloud-based acceleration services for web and mobile sites and applications.

Akamai was reported to have been in advanced talks to acquire the company for some $300 million before AT&T and Juniper jumped in.

Cotendo’s customer base includes Fortune 500 enterprises, Tier 1 telecommunications providers and the world’s largest social networks, eCommerce sites, and advertising networks, Cotendo’s unique suite of software-based content acceleration offerings provide unprecedented site performance, transparency and application-level management capabilities as well as granular content delivery flexibility, and best-in-class content acceleration capabilities.

Many of Cotendo’s management are former executives at Commtouch Software — the veteran Israeli web security company that has been around since 1991.

Should a deal be struck for the reported buyout figure, it will be one of the most successful exits by an Israeli high-tech company in the past decade.

Cotendo, which was founded in 2008, is funded by Sequoia Capital, Benchmark Capital and Tenaya Capital. The company is headquartered in Silicon Valley with R&D based in Israel.