Hubspan's flagship solution, WebSpan SaaS Integration Platform, provides a flexible, secure and cost-effective way for businesses to work together, extending existing infrastructure and supporting all applications and protocols.

SaaSGrid is an application server and framework that trivializes building public and private SaaS applications by leveraging your expertise and IP in Microsoft's .NET, SQL Server, ASP.NET & Silverlight.

Providing a hosted Chef Server for infrastructure automation and configuration management as a service.

Best developer tools available as SaaS: Jenkins continuous integration, GIT&SVN repositories, maven repositories, etc.

Microsoft SaaS offering including Office, Exchange, SharePoint, and Lync.

http://cloud.pervasive.com/

PlanMill Cloud CRM, PROJECT, PSA and ERP — trusted by over 100 successful service businesses in 25 countries — enables you to work smarter and increase profitability. To further boost your business, connect your applications through PlanMill Open API.

Cloud-based web design and deployment toolkit.

CloudPassage provides security SaaS solutions for securing cloud servers. http://www.cloudpassage.com/

http://browsermob.com/performance-testing

NetSuite has been around since the dawn of Cloud Computing and we have invested our energy into strong functionality and core processes from front-to-back office for businesses.
Now is the time for NetSuite's capabilities to shine amongst the giants.

Arrivu is a web development platform that lets you build apps in plain English without the developer. Imagine letting the computer know what you want and it automatically generates it for you. Arrivu uses Artificial Intelligence to achieve this. For details please visit www.arrivu.com

True SaaS Business App with a 100% customizable feature with Agilewiz BPMS

Excellent solution for HR - any size company is good here