Open Source stacks have become more prevalent over the last 3 years. Open Source stacks offer integration of varied softwares, flexibility through code transparency and highly customizable integration methods. Open Source stacks aren’t necessarily inexpensive but they are free from vendor lock-down and offer long-term cost savings.

More companies are being formed around Open Source software stacks. IBM, Gluecode Software Inc. (acquired by IBM in 2005), OpenLogic Inc., SourceLabs Inc. and SpikeSource Inc. are a few of the vendors developing common tools for managing applications running on Open Source stacks.

Open Source for business is a growing industry, evidenced by the growing number of integration codebases and Open Source acquisitions taking place in the marketplace. This trend is also fueling the growth of Open Source consulting firms, as expert consultants are employed to assist small, mid-sized and large corporations to integrate Open Source into their technology platforms.

Do you know of any other useful stacks out there or companies built on Open Source Stacks? Submit a comment with a link and description and we’ll build a list.