| 1. | The Denali Group | | | Analysis of information technology products. Free downloads of summary reviews. Detailed reviews available for purchase. www.sellmorenow.com |
| 2. | Aberdeen Group | | | Research and analysis of information technology companies and products. Many free downloads. Custom consulting services. www.aberdeen.com |
| 3. | Gartner Group | | | Research and analysis of information technology companies, products, and services, and of several industry sectors. Custom research and consulting services. Events and conferences. www.gartner.com |
| 4. | AMR Research Central | | | Research and analysis of information technology companies, products, and industry trends. Free newsletters. www.amrresearch.com |
| 5. | Meta Group | | | Research and analysis of information technology products. Organizes events. Custom research and consulting services. www.metagroup.com |
| 6. | International Data Corporation | | | Research of information technology companies and markets. Free newsletters. Custom consulting services. [Editor's note: Site navigation may not be accessible in all browsers.] www.idc.com |
| 7. | Technology Evaluation | | | Research of information technology products. Some free downloads and newsletters. www.technologyevaluation.com |
| 8. | Butler Group | | | Research and analysis of information technology covering products, services, and companies. Organizes events. Some free downloads. Custom consulting services. European and Australian base. www.butlergroup.com |
| 9. | Ovum | | | Research and analysis of information technology companies, producs, and services. Organizes events. Some free downloads. Custom consulting services. European based. www.ovum.com |
| 10. | Idate | | | Research and analysis of telecommunications, Internet, and media companies. Organizes events. Free downloads. Custom consulting services. www.idate.org |
| 11. | Robert Frances Group | | | Analysis of information technology companies and services. Few free downloads. www.rfgonline.com |
| 12. | Yankee Group | | | Research and analysis of information technology companies, products and services, and specific industry sectors. Organizes events. www.yankeegroup.com |
| 13. | Differentia LLC | | | Research and analysis, primarily of voice technologies. Custom consulting services. www.differentia.com |
| 14. | Ventana Research | | | Research and analysis of information technology companies and products. Many free downloads. Custom consulting services. www.ventanaresearch.com |
| 15. | Juniper Research | | | Research, analysis and reporting of telecommunications technologies, markets and issues. Providers of research reports, consultancy and free white papers. www.juniperresearch.com |
| 16. | ARC Advisory Group | | | Research and analysis on business solutions used in the manufacturing industries. Includes market trends, companies, products, advice, strategy, and technology assessments. Free newsletters and reports. www.ARCweb.com |
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