DDI | Development Dimensions International Information
Summary
DDI | Development Dimensions International is a private company that has been in the industry for 56 years. The business currently specializes in Human Resources, Management Consulting Services, Business Support Services areas. Tacy Byham is the Chief Executive Officer at the company. DDI | Development Dimensions International's headquarter is located at Bridgeville, Pennsylvania, USA. The number of employees is at least 1.0K. Register with SignalHire to connect with DDI | Development Dimensions International employees and management.
| Website | ddiworld.com |
| Social Links |    |
| Phone Number | 1-800-933-4463 |
| Industries | |
| Headquarters address | 1225 Washington Pike, Bridgeville, PA, 15017 US |
| Company Size | 1000-5000 employees |
| Specialties | Leadership Development, Leader Selection, Behavioral Interviewing, Performance Management, Performance and Execution, Succession Management, Talent Audit, Talent Analytics, Executive Assessment, Human Resources Consulting |
| SIC Code | 8742, 7380 |
| DMA Code | Greater Pittsburgh |
| Founded | 1970 |
| Estimated Annual Revenue | $100M - 500M |
| Operating Status | Independent Company |
| Updated: | 2026-07-21 |
Competitors
Name | Founded | Type | Employees |
|---|---|---|---|
| 1969 | Public Company | 5.0K - 10K | |
| 1997 | Public Company | 500 - 1.0K | |
| 1995 | Privately Held | 1.0K - 5.0K | |
| 1987 | Privately Held | 100 - 250 |
Estimated Website Traffic
The chart shows a decline in traffic to the ddiworld.com website. In June, traffic decreased to 263, compared to 415 in the previous month. The highest traffic in 2026 was recorded in January, reaching 1547 visits.
Workforce Turnover
Number of staff members switched
Departmental Headcount Distribution
Corporate Tenure Analytics
Workforce Experience Insights
1% have been with the company for less than 1 year2% have been with the company for 1 to 2 years3% have been with the company for 3 to 4 years9% have been with the company for 5 to 7 years11% have been with the company for 8 to 10 years72% have been with the company for more than 11 years
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