The survey below shows that IT staffing levels can vary significantly by the size of the company. For example, the typical IT staffing ratio (the number of employees supported by each IT worker) is 1:27 among all companies included in the survey. However, companies with 500 or fewer employees typically have an IT staffing ratio of about 1:18, while companies with 10,000 or more employees have a ratio of about 1:40.
Ratio of IT Staff to Total Employees
|Organization Size||25th Percentile||50th Percentile (median)||75th Percentile||Organization Count|
|By Annual Dollar Volume|
|-Less than $200 Million||1:11||1:19||1:34||25|
|-$200 Million to <%500 Million||1:19||1:36||1:61||20|
|-$500 Million to <%1 Billion||1:11||1:31||1:53||17|
|$1 Billion to <%5 Billion||1:20||1:36||1:82||20|
|-$5 Billion or More||1:10||1:15||1:25||20|
|By Total Number of Employees|
|Less than 500||1:8||1:18||1:34||16|
|-500 to <1,000||1:14||1:25||1:40||14|
|-1,000 to <5,000||1:11||1:23||1:45||38|
|-5,000 to <10,000||1:10||1:25||1:53||15|
|-10,000 or more||1:23||1:40||1:112||20|
Reprinted with permission from Organizing for Results: IT Structures and Staffing Survey by people3, Mercer Human Resource Consulting, and ITAA.