The rest are full-time technicians responsible for day-to-day operations.
The Hockney Theatre hosts a programme through the year and a full-time technician manages a student production team to service the performances.
He then moved out of the basement and into an office park and hired two full-time technicians and a secretary.
Five full-time technicians each level.
Today, 12 people work for him: three part-time physicians, four full-time technicians and five clerical employees.
Technical help has also grown from a single part-time technician to two full-time technicians.
Two full-time technicians travel with the United States team and work exclusively on the skis the company produces for the Americans.
Top downhillers travel with a full-time technician who tunes and maintains a quiver of as many as 20 or 30 pairs of skis.
At Carmen Arace, a full-time technician often has to keep ailing laptops overnight to fix them.
Typically, he has brought along his own piano and a full-time technician, expenses he must cover himself.