Are engineering services prevalent equally all over the world?

Not really.

In the 1900s, engineering and engineering services were primarily in some parts of western europe and north america. Currently, engg extends to more parts of Europe, Russia, and Australia. In the near future (2015), it will be in India and China as well.

Share of foreign R&D: 45% in 1975, 70% in 2006 (for all cos) – Source: Booz Allan Hamilton/NASSCOM

Top reasons for foreign R&D sites:

Business Environment (9%)
Technology Clusters or Academic Institutes - 20%
Markets or Customers - 24%
Proximity to production facilities - 12%
Qualified workers - 18%
Low cost exit base - 10%