I wonder if all 4 of the folks who voted "other" could be classified in service.
Basic Materials (chemicals. material, metals, oil, ...)
Conglomerates (you work for a big conglomorate)
Consumer Goods (housewares, appliances, foods, beverages, vehicles,...)
Financial (investment, insurace, asset management,...)
Industrial Goods (industrial/fabrication equimpment.tools, ...)
Other (try to see if you fit a sector before piocking this one)