Are you a satisfied customer? It looks like most are in the U.K., according to the National Consumer Satisfaction Index, (NCSI-UK) although still less than in previous years.

The NCSI-UK looked at the average customer satisfaction for a variety of industries, including Internet service providers, mobile phone networks, energy suppliers, and more. Nationally, customer satisfaction is around 75.2 out of 100; all in all, not bad, but still a decrease of .3 percent.

Most industries had at least a small decrease in customer satisfaction. Internet Service Providers (ISPs) did not get off well, with a customer satisfaction score of 67. With issues affecting reliability, speed, and call center satisfaction, many customers had complaints to air.

Mobile network service satisfaction is hanging around 74, having dropped from 75 after last year. Tesco mobile leads the pack, with a nice score of 82, with O2 (News - Alert) and Virgin Mobile following with a respective 76 and 74.

Customer handsets are doing better than the above, with a score of 78. Apple is a clear leader there, with a score of 81, although Sony, Samsung (News - Alert), and Nokia are all closely following. HTC and Blackberry, on the other hand, are lagging behind at 73 and 70.

Surprisingly, airlines have seen an improvement in customer satisfaction, rising 1.4 percent. However, that only sets it at a score of 70, and it was helped by smaller and more affordable airlines.

This should serve as a wake-up call for many industries. While the index may only address the customers and companies in the U.K., it still reflects how many across the world are feeling. Even if the decreases are small, and the companies still have a decent score, they’re still losing the trust and praise of customers faster than they’re gaining new ones.

Companies who ranked low on the list, and who saw their rankings drop, need to re-evaluate what they’re doing and focus on providing better services to their customers and improving customer satisfaction. After all, without the customer, there’s no point to the company; but without one company providing them with goods and services, customers can always find another.