Gov.uk and Nhs.uk are excellent examples. Their plain design is the result of a lot of user research, while their target demographic is the entire population of

Gov.uk and Nhs.uk are excellent examples. Their plain design is the result of a lot of user research, while their target demographic is the entire population of a country. Their content guidelines are publicly available, and well worth a read. Just look up any health condition, and see how the straightforward design and plain language content make you feel. It's a huge source of inspiration for my own website about German bureaucracy.