Companies that specialize in website site speed and performace?

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#1
Are there any companies that specialize in website site speed? (I'm not looking for an online tool rather a company that can implement their recommendations) Ideally in Ireland but not essential thanks.
 
#4
Surely, there have to be some companies that offer speed improvement as part of their website optimization services. How would one go about finding a "competent web dev / web designer", @paul?
 
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