We had five done by our local fertilizer company - cost about £100 for the five. Details pH, P and K, major nutrients and trace elements (Mg, Ca, S, Mn, Cu, B, Zn,Mb, Fe, Na), showing result, guideline, whether very low, slightly low, normal, high or very high plus comments eg Calcium was low in one of ours - comment was "If pH low, use calcium limestone". Those that are important for animal health are noted e.g. our sodium levels are very low, so that was commented upon.
The company is Yara. The rep didn't put any pressure on us to buy anything though.