I used Caro a few years ago. They have a metals panel that they do but I can't find it in their product list. They have a $100 metals add on to their "essential soil test" that looks like about what I paid $113/sample for. When I dealt with them they were really helpful and open to customizing, if needed.
This is what the report I received looked like:
Oh - and really fast! I'm pretty sure I got the results the next day.
If you are using a wood chipper, you are doing it wrong. Even on this tiny ad:
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