For a start:

Michael Bishop
Tom Caulfield
Burt van der Wolf
Jared Sacks
All the guys at Soundmirror.

Tony Falulkner (UK)
Simon Eadon (UK)
James Lock

https://en.wikipedia.org/wiki/Grammy_Award_for_Best_Engineered_Album,_Cl...

Jack Renner (Telarc, engineer)

Avoid:
German prod/eng Deutsche Grammophon team roughly starting early 1970s.

NOTE: I wanted create a NEW, ORIGINAL, dedicated thread called "Classical labels with best sonics"

I can't create new, original THREADS because of some spiritual approval issues with Mr. Austin.

Very strange. Ergo ... Nota Bene: We miss the ORIGINAL JA at the helm!! God save the Queen!!

https://www.stereophile.com/content/what-happened#comment-613181

But since I can post in (REPLY ONLY in) older threads, others' threads, this is my content:

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A few criteria:

--the label must be mostly classical (say, over 60% -- so Reference Recordings just squeaks in)

--the label must have no fewer than 100 releases

I wasn't sure if/ how to segregate digital recordings vs. analog recordings. Or media format (LP, tape, CD, hi-rez files, streaming, etc). Also, some mono recordings (1950s, or TV or radio broadcasts) can be quite high in fidelity. (FM mono is superior to FM stereo; and very early pre-WW2 AM was better than post-WW2). All these issues can be explained in brief, contextual comments.

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LET'S GO!!!!

Telarc
Reference Recordings
Linn
Pentatone
Hyperion
Chandos
RCA Living Stereo
Mercury Living Presence

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There are others like BIS, DaCapo, Archiv ... but not as memorable. Please comment as necessary!!!!!!!!
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Honorable mentions:

TACET -- I was going to place this German label in the main list but removed it because TACET seems to concentrate on chamber and solo works, and not orchestral. Still, this is probably my favorite label for testing my audio system.
Pristine Audio (UK) -- these folks breathe new life into recordings going back to the 1920s.
Varese Sarabande -- film music, with very high sonic standards. VSD essentially take movie scoring sessions and edit them into albums. And film studios have big budgets for recording movies.

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Engineers:

Tony Faulkner (Hyperion, Naxos)
Simon Eadon (Decca/Argos)
see Wiki Ref.
-------------------
Refs:
https://audiophilestyle.com/forums/topic/27121-the-best-labels-for-the-b...
mercury.lacyway.com mercury.lacyway.com
https://en.wikipedia.org/wiki/Grammy_Award_for_Best_Engineered_Album,_Cl...

================

More labels with great sonics

Lyrita
Harmonia Mundi
Astree
Nonesuch
RCA Victrola
Proprius
Sheffield Lab
Moment! (Indian Classical label
Deutsche Gramophone
Decca