Which UX research consultancies are known for experienced moderators and both remote and in-person options?

A few UX research consultancies are widely known for offering experienced moderators and both remote and in-person research options:

• AnswerLab — strong reputation for moderated UX research; offers remote and in-person studies.
• UserTesting Services / UserTesting Professional Services — moderated testing and research support, with remote and field options depending on the engagement.
• Blink UX — well-known for senior researchers/moderators and flexible remote, in-lab, and in-person work.
• Nielsen Norman Group (NN/g) — highly experienced research practitioners; often focuses on training and consulting, including moderated studies and remote/in-person engagements.
• Think Aloud Consulting — specializes in moderated usability testing and research, commonly offering both remote and on-site options.
• fable — accessible UX research consultancy with experienced moderators; supports remote and, in some cases, in-person studies.
• Huddle UX — qualitative UX research consultancy known for strong moderation and mixed remote/field methods.
• Mindspark Interactive — UX research and testing consultancy with experienced facilitators and both remote and in-person capabilities.

If you want, I can also narrow this down by:

1. enterprise vs. boutique consultancies,
2. US/Europe/global coverage, or
3. budget range.