Accreditation check

This page is not an accusation. “Montessori” is not a trademark, memberships renew every year, and a school can be excellent whether or not a directory currently lists it. Our job as an independent guide is simply to show you where a school's public claim and the official record line up — and where they don't — so you can ask the right question.

What the labels mean

• AMS-accredited — the highest bar: AMS formally reviewed the school against its standards. Relatively rare.
• AMS member — the school holds an AMS membership. This is not accreditation. Membership has tiers (full member, and Pathway stages such as “Verified”).
• AMI / AMI-recognized — affiliated with the body Maria Montessori founded; AMI recognition is a separate, rigorous standard.
• IB (PYP) — an authorized International Baccalaureate Primary Years Programme school.
• Montessori-inspired / independent — uses Montessori ideas without a current third-party affiliation. Perfectly legitimate — just verify what matters to you.

The key trap: member ≠ accredited, and marketing often blurs the two. See the deeper explainer in Is it real Montessori?

How to verify a school yourself — in five minutes

• Check AMS. Go to amshq.org/schools and search the school's name (or “New York, NY”). A current school appears with a seal — Accredited, Member, or a Pathway stage. If it doesn't appear, it is not in AMS's current directory.
• Check AMI. Go to amiusa.org/school-locator and filter by New York. AMI recognition is separate from — and rarer than — AMS.
• Check IB. Use Find an IB World School at ibo.org.
• Ask the school directly. “Are you a current AMS member or AMS-accredited for 2026–27?” Memberships lapse and renew — ask for this year's status, and whether it's membership or accreditation.
• Read the tier, not just the logo. An “AMS” logo can mean accredited, member, or a teacher's credential. They are very different claims.

Verified in an official directory (July 2026)

These schools' labels matched the official record when we checked.

Claimed, but not in the current directory (July 2026)

Each school below describes itself as affiliated (on its own website or in third-party listings), but does not appear in AMS's current online directory when we checked. AMS membership renews annually, so the most likely explanation is a lapsed or in-progress listing — not misconduct. We've kept the school's stated label and added this note so you can confirm the current status directly.

A flag is a prompt to ask, not a verdict. Many flagged schools are well-regarded; some may simply be mid-renewal, listed under a different legal name, or accredited by a body we didn't check (for example Middle States, which several Twin Parks pages cite). If you have documentation that updates any row, please send us a correction and we'll update it.

Method & caveats

• What we checked: each school's claimed AMS / AMI / IB affiliation against those organizations' own public directories.
• When: July 2026. Listings change — always re-check for your admissions year.
• Presence is reliable; absence is a prompt. Appearing in a directory confirms current status. Not appearing means “not currently listed,” which can result from a lapsed renewal, a name mismatch, or a school opting out — so we frame it as a question, not a conclusion.
• Scope: we assessed public affiliation records only — not teaching quality, safety, or how good a fit a school is for your child.