Medallion Signature Guarantees · Est. 2017

Your bank said no. We say yes.

You've been sent here by a transfer agent. We're a STAMP-participating institution and we do this — and only this — online, for every state.

Get Your Stamp From $300 · Stamped within 5 business days
25,000+
stamps issued
All 50
states served
STAMP
member · 17Ad-15

Your medallion · applied in your name

STAMP STAMP SIGNATURE GUARANTEED MEDALLION GUARANTEED eSIGNATURE GUARANTEE, LLC eSignature Guarantee (123Z) AUTHORIZED SIGNATURE X1234567 SECURITIES TRANSFER AGENTS MEDALLION PROGRAM

What you get

An authorized STAMP medallion — applied, shipped, accepted everywhere.

Computershare· Equiniti· BNY Mellon· AST· Broadridge· Continental

Accepted by every major U.S. transfer agent.

Why we exist

You need a stamp. Your bank won't help.

A transfer agent told you to get a Medallion Signature Guarantee. Your bank said no. Most stopped offering them years ago — the liability isn't worth it to them.

You're probably managing an estate, dealing with inherited stock, or moving assets between accounts. You didn't ask for this paperwork. You just need it done.

That's all we do. Since 2017, over 25,000 stamps issued. From $300. Stamped within 5 business days. We know the transfer agents, the paperwork, and what gets rejected.

Three steps · Five business days · No branch visit

How it works

Step 1

Verify who you are

Sign up and complete a quick identity check online. No branch visit, no appointments.

Step 2

Tell us about the transfer

Answer a few questions. We'll tell you exactly what documents you need — no guessing.

Step 3

We review, stamp, and ship

Our compliance team checks everything. Once approved, we apply the medallion and send your stamped documents.

You'll see exactly where you are, the whole way.

Progress saves automatically. Come back anytime. If something's missing, we tell you before you pay.

app.esignatureguarantee.com ● live
Transaction detail in the eSignature portal

From a recent customer

"My mom passed and the last thing I wanted was more paperwork. They told me exactly what to send and handled the rest."
EP
Emily P.
California · Estate transfer · March 2026

Stock Power Form

For transferring shares, changing names, or adding a beneficiary

1. Account Number: •••• •••• 4412
2. Company of stock: ACME HOLDINGS, INC.
3. Current Registration: MARGARET R. PARSONS
Private Sale Gift Inheritance

Note to Guarantor: Medallion Stamp must be fully legible and must NOT be dated or annotated.

Margaret Parsons X — Signature of registered owner

AFFIX MEDALLION STAMP HERE

Why trust us

Built for this one job. Regulated, bonded, practiced.

Most banks stopped offering medallion guarantees because they do a dozen other things and this isn't worth the liability. We do this, and only this.

STAMP Program Member

We're an authorized participant in the Securities Transfer Agents Medallion Program — one of three programs recognized under SEC Rule 17Ad-15.

Bonded & Insured

We carry professional errors & omissions insurance and are bonded to protect our customers and the institutions that rely on our stamps.

25,000+ Stamps Issued

Since 2017, we've processed over 25,000 medallion guarantees for customers in all 50 states. We know the paperwork.

Accepted Everywhere

Our guarantees are accepted by all major transfer agents — Computershare, EQ, BNY Mellon, AST, and others.

Common questions

Can't find your question? Send us a note — we reply within one business day.

Is an online medallion signature guarantee legitimate?

Yes. A medallion signature guarantee is valid based on the guarantor's membership in a recognized medallion program (STAMP, SEMP, or MSP), not whether the process happens in person or online. eSignature Guarantee is a STAMP-participating institution, and our stamps carry the same legal weight and are accepted by the same transfer agents — Computershare, EQ, AST, and others — as any bank-issued stamp.

Why is it so hard to get a medallion signature guarantee?

Most banks have stopped offering them because of the liability involved. When a bank stamps your document, it's guaranteeing the signature is genuine and the signer is authorized — if something goes wrong, the bank is financially responsible. High liability, low demand, and training costs mean most branches quietly dropped the service. That's why we exist.

How much does a medallion signature guarantee cost?

At a bank or broker, stamps are typically free — but only if you qualify, which most people don't. Online services like eSignature Guarantee start at $300 per stamp, covering transfers up to $500,000 and including identity verification, compliance review, and return shipping. Processing within 5 business days.

What if my bank doesn't offer them?

You have a few options. Try other branches, open an account at a bank that offers the service (and wait the typical six-month qualifying period), or use an online service. We're a STAMP-participating institution and handle all transaction types — estates, trusts, corporate transfers, individual accounts — entirely online. No bank relationship required.

Ready when you are

Get the stamp your bank wouldn't give you.

Five business days. From $300. No branch visit, no six-month waiting period.