Cardboard Journal's Take
ISA (International Sports Authentication)
An early alternative that never gained traction — still operating, but with little resale recognition to show for fifteen years.
What Sets Them Apart
Founded 2010 as a fourth option alongside the then-big-three, and still running a single service level — $15 a card, 14 days, no upcharges — with a working certificate lookup and declared-value insurance to $15,000. Its pitch is aimed at dealers managing inventory rather than collectors chasing a premium.
Tier
Our rating of how well the resale market actually recognises this grader.
Turnaround
14 days
Backlog
None published
What They Grade
- Sports Cards
- TCG
Marketplace Acceptance
Certificate lookup:Verify a cert →
eBay
ISA does not appear on eBay's professional grader filter list and is not covered by the Authenticity Guarantee, so its slabs get neither grader searchability nor buyer protection.
Auction houses
Not accepted as standard inventory at Goldin, Heritage or PWCC.
Card shops and general resale
Little current recognition despite operating since 2010, though ISA does maintain a working certificate verification lookup, letting a buyer confirm a slab is genuine even where the market assigns it no premium.
Fifteen years without building acceptance is the finding — this is not a new company that hasn't had time.
Pricing
One service, and the headline price understates it. Grading is $15 a card, but a 10-card minimum sets a $150 floor before return shipping ($20 to $100 by quantity) and insurance ($1 per $100 declared, to $15,000). A modest submission lands meaningfully above the advertised rate. ISA states this is currently its only available service, so there is no faster option to pay for.
The Slab
A conventional clear holder with a dark inner mat.
Example slab shown for reference — not a card I personally own.
The Label
SubgradesNone
A blue-bannered flip spelling out International Sports Authentication under the grade, with a cert number and a validator app behind it. The layout borrows heavily from the familiar white-and-blue template rather than establishing anything of its own.
Grader Use Cases
- Protection & Preservation
- Insurance
Protection only, and with a caveat. The holder protects the card; the grade carries a question we cannot resolve.
Known Concerns
Its founder was previously banned by PSA for card trimming — an unresolved question that goes directly to trusting the company's authentication judgment. Fifteen years of operation have not produced meaningful resale recognition, which is itself a finding. Independent coverage is sparse and dated. Some hobby sources report ISA as defunct; its site and cert lookup were live when this was written.
On The Wire
What the hobby is saying about ISA (International Sports Authentication), with our read on what it changes for you.
ISA's 14-day, $15 flat pitch is aimed at dealers, not flippers
Cardboard Journal's TakeBuilt for dealers turning inventory, not for chasing a grade premium.
isagrading.com2026-08-30
History
International Sports Authentication launched in 2010 from Michigan, positioning itself as a fourth option alongside what were then the big three.
The timing was reasonable and the proposition straightforward, but ISA never achieved the market penetration of the graders it set out to compete with.
Fifteen years on it continues to operate, with a certificate verification lookup available on its site, but its presence in hobby discussion and in secondary-market pricing remains slight.