How Heystack Helped Slab Sharks Scale Smarter

November 03, 2025

We recently sat down with Karn Rai, one of the owners of the Canadian-based card consignment company Slab Sharks, to talk about how Heystack has helped improve operations and efficiency, putting them in a position to scale the company.

Before using Heystack, the Slab Sharks team was doing everything by hand, entering card titles and details into Excel sheets one by one. It worked, but it was time consuming and a barrier to scaling the company to the next level.

“Heystack completely revitalized our operations,” Karn told us. “It’s really helped our titling team speed things up, and it’s grown our business dramatically. When we started with Heystack, we were at 2,000–3,000 items, but the Heystack software allowed us to continue our growth and focus on bringing in more cards. Last time, we listed over 10,000 items, and we were able to do that with the same workforce.” Heystack’s intuitive system saved time and allowed Slab Sharks to increase output dramatically.

Another thing Karn highlighted was the customizable aspects of Heystack. “We’ve been able to shape it around our needs,” he said. From structuring folders and naming storage boxes to uploading images and creating data sets for niche hockey card collections, the Heystack team worked closely with Slab Sharks to fine-tune the software to meet their needs.

When we asked Karn if he’d recommend Heystack to others, he didn’t hesitate. “It’s game-changing,” he said. “It’s easy to use, the learning curve is small, and it helps businesses grow from day one.”

Looking ahead, Slab Sharks has no plans to slow down. They’re aiming to boost weekly listings from 10,000 to 15,000–20,000 items, and they’re adding a Saturday TCG-specific auction to their lineup.

The partnership between Slab Sharks and Heystack shows how the right technology can completely transform a business and allow it to reach its goals.

If you’re interested in working with Heystack, reach out to us at Heystack.tech.

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