SortStack
Built for mailing houses

Stop paying $400/list for
manual data entry.

Your clients send messy spreadsheets. You need them parsed, sorted, and print-ready. SortStack does it in 60 seconds with 100% accuracy, verified and auditable.

Sound familiar?

Clients send you garbage data

Every list is different. One column, five columns, addresses jammed together, missing postal codes, PO Boxes mixed with street addresses. Your team spends hours cleaning it manually.

Manual parsing kills margins

At $300-500 per list for a data clerk, list processing is your least profitable service. But clients expect it included. You can't charge enough to make it worth the labor.

Staff turnover means retraining

Every new hire takes weeks to learn the edge cases. What does STN mean? How do you handle two-word cities? Where does the building name end and the address begin?

One mistake can cost a client

A missed address means undelivered mail. A wrong postal code means returns. Your reputation depends on 100% accuracy, but humans make errors at scale.

SortStack fixes all of this.

Upload your client's messy file, tell SortStack what columns you need, and download a perfectly parsed, verified spreadsheet.

Parse any mailing list format in 60 seconds
100% accuracy with two-way verification proof
Handles Canadian + US addresses natively
PO Boxes, rural routes, ATTN/C/O lines extracted automatically
Custom templates for recurring client formats
Verification report you can share with clients
Save $300-500 per list vs manual processing
No training needed: describe what you want in plain English

The math is simple.

Manual parsing
$400
per list (avg)
SortStack
$8-49
per list (depending on size)
You save
90%+
on every single list

Process 10 lists a month? That's $3,500+ saved. Every month. Forever.

Upload your hardest list. Free.

500 rows free. No credit card. If it doesn't handle your messiest data, it's not ready.
We think it is.

Try SortStack Free