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Case study · Specialist ID

Two emails a week. 171% more revenue YOY.

Specialist ID sells badge holders, lanyards, and ID accessories to everyone from hospitals to schools. Two emails a week could burn a list to the ground. Instead, this March brought in 171% more campaign revenue than March last year, and kicked off a year-over-year growth streak that hasn't stopped since. Here's why theirs keeps clicking.

The setup

Send more.
Annoy less.

The brand

Specialist ID: ID badge accessories at specialistid.com, with a large base of repeat business buyers on Klaviyo. Offices, hospitals, and schools that reorder constantly.

The work

A twice-a-week campaign calendar rotating through product categories, sent only to a tightly managed engaged segment, with never-clickers and recent buyers suppressed on every send.

The numbers · 2026 vs 2025

Five straight months of year-over-year growth. And counting.

MAR +171% APR +116% MAY +40% JUN +9% JUL +75%
March revenue, YoY
+171%
more campaign revenue than March last year. Month one of the streak below
Click rate
13%
average click rate across 24 spring sends. Every single one above 9%
List health
<0.3%
unsubscribes per send, at two emails a week
March cadence
3x
the sends of last March, with fewer unsubscribes per send

Twice a week, zero burnout.

All numbers tracked in Klaviyo. Streak months compare each 2026 month against the same month in 2025 (July compares July 1–17 in both years); click and unsubscribe rates cover April 17 – July 17, 2026.

The sends

What they looked like.

Specialist ID free shipping campaign email Specialist ID Badge Buddies campaign email Specialist ID bulk-order campaign email

How

What actually moved it.

Only people who read

Every campaign goes to a rolling 90-day engaged segment, not the whole list. Sending to readers instead of everyone is why the click rate sits in double digits instead of the industry's 1–2%.

Ruthless suppression

Never-clickers are suppressed and anyone who bought in the last two weeks is excluded from every send. Nobody gets sold what they just bought, so twice a week never feels like spam.

Product-led cadence

Each send spotlights one category (badge reels, lanyards, visitor management, card printing) so every email is useful to someone specific. The best of them out-earn an average send several times over.

Your turn

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