Case Study 02 · Interior Design

Purplebox: B2B outreach for interior design that actually gets opened.

A category where most cold email lands in trash. We rebuilt the outbound from the ground up, ICP, data, copy, deliverability, and pushed cold email open rate past 60% with qualified meetings landing on the founder’s calendar.

60%+
Cold email open rate
(industry average: 20–25%)
12%
Positive reply rate
from architects & developers
45 days
From kickoff to first
qualified meetings booked

Why interior design is hard to prospect, and how we fixed it.

B2B outreach for interior design fails for predictable reasons: generic lists, no real point of view in the message, and inboxes that have been burned by mass-blast vendors. We rebuilt every layer.

Layer 1

ICP & data

We narrowed Purplebox’s ICP to specific buyer types, commercial architects, fit-out contractors, and developers with active projects, and built enriched lists with signals like active tenders and recent project announcements.

Layer 2

Deliverability & warmup

Dedicated sending domains, SPF/DKIM/DMARC, paced warmup, and human-paced sending volumes. That is the unglamorous reason the cold email open rate cleared 60% instead of stalling at 18%.

Layer 3

Hyper-personalized copy

Each message referenced a real project, a recent hire, or a visible problem in the prospect’s portfolio. AI-assisted research, human-reviewed copy, not a templated mail merge with a first-name token.

The numbers, plainly stated.

Vertical
B2B interior design & fit-out
Cold email open rate
60%+ sustained
Buyer mix
Architects, developers, contractors
Outcome
Qualified meetings & live project briefs

What we actually shipped.

A full outbound engine, owned by Purplebox, run by Vara Tech. ICP and data refreshed monthly. Sending infrastructure hardened so the cold email open rate stays high instead of decaying after week two. CRM stages and follow-up cadences wired so a reply turns into a meeting without anything slipping.

If you are doing B2B outreach for interior design, architecture, or any visually-driven category, the failure mode is almost always the same: the message looks like every other vendor pitch. Fixing that is design work as much as it is sales work, and that is the layer most agencies skip.

Want this kind of pipeline for your firm?

30 minutes. We will look at your ICP, your current outbound (if any), and tell you honestly whether this approach fits, and how fast we could stand it up.