KLAVIYO

Klaviyo agency that starts with the data model.

Most Klaviyo work is templates and send calendars. We treat Klaviyo as the activation layer on top of your customer data: profiles, events and segments first, flows second. Then we run it as a continuous loop, not a monthly calendar.

You'll recognise this

  • Flows were set up once at launch and nobody has touched the logic since.
  • Segments are built on tags nobody trusts, or on data that never made it into Klaviyo.
  • Custom events from your POS, loyalty tool or subscription app never reached the profile.
  • Reporting says email drives revenue, but nobody can tell you which flow, for which cohort.

What a technical Klaviyo agency actually does

A Klaviyo agency partner is usually judged on templates and send volume. We're judged on the data behind them. Before a single flow is rebuilt we map the profile properties and custom events Klaviyo needs, then wire the sources — Shopify, POS, loyalty, subscriptions, support, warehouse — so segmentation reflects reality. Klaviyo email marketing only compounds when the account can distinguish a first-time buyer from a lapsed VIP without a human maintaining tags by hand.

How to evaluate a Klaviyo agency

Ask three questions. Can they change what flows into Klaviyo, not just what comes out of it? Do they report on revenue per recipient and cohort behaviour instead of open rates? And can they show a flow map with entry, exclusion and exit logic for the whole account? Most Klaviyo experts and ecommerce email marketing agencies answer no to the first. That gap is the difference between a Klaviyo consultant who tunes copy and a team that rebuilds the engine.

What we build

  1. 01

    Data model & event schema

    We define the profile properties and custom events Klaviyo actually needs, then wire the sources: Shopify, POS, loyalty, subscriptions, support and the warehouse. Everything downstream depends on this being right.

  2. 02

    Flow architecture

    Welcome, browse and cart recovery, post-purchase, replenishment, winback, VIP and sunset. Built as a system with clear entry and exit logic, not a pile of overlapping flows fighting each other.

  3. 03

    Segmentation & suppression

    Behavioural and value-based segments that stay accurate as the data changes, plus a deliverability-safe suppression strategy so your sending reputation compounds instead of decaying.

  4. 04

    Custom builds inside your stack

    When Klaviyo can't do it natively, we build it: reverse-ETL syncs from the warehouse, custom catalog feeds, webhook services, back-office tooling your team can operate.

  5. 05

    Continuous operation

    A running hypothesis engine: we ship tests, read the result against revenue per recipient and cohort behaviour, keep what works and kill what doesn't. Not a calendar. A compounding loop.

Weeks 1–4

Data audit, event schema and Klaviyo rebuild

Weeks 4–8

Core flow architecture live and measured

Ongoing

Test loop against revenue per recipient

Tools we build in

We work inside your stack. Every tool below has a breakdown in the Toolverse.

Browse the full Toolverse

Frequently asked

How do you evaluate a Klaviyo agency?
Ask whether they can change what flows into Klaviyo, not just what comes out of it; whether they report on revenue per recipient and cohort behaviour; and whether they can show a complete flow map with entry, exclusion and exit logic. Those three answers separate a template shop from a technical partner.
Are you a Klaviyo agency partner?
We build and operate Klaviyo accounts for DTC, retail and hospitality brands across Europe and the US, and we work in the neighbouring tools too — Braze, Iterable, Emarsys, Bloomreach Engagement and Salesforce Marketing Cloud — so the recommendation is never constrained by a single vendor relationship.
Can two agencies manage the same Klaviyo account?
Technically yes, and it usually causes conflicting flow logic and double sends. If you already have a campaign partner, we normally take the data model, flow architecture and integrations and leave the campaign calendar with them, with one owner for the flow map.
Do you only work in Klaviyo?
No. Klaviyo is the most common activation layer we work in, but we also build in Braze, Iterable, Emarsys, Bloomreach Engagement and Salesforce Marketing Cloud. The approach is the same: data model first, then flows.
We already have Klaviyo set up. Do we start over?
Rarely. We start with a data audit, keep what's working and rebuild the layers that are wrong. Most engagements begin by fixing the event and profile data feeding the account.
Do you handle campaign sends too?
Yes, under growth operations. But we treat campaigns as experiments inside a system, not as a content calendar to fill.
How is this different from a normal email agency?
We're engineers. We can change the data flowing into Klaviyo, not just the templates coming out of it. That includes warehouse syncs, custom integrations and internal tooling.

Start with a diagnostic.

We look at your data, your stack and your cohorts, and tell you exactly what to build first.

Request a call