eCommerce ﹥ E-commerce agency
Looking for an e-commerce agency? Meet your e-commerce team.
Flatline is an e-commerce agency in Amsterdam for brands that sell online, in stores and to other businesses. Strategy, store build, integrations and marketing sit with one team, so growth does not stall between agencies. Mason Garments, Malelions and OGÉR work with us.
Shopify Platinum Partner · 2× Agency of the Year
Why Shopify Plus
Every channel, one platform.
Your online store, retail stores, international markets, B2B and social selling run from one back office: one catalogue, one customer record, one checkout. No sync jobs between systems, and the same catalogue feeds AI shopping channels.
Results
Built to convert from day one.
A new store only pays off when the numbers move. Shopify’s checkout, speed and payment options do much of that work out of the box. We build the store, the data and the tracking around them, and keep improving conversion after launch.
Example dashboard for illustration, not client data.
36
36
%
Up to 36% better checkout conversion than competing platforms, and 15% better on average.
Source: Shopify, checkout study (2023)
76
76
%
of Shopify stores have good Core Web Vitals on mobile, against 35% on Magento and 35% on WooCommerce.
Source: HTTP Archive, Web Almanac 2025
50
50
%
Up to 50% higher conversion with Shop Pay than with a guest checkout.
Source: Shopify (2023)
Brands we build and grow
How we work
(01)
Audit and strategy
We look at your store, data, integrations and marketing, and agree on what to fix first and what it has to deliver.
(02)
Design and build
Your store on Shopify or Shopify Plus, on our starter theme or a custom design, with checkout, markets and B2B set up the way you sell.
(03)
Integrate and launch
ERP, PIM, POS and marketing tools connected and tested, tracking in place, and a launch with the team on standby.
(04)
Grow
CRO, Klaviyo email and SMS, and paid media, measured against the goals from step one.
Book a free strategy call
Tell us where your store is today and where it has to go. An e-commerce specialist reads every request and replies with a concrete next step, such as a short call or a first look at your current setup.
