Four Sigmatic Taught the World to Drink Mushroom Coffee. Anatta Helped Its Website Sell It.

“Anatta is right for a brand that's looking for a long-term partnership. The eCommerce landscape is ever-changing — and a good partner is worth investing in.”

Screens from the Four Sigmatic storefront

Impact

Bounce Rate Down 90% on a Sub-Second Site
Anatta's PWA launch cut load times to under a second. Following the launch, bounce rates fell 90% as the education-heavy experience became a fast, conversion-ready storefront.
Email Conversion Up 50%
A full email platform migration and retention-stack rebuild lifted email conversion rates by half, turning the brand's educational content engine into a revenue channel.
A 6-Year Partnership, Proven in 90 Days
What began as a 90-day trial that scored conversion and AOV gains compounded into six years: 2 replatforms, 3 redesigns, 2 rebrands, 22 product launches, and 240+ CRO tests.

The Challenge

The Website Built the Category, But Couldn't Sell It

When Four Sigmatic launched in 2012, the mushroom coffee category didn't exist, so the value proposition needed explaining. The brand built its early growth on exactly that. Education-first content taught a skeptical market what functional mushrooms were, why they belonged in a morning routine, and why Four Sigmatic's sourcing made them credible. It worked. The category grew, the brand established itself in the US, and the once-novel proposition became a movement Four Sigmatic was leading.

Which is precisely when their website became a problem:

  • The site was still teaching customers who were ready to buy. The experience was architected for educational, content-heavy journeys. But a growing number of visitors came to the site already ready to buy. What they found instead was friction.
  • The brand’s momentum was outrunning its funnel. Traffic and awareness were compounding faster than the site could translate them into revenue; the growth and conversion engine had come apart.
  • The foundation underneath everything was unstable. Development ran through freelance developers, each with their own coding style. The inconsistency surfaced as instability and outright site crashes when traffic spiked.
  • The ambitions exceeded the model. International expansion, new product categories, a faster launch cadence — Four Sigmatic’s roadmap couldn’t be built by a rotating cast of freelancers patching a fragile site.

Four Sigmatic needed to transition its digital experience from education to full eCommerce optimization without abandoning the content equity that built the brand. And it needed a team, not a collection of contractors, to do it.

We were using freelance developers. They were all writing different styles of code, which resulted in site crashes. When something broke, I couldn’t get them to fix it early enough. We transitioned to Anatta, a dedicated agency, for security. Basically: from chaos to clarity — and for me, the ability to sleep at night.
Markus Karjalainen portrait
Markus Karjalainen
Chief Brand Officer, Four Sigmatic

The Solution

A Ninety-Day Trial Turns into Six Years of Success

A Team Where Freelancers Had Been

Four Sigmatic’s engagement with Anatta was de-risked with a 90-day trial against a simple test: move the numbers. The early work delivered. Measurable gains in conversion rate and average order value instilled the confidence Four Sigmatic needed. Following the 90-day window, the trial ended — but the partnership would continue for six more years.

Now, in place of a rotating cast of contractors, Anatta assembled dedicated teams that aligned with Four Sigmatic’s goals. The shift replaced inconsistent code and firefighting with a single accountable standard.

In less than 90 days, the Anatta team got us results. Not just any results, but results on conversion and AOV. They’re now deeply integrated into our team, and we feel like one team now.
Markus Karjalainen portrait
Markus Karjalainen
Chief Brand Officer, Four Sigmatic

The Conversion Turn: A PWA Built for a Market That Stopped Needing Convincing

The defining early move was Anatta's launch of a Progressive Web App that rebuilt Four Sigmatic's storefront for speed and immediacy. Load times dropped below one second, and following the launch, bounce rates fell by 90%. Visitors who once landed on a heavy, education-first experience now met a site as fast as their intent.

Before
The Four Sigmatic storefront before the redesign
And after
The Four Sigmatic storefront after the redesign
Anatta uniquely shines in their ability to balance wacky ideas and putting them into practice. They help you filter ideas, and they encourage creativity, but they balance this with their practical understanding of technology.
Kaitlin Holiday portrait
Kaitlin Holiday
eCommerce and Data, Four Sigmatic

Scaling What the Foundation Earned

With the domestic experience converting, the partnership turned to scale. An international site overhaul and membership campaigns carried the brand abroad. A redesigned membership and account management experience increased retention. And a rebuild of the data and reporting layer improved reporting accuracy by 75%, so decisions at scale ran on numbers the team could trust. Upgraded PWA infrastructure and six holiday seasons of campaign support rounded the arc, including a holiday season that outsold every one before it.

Four Sigmatic’s international storefront
We went from focusing on getting new customers to focusing on keeping customers. It’s been a mental shift. Anatta has been very good at helping us work on a more holistic roadmap for retention.
Markus Karjalainen portrait
Markus Karjalainen
Chief Brand Officer, Four Sigmatic

The Results

Category Leadership, Earned Over Six Years

  • Bounce Rate Down 90% on a Sub-Second Storefront: The PWA launch cut load times to under one second, and bounce rates fell 90%.
  • Email Conversion Up 50%: The rebuilt email and retention stack lifted email conversion rates by half.
  • A 90-Day Trial That Earned Six Years: The partnership proved itself inside its trial window with conversion and AOV gains in the first ninety days, then compounded across six years and six holiday seasons, including a peak season that outsold every one before it.
  • Every Kind of Change, Absorbed: Two replatforms, three site redesigns, two rebrands, 22 product launches across three new categories, 28 app and system integrations, and 240+ CRO tests — all with one accountable partner.
  • A Second Redesign Built for Stability First: Infrastructure stability and scalability led the second redesign, which launched alongside ADA accessibility and GDPR privacy compliance work.
  • Category Leadership, Earned: Four Sigmatic emerged from those six years established internationally and recognized as an industry leader in DTC functional foods and CPG.

Looking Forward

Six years of compounding work left Four Sigmatic with the thing it came for: a storefront that sells as well as the content teaches. The retention roadmap the partnership shifted toward is where the next increment lives.

Four Sigmatic products

Many people who make sites and write code think very linearly. And consumer behavior and brands are not linear. It takes a different mindset. Anatta’s understanding of brand and eCommerce strategy exceeded my expectations.

Tero Isokauppila portrait
Tero Isokauppila
Founder, Four Sigmatic
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