By Christina Bevitori
Published by WooCommerce
Main Facts: The Anatomy of a Modern Direct-to-Consumer Success Story
In the fiercely competitive landscape of digital commerce, direct-to-consumer (D2C) brands frequently find themselves bending their business models to fit the rigid architectural limitations of mainstream enterprise software. Yet, a select few manage to chart a different path, proving that technology should bend to the business, rather than the other way around.
Enter grüum, a flourishing UK-based sustainable personal care brand. Operating out of Stockport, where all of its items are manufactured in-house, grüum has quietly evolved from a niche male-grooming startup into a multi-category powerhouse. Processing up to 80,000 orders per month across approximately 300 stock-keeping units (SKUs), the brand offers a comprehensive catalog spanning skincare, haircare, bodycare, and shaving essentials tailored for all ages and genders.
At the heart of grüum’s commercial engine is WooCommerce. Following a rigorous four-month evaluation in 2023 to determine whether its existing infrastructure could support its aggressive growth trajectory, the brand elected to remain firmly planted in the open-source ecosystem. Managing this high-volume operation with just one full-time developer and a part-time QA tester, grüum demonstrates how lean engineering teams can wield open-source flexibility to drive enterprise-grade results.
Chronology: From a Transnational Startup to a Multi-Category Powerhouse
2016: The Genesis
The grüum story began in January 2016 when former colleagues Simon Leonard, Andy Shaw, Bethanie Sleigh, and George Lagonikas walked away from their corporate jobs. Operating across the United Kingdom and the Netherlands, the quartet pooled their expertise to build an enterprise driven by shared principles: simplicity, affordability, and sustainability.
By September 2016, grüum officially launched to the public with a modest portfolio of roughly 10 products. Initially, the brand targeted male skincare and traditional shaving—a market segment ripe for transparent, no-nonsense formulations.

Expansion and In-House Innovation
As consumer demand shifted toward eco-friendly alternatives, grüum responded by broadening its scope. The company expanded into universal skincare, bodycare, and haircare. Crucially, the brand brought its cosmetic scientists in-house, eliminating the reliance on contract manufacturers. This strategic move allowed grüum’s internal labs to formulate products rapidly, exercise tighter quality control, and iterate on customer feedback at unprecedented speeds.
Among its triumphs is its bestselling shampoo bar, a waterless, sustainably packaged product that has sold millions of units globally. Today, sustainability remains the bedrock of the brand’s identity, characterized by minimal cardboard packaging, waterless formulations, and naturally derived ingredients.
2023: The Platform Audit
By 2023, grüum’s digital storefront was humming at a scale of up to 80,000 orders per month. Recognizing that its operational demands were shifting rapidly, management initiated a comprehensive four-month technical audit. The leadership team systematically evaluated competing enterprise solutions—including Adobe Commerce (formerly Magento) and Shopify Plus—to ensure their infrastructure could handle their next phase of expansion. The verdict? WooCommerce remained unmatched in its ability to support their operational blueprint without forcing radical structural compromises.
Supporting Data: The Economics of Scale and Platform Economics
To understand why grüum chose to stay with WooCommerce, one must look closely at the operational metrics, subscription models, and total cost of ownership that dictate modern e-commerce profitability.
Catalog Complexity and Bundling
grüum manages roughly 300 SKUs, offering customers a diverse purchasing journey. Buyers can acquire single products, sign up for automated subscription schedules, or select complex product bundles. According to co-founder Bethanie Sleigh, these bundles require advanced logic: "We have lots of strange ways we set products up… managing the contents, the pricing, and stock management as a single configurable unit."
Customers can seamlessly add standalone items to bundled soap sets or subscribe to individual items to maximize cost savings. When grüum evaluated alternative platforms, they found that platforms like Shopify Plus could not natively or flexibly handle these idiosyncratic catalog rules without heavy, error-prone workarounds.

The Financial Reality of Subscription Infrastructure
Subscriptions represent a vital revenue pillar for grüum, accounting for 10% of total sales. More importantly, the brand boasts an impressive average subscriber retention tenure of 30 months. At this scale, the choice of subscription architecture carries massive financial implications.
Many hosted SaaS platforms charge a direct percentage-based fee on subscription transactions. Co-founder Simon Leonard laid out the stark financial reality during their platform audit:
"When you’re doing £1 million or £10 million through subscriptions, that soon adds up. You’re instantly shelling out £100,000 a year."
By utilizing WooCommerce Subscriptions, grüum avoids punishing percentage cuts, opting instead for a predictable flat-fee structure that yields extraordinary cost savings as transaction volumes rise. Furthermore, by pairing this with native payment processing via WooPayments, the brand streamlined its financial infrastructure while cutting down on third-party transaction friction.
Resource Allocation and Development Velocity
Maintaining a high-volume e-commerce site typically demands a small army of engineers. Yet grüum achieves its staggering throughput with a lean digital team:
- 1 Full-Time Developer
- 1 Part-Time QA Tester
- 1 Small Content Team
According to grüum’s Chief Technology Officer, tasks that might have previously consumed an entire year on legacy or enterprise architectures could be designed, tested, and deployed within a single month using WooCommerce. This compressed time-to-market dramatically reduces development overhead and operational complexity.

Official Responses: Leadership Perspectives on Open-Source Independence
The decision to reject alternative enterprise platforms was rooted in a steadfast refusal to alter fundamental business logic for the sake of software compatibility.
Reflecting on their flirtation with Shopify Plus, Simon Leonard noted:
"We were going to have to change our business to fit into that business. With WooCommerce, we can make WooCommerce fit around our business and make it work for us. We don’t have to change our principles."
When evaluating Adobe Commerce (Magento), the sheer weight of enterprise overhead became an immediate dealbreaker. While Magento offers deep enterprise customization, it necessitates considerable technical resources. Leonard summarized the absurdity of adopting such an infrastructure for their operational size:
"We weren’t going to employ a team of 20 people running our website."
Instead, grüum empowers its non-technical content creators. Leveraging WordPress-native tools such as the Gutenberg block editor for dynamic page building, Max Mega Menu for intuitive navigation, and Yoast for search engine optimization (SEO), the content team manages product listings, seasonal marketing campaigns, and daily layout updates autonomously.

Bethanie Sleigh emphasizes this operational independence:
"We don’t often need development assistance."
By utilizing these ecosystem tools as intended, grüum’s sole developer is free to focus on high-value customer experience enhancements rather than routine site maintenance.
Implications: Data Ownership and the Future of D2C Sovereignty
Beyond cost savings and configuration flexibility, grüum’s long-term commitment to WooCommerce highlights a critical, often-overlooked asset in modern commerce: data sovereignty.
In an era where third-party platforms frequently act as gatekeepers to customer relationships—limiting data access or forcing brands into walled gardens—grüum views complete data ownership as a non-negotiable security measure.
Simon Leonard addresses this directly:

"If we ever left WooCommerce—I don’t think we will—the data is ours, which is quite different from other subscription platforms. It gives us control over our customers rather than giving them to a third party."
Given that grüum’s average subscriber maintains an active relationship with the brand for 30 consecutive months, preserving pristine, un-siloed purchase histories, behavioral patterns, and personal preferences is paramount. Relying on an external platform that restricts or monetizes access to customer analytics introduces existential operational risk—a risk grüum refuses to take.
A Blueprint for Lean Enterprise Growth
The grüum case study serves as a compelling masterclass for growing e-commerce enterprises. It proves that scaling past tens of thousands of monthly orders does not inherently require migrating to bloated SaaS ecosystems or surrendering profit margins to percentage-taxing subscription models.
By anchoring its operations in the open-source flexibility of WooCommerce, grüum has successfully protected its corporate identity, maintained uncompromising manufacturing and sustainability standards, and retained absolute ownership over its most valuable asset: its customer relationships. For brands feeling boxed in by rigid e-commerce solutions, grüum’s trajectory offers a clear, highly replicable blueprint: build a platform that adapts to your business, not the other way around.

