Case studies

Supporting GANNI to decarbonise their supply chain and become a sustainability leader in the fashion industry

Absolute emission reduction in 2023 (compared to 2021 baseline)
Danish fashion brand GANNI is now a leading voice for sustainability within the fashion industry
Target kgCO2e reduction (absolute) GANNI aims to achieve by 2027

Give GANNI a granular understanding of their carbon footprint and set up a comprehensive decarbonisation strategy to achieve 50% emissions reduction by 2027

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Full carbon footprint, reporting & reduction
Start Date
April 2021

Since 2009, GANNI A/S has been one of the fastest growing fashion companies in the world, a cult favourite with global fans and growing influence.  GANNI has seen several commercial milestones in the past several years, including bringing on a new experienced CEO and a LVMH-linked Private Equity firm as a partner in 2017.  

Over the past years, GANNI started an ambitious program to become a leader in sustainability in the fashion space. Since 2016, GANNI has been tracking their carbon footprint, as well as using traditional compensation to offset their emissions. In 2019, GANNI became a signatory of the UN Fashion Charter for Climate Action, having set a 30% reduction in CO2 emissions per kg of clothing goal in line with UNFCCC Race to zero by 2050.  

GANNI partnered with Plan A in 2021 in order to take the next step –- undertaking a more granular understanding of their emissions and setting up an ambitious carbon strategy to become the most sustainable fashion provider by 2025. Having marked their role as a leading sustainability leader in the fashion industry, GANNI is now underpinned by B Corp and strives to expand upon their current impact via the implementation of a ‘7by27’ program consisting of ambitious reduction targets, five best-in-class focal areas, and employee-led action. 

“As we continue our responsibility journey, we’re learning that fully understanding our impact is key in reducing it. To be able to measure our progress towards reduction targets accurately, we realised we have to step up our carbon mapping efforts and invest in further understanding our CO2 footprint.”
Lauren Bartley
Head of Sustainability

Using GANNI’s internal data and following the GHG protocol methodology,  Plan A calculated GANNI’s entire corporate carbon footprint, with a specific drill down into purchased materials and their emission intensity. These numbers were used in the creation of GANNI’s annual sustainability report

Once GANNI had measured and reported on their emissions, Plan A worked with GANNI to set absolute reduction targets and define the pathways to achieve them. The first approach automatically calculated pathways in line with SBTi to achieve a significant reduction of absolute emissions by 2030. The second approach included a review of GANNI’s proposed insetting strategy so that GANNI can take the next step and embed sustainability into their suppliers, in particular for their Materials, as well as across their value chain. Throughout this process, Plan A has provided ongoing consultancy and engagement services, preparing materials for GANNI’s management and advisory board.

Plan A continues to play a fundamental role in supporting GANNI to achieve their 2027 climate goals through three key impact areas:

  • Annual CCF: Plan A continues to support GANNI with ongoing emissions calculations, reporting and insights, platform support, and personalised carbon accounting support. A recent example is Plan A’s provision of data workshops, custom off-platform emissions calculations, and development of granular data templates to enable GANNI to seamlessly map and calculate their on and off-platform emissions.
  • Decarbonisation strategy: Plan A provides frequent strategy sparring, target-setting consultation and decarbonisation scenario modelling to enable GANNI to achieve their 50% emissions reduction goal by 2027. For instance, Plan A continues to support GANNI to decarbonise its supply chain through in-setting and transitioning to more sustainable materials, where an 80% threshold for the use of preferred materials for commercial use has been introduced in 2024. 
  • Assessing project impact: Plan A continues to play a key role in calculating the impact of GANNI’s innovative in-house projects (usually carried out in pilot project form) – such as carbon-insetting, transportation decision-modelling, , fibre-to-fibre recycling and their ‘fabrics of the future’ project. 


Working with Plan A over the past three years, GANNI has shown substantial progress and marked themselves as a pioneering sustainability leader in the fashion industry through a 7% emissions reduction in 2023 compared to their 2021 baseline.

Leveraging the platform’s automation of GANNI’s data input, emissions calculations, and external reporting, GANNI continues to be able to leverage flexible emissions calculations in line with quarterly reporting and communications. Meanwhile, Plan A’s personalised decarbonisation services have enabled GANNI to onboard 5 suppliers in total to their carbon insetting initiative, introduce transportation pilots to lower air freight emissions, and lower their waste through fibre-to-fibre recycling initiatives.  

Beyond Plan A’s collaboration with GANNI to embed industry-leading sustainability across their value chain by 2025 and become a leader in their industry, GANNI has been recognised by B Corp and continues to expand upon their impact through 2027 – reflective of their commitment to not merely being a signatory to the UN Fashion Charter. 

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