11.1.2024

Anna Kuusniemi-Laine and Lia Heasman to expand C&S’s corporate sustainability service

The corporate world has been discussing sustainability for years, and it is an increasingly integral part of business operations. In the coming years sustainability will permeate the strategy, business practices and value chains of companies, which are required to increase their efforts to mitigate their adverse environmental and human rights impacts.

‘The regulatory framework of corporate sustainability is taking shape at a rapid pace, and companies are continuously faced with new requirements. Emphasising sustainability in marketing is no longer enough – instead, companies need to take concrete action on a strategic level. With this in mind, we are expanding our offering in corporate sustainability in order to better serve our clients,’ says Anna Kuusniemi-Laine, Partner and head of the new ESG & Corporate Sustainability service.

The focal points of this new service will be strategic sustainability advice, ESG due diligence (ESGDD) and ESG questions relating to transactions, private equity, financing and management liability. The service covers corporate sustainability matters related to marketing, corporate governance and compliance as well as contract projects and anti-corruption guidelines. Our experts help companies in competition law analyses of ESG-linked partnership arrangements and sustainable procurement projects. Together with our environmental and energy lawyers, the team can also offer a wide range of services for any renewable energy projects, and when strengthened with our experts in employment law and data protection, the team provides versatile solutions to support the equality and diversity work of work communities.

‘The duty of care, included in the Corporate Sustainability Due Diligence Directive, and the new sustainability reporting requirements pose a real challenge to companies,’ Anna says. ‘The ESG & Corporate Sustainability service supports our clients in complying with ESG regulation and implementing their duty of care. Thanks to our full-service offering, clients have a one-stop access to all business law services relating to corporate sustainability.’

Experienced ESG expert Lia Heasman to develop the new service

The ESG & Corporate Sustainability service will be further strengthened in mid-January as Lia Heasman joins Castrén & Snellman as Counsel. Lia has over ten years of experience in business-driven ESG work as well as in the development of human rights and responsible supply chains. Most recently, she was the Director of ESG Transaction Services of an international corporation.

‘Lia’s main focus will be on developing the ESG & Corporate Sustainability service. In client work she is the natural choice in ESG matters related to transactions, private equity and financing as well as ESGDD work,’ says Anna.

Significance of ESGDD on the rise

‘Companies used to think of ESG as a reputational aspect, but these days it has become a mandatory part of business operations. EU regulation has increased in recent years, and the required minimum level for sustainability is set really high. Even this minimum level requires systematic work from companies, not to mention bringing corporate sustainability to a strategic level that surpasses it,’ says Lia Heasman.

The new Corporate Sustainability Due Diligence Directive extends companies’ liability to the negative impacts of their value chains. In addition, the efforts and results of companies in tackling the adverse environmental and human rights impacts of their operations are made visible by sustainability reporting under the Corporate Sustainability Reporting Directive. Companies are faced with calls for increasingly ambitious sustainability work from all directions, which means that company management will have to work hard and embrace change.

‘The significance of ESGDD work will increase also in Europe in the coming years. The way in which a company plans its ESG work and minimises its adverse environmental and climate impacts can directly affect the company’s value. In addition, investors and financiers are increasingly particular on who they work with. Soon conducting an ESGDD report will be as essential as reporting on finances and taxation,’ Lia summarises.

Sustainability will extend to all aspects of business operations in the coming years

The amount of regulation is on the rise, and transparent and systematic ESG work will increase a company’s value. What do our experts see in the future of corporate sustainability?

‘Sustainability used to be something to dabble in during prosperous times and economic upswings, but it has become such an integral part of business operations that companies promote it also in slower financial periods. Companies should keep an eye on regulatory development as it will keep advancing even during recession,’ Lia states.

Our experts predict that sustainability, like digitalisation, will extend to all aspects of business operations. An increasing number of company executives, owners and experts will have to know how sustainability is reflected in their own work and what their role is in promoting sustainability goals. This, together with evolving ESG regulation, will bring European companies to a whole new level in sustainable business.

‘It is paramount that company executives and owners have a deep understanding of what sustainability and the duty of care, among other things, mean to the company. Pain points must be faced head-on in order to be fixed. While no-one is perfect, the level of ambition should be higher than ever before,’ Anna and Lia sum up.

Latest references

We advised Foundation Clinic in connection with its funding round backed by a group of prominent Finnish technology entrepreneurs and investors, including founders behind Supercell and Wolt. Foundation Clinic is a Finnish healthcare company developing a new approach to private healthcare focused on preventive, data-driven and continuous care. The company aims to combine comprehensive health data with ongoing medical care to identify and address health risks at an early stage.
Case published 29.10.2026
We advised Delta Capacity AG in a project financing of two battery energy storage systems (BESS). The financed projects are among the largest BESS developments in Finland to enter construction with 250 MW / 600 MWh combined capacity. The financing was provided by Société Générale with support from Finnvera. Construction of both projects, located in Lapinlahti and Teuva, has already begun and the commercial operations are targeted to commence in late 2027 with partial tolling agreements already in place for both assets. The project in Lapinlahti is executed in partnership with Covenergo, while the project in Teuva is executed in partnership with Strioga Family Foundation. Delta Capacity is a Swiss developer of utility-scale battery storage systems. The projects strengthen Delta Capacity’s growing Nordic portfolio and support the flexibility of Finland’s electricity system by adding energy storage capacity, enabling production optimization as well as participation in electricity markets and reserve services.
Case published 28.10.2026
We acted as legal adviser to Martela Corporation in its directed share issue, through which Martela raised gross proceeds of approximately EUR 7.2 million to strengthen the company’s financial position and liquidity and to create headroom for continuing the necessary development and efficiency measures. In connection with the directed share issue, Martela’s unlisted series K shares, which carried greater voting rights, were combined with its listed series A shares. Following the combination, the company has only one share series, which is traded on the regulated market maintained by Nasdaq Helsinki Ltd, with each share carrying one vote and otherwise identical rights. Martela is a Nordic leader specialising in user-centric working and learning environments. With over 80 years of experience, Martela creates the best places to work and offers its customers the Martela Lifecycle solutions which combine furniture and related services into a seamless whole.
Case published 27.10.2026
We acted as legal adviser to Banyan Software on its acquisition of Carus Ferry, a Finland-based provider of reservation, check-in and port operations software for ferry and passenger shipping operators. The acquisition further strengthens Banyan Software’s presence in the Nordic region while providing Carus with a long-term partner to support its continued growth and development. Carus was founded in 1998 and is headquartered in Mariehamn on the Åland Islands, Finland. The company develops mission-critical software for ferry, cruise and passenger shipping operators, covering the full passenger journey from booking and ticketing to capacity management, check-in and boarding. Carus also provides port automation, onboard sales systems and business information tools. The company serves approximately 30 operators across four continents and is the largest vendor by customer count in ferry reservation and departure control. Banyan Software is an acquirer and long-term operator of mission-critical software businesses serving specialised industries. Founded in 2016, Banyan follows a buy-and-hold-for-life approach and supports the long-term growth and development of its portfolio companies. Banyan operates more than 130 portfolio companies across North and South America, the United Kingdom, Europe and APAC. Following the acquisition of Carus, Banyan operates three businesses in the Nordic region.
Case published 20.10.2026