Partner
Auditor, CPA (U.S.), Graduate in Business Administration, Head of Accounting, Reporting & Process Advisory
Environmental, Social & Governance | ESG
We advise on sustainability holistically and make it a management priority. Our ESG team provides interdisciplinary and comprehensive support on your path to sustainable success. Together, we pave new ways to firmly embed sustainability in your company and generate added value. With foresight, expertise, and proximity, we shape the future – personally, interdisciplinarily, and globally.
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Sustainability is not a trend, but a central success factor for Mittelstand companies. New regulatory requirements from CSRD, ESRS, or supply chain laws, as well as demands from stakeholders such as customers, employees, and financial partners, are fundamentally changing business models, value chains, and financing conditions. At the same time, they open up opportunities to actively shape the future and secure competitive advantages.
We guide companies step by step to holistically understand sustainability and embed it as a management priority – practically, interdisciplinarily, and at eye level. Instead of standard solutions, we develop tailored approaches that combine regulatory certainty with strategic added value. Together with you, we explore new territory, pave the way, provide orientation. So that sustainable success doesn’t remain an add-on, but becomes part of your DNA.
“We support you in your sustainable transformation – not just singularly focused on auditing or reporting, but within a holistic ESG context, embedded in a meaningful sustainable corporate strategy.”
Dr. Christian Maier
Partner, Head of Sustainability Services
Our Services
Skip SectionESG strategy
A clear strategy in the area of ESG and sustainability is crucial for sustainable business success today. CSRD, ESRS and stakeholder requirements are increasing the pressure for transparency and reporting – and making sustainability a management issue. Without a clear strategy and direction, companies face sanctions, reputational damage, competitive disadvantages and the loss of talent. With a well-thought-out ESG strategy, companies can secure their future, strengthen their resilience and clearly position themselves for change. Together with you, we develop ways to tap into opportunities and align your company for the future.
Together we shape your ESG strategy
- Assessing the status quo: With a maturity analysis, we provide orientation and identify potential for the next step.
- Developing a target vision: We define the level of ambition, sustainability goals and responsibilities – clearly and practically.
- Planning measures: Concrete steps and milestones pave the way for implementation.
- Ensuring integration: We embed ESG in business strategy, governance and management processes.
- Accompanying change: Through communication and change management, we strengthen acceptance, impact and sustainable success.
Dr. Christian Maier
Partner
Auditor, CPA (U.S.), Graduate in Business Administration, Head of Accounting, Reporting & Process Advisory
ESG reporting
With the CSRD, sustainability reporting becomes a regulatory requirement for affected companies and a voluntary option for others. Sustainability reporting frameworks are evolving dynamically: CSRD, ESRS, EU taxonomy, ISSB, GRI and more. We keep track of developments for you, assess their impact and translate changes into clear implementation steps. From readiness checks and materiality analyses to software-supported reporting, we pave the way for efficient processes, transparent insights and audit-proof reports.
We accompany you along the way
- CSRD implementation: Meet regulatory requirements, implement reporting processes and ensure audit compliance
- Applying EU taxonomy: Implementing requirements in a practical manner
- Design sustainability reports: efficient, audit-proof, future-oriented
- Manage processes & data: optimise workflows, select and implement software, manage with ESG data
- Set up control systems: increase reliability, clearly define roles and responsibilities
Dr. Christian Maier
Partner
Auditor, CPA (U.S.), Graduate in Business Administration, Head of Accounting, Reporting & Process Advisory
Sustainability Audit
Credible sustainability reports and key performance indicators are crucial for creating transparency about your own ESG performance. A statutory or voluntary audit strengthens credibility among stakeholders, builds trust among investors, customers and employees – and increases acceptance in the market. Particularly when introducing new reporting processes, a project-accompanying audit offers real added value: it ensures efficiency and robust structures and supports the professional integration of sustainability into corporate management.
We accompany you on your journey
- Project-accompanying audit: when introducing sustainability reporting in accordance with standards such as CSRD, VSME or GRI
- ESG covenant audits: auditing sustainability indicators in financing agreements
- Auditing sustainability reports: voluntary or legally required
- Auditing selected processes and indicators: individual auditing of selected processes and indicators for process optimisation or fulfilment of stakeholder requirements
Dr. Christian Maier
Partner
Auditor, CPA (U.S.), Graduate in Business Administration, Head of Accounting, Reporting & Process Advisory
Sustainable supply chain
Responsibility in the supply chain is not only a legal obligation for certain large companies, but is increasingly becoming a central component of sustainable business practices – for companies of all sizes. With LkSG, CSDDD and EUDR, the legal requirements for diligence, transparency and control of international supply chains are increasing. Our interdisciplinary, international team provides you with practical support – from risk analysis and risk management to supplier due diligence, supplier codes of conduct and crisis communication to the legally compliant implementation of European requirements. In this way, we provide guidance, reduce risks and design sustainable supply chains.
Our focus areas
- CSDDD – EU Directive on corporate due diligence for sustainable supply chains
- LkSG – Implementation of the Supply Chain Due Diligence Act
- EUDR – EU Deforestation Regulation
- Supplier assessment – identifying and managing risks and exploiting opportunities
Dr. Christian Maier
Partner
Auditor, CPA (U.S.), Graduate in Business Administration, Head of Accounting, Reporting & Process Advisory
Daniel Roßbach, LL.M.
Manager
Attorney at Law (Germany), Certified Compliance Officer (TÜV Süd)
Energy transition & decarbonisation
The path to a carbon-neutral industry requires new approaches: from emissions trading to e-mobility, from green leases to power purchase agreements. We support companies in combining environmental responsibility with economic success – with practical solutions, legal certainty and an international perspective.
Our services at a glance
- Decarbonisation & energy efficiency: greenhouse gas accounting, emissions reduction, energy audits and measures in accordance with DIN EN 17463
- Law & regulation: advice on energy tax law, subsidy law, sustainability in construction and green leases
- Emissions trading & CBAM: national and international support and implementation of the CO₂ border adjustment mechanism
- Power purchase agreements: Drafting, negotiating and implementing sustainable energy supply contracts
- Transition to e-mobility: Strategies, subsidies and integration into existing structures
Environmental law
The EU has set itself an ambitious goal of achieving climate neutrality by 2050. Emissions are to be reduced by at least 55% by 2030 – a target that poses major challenges for companies. New laws and regulations are constantly changing energy, environmental and planning law. Our interdisciplinary team keeps track of developments for you, assesses their impact and translates complex requirements into clear, feasible steps. This enables you to ensure legal compliance, make the most of the scope available for your projects and actively shape the transformation to a sustainable economy.
Our focus areas
- Renewable energy law: We provide legally compliant support for projects – from wind and solar energy to innovative solutions
- Planning and approval law: We provide guidance on the process and pave the way for efficient approvals
- Energy law: We advise on market rules, grid connection and energy taxes, and ensure your ability to act
- Environmental law: We provide support with environmental regulations, emission protection and sustainability requirements.
Victoria von Minnigerode
Associate Partner
Attorney at Law (Germany), Specialist lawyer for administrative law
Green Claims & Litigation
Sustainable products and transparent communication, production and packaging are now decisive factors for competitive success. At the same time, EU and national legislators are tightening regulations: from resource-intensive key sectors to the upcoming Green Claims Directive. Companies must clearly substantiate environmental claims – accusations of greenwashing are rapidly increasing and are increasingly leading to legal disputes. Our interdisciplinary team supports you throughout the entire product life cycle – from research and development to disposal – and provides guidance, legal certainty and sustainable success.
Our consulting services at a glance
- Reviewing and designing product labels: developing legally compliant seals, logos, texts and graphic representations
- Securing advertising claims: clearly substantiating claims such as ‘climate neutral’, ‘energy efficient’ or ‘environmentally friendly’
- Supporting regulatory compliance: advising on the Green Claims Directive and EU initiatives in key sectors
- Defending against greenwashing allegations: Representation in disputes with competitors, authorities or consumer protection agencies
- Managing communication: Professional support in crisis and press law in the event of greenwashing risks
Sustainable finance
Transparency is key in a sustainable financial world. Investors and regulators demand clear disclosure of ESG factors – driven by EU requirements such as SFDR, EU taxonomy and CSRD. At the same time, impact investments, green bonds, social loans and ESG-linked loans open up new opportunities to build trust and secure capital for sustainable growth. Our interdisciplinary team supports you in all matters relating to sustainable finance – from subsidy consulting to portfolio strategy. We translate complex requirements into feasible steps and work with you to design financing solutions that are regulatory compliant and strategically forward-looking.
Our focus areas
- Subsidies & financing mix: identifying opportunities, assisting with applications, optimising structures
- Sustainable portfolios: reviewing and evaluating financial products in accordance with disclosure and taxonomy regulations
- Fund structuring: designing and structuring funds in accordance with disclosure regulations
- Impact investments: planning, managing and demonstrating impact in accordance with ESG standards
- Green/social bonds & ESG loans
Maria Ueltzen
Associate Partner
European Graduate Administrative Manager
ESG in corporate transactions
ESG factors can be decisive in transactions – legal requirements are becoming stricter and investors are demanding transparency. ESG due diligence provides guidance, minimises risks and ensures compliance. This enables companies to hedge transaction risks, create clarity for post-merger integration and lay the foundation for sustainable success. Tailored to your transaction, we provide interdisciplinary advice on all relevant ESG areas and, if necessary, also involve external technical consultants – this includes, in particular, ESG due diligence (financial, legal, management of ESG due diligence), company valuation with clear analysis of ESG value drivers, and purchase agreement drafting and negotiation.
Our services
- ESG & Deals: Identifying and managing ESG risks and opportunities in transactions
- ESG due diligence: Interdisciplinary review of relevant factors in all ESG areas
- ESG Factbook: ESG story and basis for decision-making for potential investors
- ESG valuation: Determining and strategically positioning company value, taking ESG factors into account
Cyril Prengel
Partner
Certified Valuation Analyst (CVA), EMBA (M&A), Graduate in Business Administration
ESG Taxes & Levies
Sustainability has long been a factor in tax law. EU plastic tax, electricity and energy taxes, and other economic burdens, such as CO2 emissions trading and the European CO2 border adjustment mechanism CBAM, present companies with growing challenges. At the same time, tax incentives open up opportunities that should be exploited. Our interdisciplinary team combines tax expertise – both in the UK and abroad, with the respective country-specific requirements – with ESG know-how and helps you to efficiently fulfil your obligations and secure the long-term benefits of sustainable corporate management.
Our advice for your success
- Electricity and energy tax: comply with regulatory requirements, take advantage of privileges
- Emissions trading and CO2 compensation mechanisms: meeting national and EU-wide requirements, ensuring compliance and economic efficiency
- EU plastic tax: clarifying obligations, recording quantities, submitting reports
- Subsidies: identifying and making targeted use of tax opportunities
- Tax pitfalls and opportunities: e.g. in the field of electromobility
Alexander Schallock M.I.Tax
Partner
Certified Tax Advisor, Specialist advisor for international tax law
Dr. Heidi Friedrich-Vache
Partner
Certified Tax Advisor, Graduate in Business Administration
We are trusted partners and trailblazers on your journey toward sustainable transformation. With interdisciplinary teams, we provide guidance and develop practical solutions for you. This makes sustainability part of your corporate management—for resilience, efficiency, and long-term success.
ESG News
ESG in focus: Our ESG News keeps you informed about current developments—from CSRD & EU taxonomy to supply chains and CO2 accounting. Subscribe now and think strategically ahead!
