Best CSRD consulting: Large consulting firms vs. freelancers
Find the best CSRD consulting: Compare leading consulting firms and freelancers to meet your CSRD needs.
- Since the Omnibus reform (in force 18 March 2026), CSRD reporting applies only to companies with more than 1,000 employees AND more than €450m net turnover.
- External CSRD consulting helps with the materiality assessment, data collection, reporting and audit preparation.
- Large firms offer global reach; freelancers often deliver more hands-on, cost-effective support for mid-sized companies.
- Specialized sustainability consultancies sit in between: deep expertise, close client relationships, narrower scope.
- Whichever provider you choose, build internal CSRD knowledge in parallel.
The Corporate Sustainability Reporting Directive (CSRD) represents a major expansion of reporting requirements. Companies must now cover environmental, social and governance aspects alongside financials. With the complexity involved and the volume of new requirements, many companies find that internal resources and specific knowledge are not sufficient to meet the regulatory expectations of the CSRD and the European Sustainability Reporting Standards (ESRS).
In this case, bringing in external support from a CSRD consultancy or a specialized freelancer can make good sense.
Since 18 March 2026, CSRD reporting is mandatory only for companies with more than 1,000 employees AND more than €450m net turnover (both criteria must be met). Many companies that were previously expected to report are now out of scope. Member states must transpose the directive into national law by 19 March 2027.
Why can CSRD consulting be useful?
The German version of the ESRS runs to 281 pages. The EFRAG list of ESRS data points contains over 1,100 quantitative and qualitative data points. Add EU taxonomy on top of that. Preparing an auditable CSRD report alongside day-to-day business is a major undertaking. The sustainability report must be treated like the financial report and audited by an external auditor.
Tools such as the ESRS data points template provide structured support, but professional CSRD consulting goes further. A good consultant brings know-how and capacity to comply with legal requirements and helps integrate sustainability strategy effectively.
What is a management consultancy or freelancer?
A management consultancy is a service offered by experienced professionals or firms to support companies in specific areas such as strategy, management, technology or sustainability.
Freelancers are self-employed consultants who offer similar services on an individual basis. Both consulting firms and freelancers use their expertise and experience to develop tailored solutions that fit the specific needs and goals of the company.
What can CSRD consulting help with?
A CSRD consultancy brings specialized knowledge and practical experience to help companies design and implement their reporting procedures. Specifically, a consultant can support you in the following areas:
- Sustainability strategy: Helping you develop a comprehensive sustainability strategy that is geared towards long-term corporate value.
- Management and implementation: Planning, managing and monitoring sustainability initiatives to ensure they contribute to your goals.
- Double Materiality Assessment: Guiding you through the materiality analysis in 4 steps. The CSRD materiality assessment is also a popular strategic tool.
- Data points and GAP analysis: Identifying relevant data points and analyzing which gaps exist in your data.
- Software selection: Advising on the selection and implementation of CSRD tools for sustainability data management. The CSRD Software Selection Guide is also a useful starting point.
- Data collection: Supporting you in collecting and validating the required data for accurate, compliant reporting.
- Reporting: Producing clear, concise and compliant reports on your sustainability performance.
- Training and capacity building: Building understanding and skills for CSRD reporting within your team.
- Stakeholder communication: Developing communication strategies so your sustainability efforts reach the right audiences.
- Risk management: Identifying and managing risks from sustainability issues, in particular through the double materiality assessment.
These areas show how versatile CSRD consulting can be. Good consultants help you comply with regulations and integrate sustainability strategically into your business model.
When is CSRD consulting most useful?
CSRD consulting is particularly useful when your company feels overwhelmed by reporting requirements or lacks internal capacity. It also makes sense when you want reports that go beyond legal compliance and align with your strategic goals.
Consulting is also helpful during significant organizational change or at the start of CSRD implementation. In the long run, external guidance can help your company become a leader in sustainability, which improves your reputation and can bring real financial and operational benefits.
One important note: every company should also build internal CSRD skills over time. This can happen through targeted CSRD training for existing employees or by hiring experienced talent with CSRD knowledge.
Which CSRD consulting firm is the best?
Verdantix, an independent research and consulting firm, regularly publishes a detailed market analysis of the best ESG and sustainability consultancies. The Verdantix Green Quadrant 2024: ESG and Sustainability Consulting is a key assessment tool. Firms are positioned in a coordinate system based on capabilities and market momentum.
The evaluation shows that firms such as ERM, BCG and Deloitte are among the leading consultants. These firms sit in the top right quadrant, indicating strong capabilities and growth in sustainability consulting.
Keep in mind that the firms Verdantix evaluates are large organizations. The analysis does not cover niche providers or freelancers, who may be a better fit for some companies.
Categories of CSRD consulting firms
The range of sustainability consultancies supporting CSRD is broad. It spans large management consultancies, specialist sustainability consultancies, freelancers and independent consultants. Each category has different strengths, depending on what your company needs.
Large management consultancies
Large management consultancies offer a wide range of services across many industries and issues, well beyond sustainability. They have extensive resources, a broad global expert network, and considerable experience with large and multinational companies.
Advantages and disadvantages
- Extensive experience with regulatory requirements and complex projects
- Broad range of expertise and services enabling an integrated advisory experience
- Global presence for consulting across different regions
Possible disadvantages to consider:
- Often higher costs compared to smaller consultancies or freelancers
- Possibly less personalized service (template-driven approach)
- Focus can shift towards slide decks rather than direct hands-on support
Examples of large management consultancies
Large consulting firms can be split into strategy consultancies and full-service consultancies.
Strategy consultancies are expanding into sustainability consulting with services for CSRD-compliant strategies and reports:
- McKinsey: Offers comprehensive sustainability consulting solutions helping companies combine economic and ecological goals.
- Boston Consulting Group: Integrates sustainability deeply into the strategic direction of its global clients.
- Bain & Company: Focuses on creating sustainable economic value as the core of its consulting work.
The large full-service consultancies, often called the "Big Four," offer a wide range of services including audit (also relevant for CSRD), tax consulting, risk management and financial consulting:
- Deloitte: The largest of the Big Four, offering comprehensive CSRD services with a global expert network.
- PwC: Supports companies in regulatory compliance and strategic CSRD implementation. PwC also published a CSRD software study in 2023.
- Ernst & Young: Promotes transparency and sustainability in corporate reporting through its global network.
- KPMG: Offers specialized sustainability consulting services targeting CSRD requirements.
Specialized sustainability consulting
Specialized consultancies focus exclusively on sustainability and bring deep knowledge in areas such as sustainability strategy and CSRD implementation.
Advantages and disadvantages
- In-depth expertise in specific sustainability areas
- Tailored solutions for the specific needs and challenges of your company
- Dedicated attention and often a close client relationship
Possible disadvantages to consider:
- More limited resources and reach compared to large consulting firms
- Potentially narrower range of services
- Often local rather than global coverage and knowledge
Examples of specialized sustainability consultancies
Specialized sustainability consultancies vary in their portfolio. What they share is that their services are centered on sustainability. Examples include:
- envistra: Specializes in environmental and sustainability consulting, providing precise solutions to improve environmental performance.
- fors.earth: Supports organizations in strengthening their future viability and driving the transition to a sustainable economy.
- ERM: A global provider of environmental and sustainability consulting services supporting companies across the business life cycle.
- SLR: Provides technical and strategic consulting designed to optimize environmental and sustainability performance across industries.
- Pulswerk (AT): Based in Austria, focuses on sustainable buildings and energy efficiency.
- Compass & Spine: Specializes in Corporate Social Responsibility (CSR), helping companies integrate CSR into their business models.
Freelancers and independent CSRD consultants
Freelancers and independent consultants offer flexible and often cost-effective consulting, particularly well-suited to small and medium-sized companies or specific projects. Many freelancers have built their expertise and toolset at large or specialized consultancies before going independent.
Advantages and disadvantages
- Cost efficiency and flexibility in service delivery
- Hands-on mentality and direct approach instead of slide-heavy deliverables
- High level of personalization and direct communication
- Fast availability and scalable services as needed
Possible disadvantages to consider:
- Limited capacity, which can make handling large or multiple projects difficult
- Variable experience and quality depending on the individual consultant
- Often local rather than global coverage and knowledge
Examples of freelancers with CSRD specialization
Individual CSRD consultants provide targeted support without heavy administrative overhead. Individual consultants often work in networks or maintain strong professional contacts to handle larger projects.
- Alexander Spahn (CSR Tools): Having worked as a management consultant at Deloitte for over 5 years, I support clients as a certified CSRD consultant in the implementation of the double materiality assessment, the derivation of reportable data points, reporting and the selection of suitable ESG software. I also create tools and templates for reporting. Need support?
Please feel free to contact me
- Thorsten Soll: An interim manager with 17 years of experience in finance, supporting clients in setting up and optimizing processes, structures and instruments in the commercial area. As a certified sustainability consultant, he provides hands-on support to SMEs in the preparation of sustainability reporting.
- Kathrin Jansen (Cambria Consulting): Founder of Cambria Consulting, she helps people understand sustainability and supports companies in combining sustainable knowledge with entrepreneurial action. Her focus is CSRD implementation, sustainability strategy development and sustainability management. She draws on over 15 years of professional experience in organizations and as a management consultant.
Other consulting firms in the CSRD area
Not all consulting firms fit neatly into the three categories above. A few more worth knowing:
- Accenture: A leading global consulting firm focused on technology, providing innovative solutions for sustainability and ESG goals worldwide.
- Metafinanz: A transformation consultancy in the finance and insurance sector, supporting companies in implementing sustainability strategies.
- Mittelstand | Partners: Specializing in transformation for mid-sized companies in Germany, integrating sustainability into strategy and business processes. A notable feature: a CSRD audit by a "Sustainability Auditor IDW" accompanying report preparation provides additional certainty.
Each category has specific strengths and areas of application. Companies can find the right match based on their size, industry and specific requirements.
Our Excel template for performing the double materiality assessment is used by SMEs and by several of the CSRD consultancies and freelancers listed above. Structure your materiality process from the start.
Numerous consultancies and freelancers are currently advertising themselves as CSRD experts, since it is a lucrative field with high demand. With so many providers available, it can be hard to separate strong from weak. For companies with little experience working with external consultants, this checklist for selecting a CSRD consultancy can be helpful. The overview of CSRD assistance is also a useful collection of resources for effective CSRD implementation.
Frequently asked questions about CSRD consulting
Who still needs CSRD consulting after the Omnibus reform?
Since 18 March 2026, CSRD reporting is mandatory only for companies with more than 1,000 employees AND more than €450m net turnover (both criteria apply). If your company is in scope, the complexity of the ESRS and the audit requirement make external consulting valuable. Even companies now out of scope may benefit from consulting to prepare voluntarily using the VS (Voluntary Standard), which is based on the VSME and is being broadened to cover companies outside the CSRD scope.
When does it make more sense to hire a large firm vs. a freelancer?
Large firms are a strong fit for multinational companies with cross-border operations, complex group structures or where CSRD work needs to integrate with audit or tax advisory. Freelancers and small specialized consultancies tend to offer a better fit for mid-sized companies: lower cost, direct communication, faster response and a more hands-on approach. For a first materiality assessment, a freelancer or a specialized tool is often the most practical starting point.
Can I prepare for CSRD without hiring a consultant?
Yes, especially with the revised ESRS expected to cut mandatory data points by over 60%. Tools like the materiality analysis template or the ESRS data points template cover a large part of the work. Many companies use a hybrid approach: tools for the structured work, a consultant for review, audit preparation or complex topics like the double materiality assessment.
How do I choose the right CSRD consultant?
Start by defining your scope: Which reporting year applies to you? Do you need help with strategy, data collection, reporting or audit preparation? Then look for consultants with verifiable CSRD references and sector experience. The checklist for selecting a CSRD consultancy covers the key selection criteria in a structured format.
