ESG Services for Law Firms: Market Insights, Trends and Opportunities Based on Data

Introduction: ESG services are becoming a real market for law firms

ESG is no longer a niche topic reserved for large corporations. It has become a concrete demand driver across industries, and law firms are increasingly expected to support their clients with ESG-related services, compliance and reporting. The shift is not theoretical. It is already visible in the way clients ask questions, structure tenders and evaluate advisors.

Based on an analysis of more than 50 small and mid-sized Danish law firms, it is clear that ESG has moved from being a trend to becoming an emerging service category in the legal market.

What is equally clear, however, is that the market is still early. Many firms are experimenting, few have fully structured offerings, and most position ESG as an extension of existing legal services rather than a standalone product.

For business developers, marketing teams and administrative professionals in law firms, this creates a unique window. The question is no longer whether ESG services should be offered, but how they should be defined, packaged and communicated in a way that aligns with both client demand and regulatory development.

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ESG services in law firms: current market penetration and maturity

One of the most important findings is the overall adoption level. Out of the 50 law firms analyzed, 26 firms, corresponding to 52%, offer some form of ESG-related service.

This number alone tells two things. ESG has reached critical awareness in the legal industry, but the market is still far from saturated. Nearly half of the firms are either not offering ESG services or are not clearly communicating them.

The growth compared to just a few years ago is significant. ESG has transitioned from being associated primarily with large international firms to becoming relevant across small and mid-sized practices.

However, availability does not equal maturity. In many cases, ESG is mentioned broadly on websites or embedded within general practice areas such as corporate law or compliance. Only a limited number of firms have developed clearly defined ESG service lines with dedicated positioning and messaging.

This creates a fragmented market where clients often struggle to understand what they are actually buying, and where firms compete on similar, loosely defined offerings.

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ESG services are driven by firm size

The data shows a very clear correlation between firm size and ESG service maturity. Larger law firms are significantly more likely to offer ESG services, and they tend to do so in a more structured and visible way.

Among firms with more than 50 employees, more than 70% offer ESG-related services. In contrast, only around 31% of firms with 11 to 50 employees do the same.

This difference is not surprising. Larger firms have the resources to build internal ESG teams, develop specialized expertise and respond to complex regulatory requirements such as CSRD and due diligence frameworks. They also tend to treat ESG as a distinct business area. Dedicated partners, structured service offerings and clear market positioning are much more common in this segment.

Smaller firms, on the other hand, typically approach ESG as an extension of existing advisory services. ESG is often integrated into broader compliance, employment law or corporate governance work rather than being offered as a standalone product.

This does not mean smaller firms lack relevance. In many cases, they are closer to clients and more hands-on. But it does mean that the market perception of ESG capabilities is heavily influenced by firm size and visibility.

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Regional differences in ESG services across Denmark

Geography also plays a role, although less pronounced than firm size. The data shows variation across regions in terms of ESG service adoption and positioning.

In Copenhagen and Zealand, 28.6% of the analyzed firms offer ESG-related services. In Jutland, the number is higher at 44.4%, while Funen shows the highest share at 50%, although based on a smaller sample size.

The interpretation is important. The lower percentage in Copenhagen does not necessarily indicate lower capability, but rather a different structure. Many firms in the capital are highly specialized and incorporate ESG into broader advisory areas without explicitly branding it as ESG services.

In Jutland, ESG appears to be more directly linked to client demand, particularly from industrial and production companies facing regulatory pressure. This drives a more practical and visible integration of ESG into advisory services.

Across all regions, the trend is consistent. ESG is gaining traction, but the way it is packaged and communicated varies significantly depending on client base, firm structure and local market dynamics.

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What ESG services do law firms actually offer?

One of the most striking findings is how similar the service offerings are across firms. There is limited variation in what is being offered, and a clear pattern emerges in how ESG is defined within the legal context.

The most common ESG-related services include:

• Development of ESG and sustainability strategies
• Advisory on environmental and climate regulation
• HR compliance and social responsibility policies
• Governance structures, anti-corruption and risk management
• Preparation of ESG and sustainability reports aligned with CSRD
• Development of internal policies and whistleblower schemes
• General compliance programs and regulatory alignment
• Supplier due diligence and risk assessments
• Inclusion of ESG clauses in contracts
• Advisory on ESG requirements in public tenders

These services reflect a very specific interpretation of ESG. It is primarily understood as a legal and compliance discipline rather than an operational or strategic transformation area.

Keywords such as “compliance” (29 mentions), “reporting” (15) and “governance” (18) dominate service descriptions across firms.

This has two implications. On one hand, it aligns well with the core strengths of law firms. On the other hand, it limits differentiation, as most firms position themselves around the same regulatory capabilities.

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Different approaches to ESG services depending on firm size

While the services themselves are similar, the way they are delivered varies significantly depending on firm size.

Smaller firms tend to focus on practical implementation. They help clients get started, develop basic policies, understand regulatory requirements and take the first steps toward ESG reporting. The approach is hands-on and closely integrated with the client’s day-to-day operations.

Mid-sized firms move toward more structured offerings. ESG becomes a defined service area with elements of strategy, reporting and governance. These firms often combine legal expertise with workshops, templates and structured processes that can be reused across clients.

Larger firms operate at a different level. They provide full-scale ESG and compliance solutions, often linked to transactions, due diligence and international regulatory frameworks. ESG is integrated into risk management, investment processes and corporate governance at a strategic level.

Despite these differences, the end goal is the same across all segments. Helping clients translate complex ESG requirements into concrete actions and documentation that create both compliance and business value.

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The biggest opportunity: positioning and productization of ESG services

The most important insight from the data is not how many firms offer ESG services, but how they offer them.

Most law firms have the competencies required to deliver ESG-related advisory. The gap lies in how these services are packaged, communicated and differentiated in the market.

In many cases, ESG is presented as a broad capability rather than a clearly defined product. This makes it difficult for clients to understand what they are buying and for firms to position themselves competitively.

For business developers and marketing teams, this is where the opportunity lies.

Firms that succeed in structuring their ESG services into clear offerings, with defined scope, deliverables and outcomes, will have a significant advantage. This includes:

Clear service packages such as ESG reporting support, compliance audits or governance setup
Defined processes and methodologies that can be communicated externally
Strong positioning around specific niches such as CSRD, due diligence or sector-specific ESG
Consistent messaging across website, proposals and client communication

The data shows that the market is still early. That means the first firms to professionalize their ESG offering will be the ones setting the standard.

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The future of ESG services in the legal market

The direction is not uncertain. ESG is moving from being a competitive advantage to becoming a baseline expectation.

New EU regulations such as CSRD, due diligence requirements and increased focus on product responsibility will continue to drive demand for ESG-related legal services.

This will increase both the volume and complexity of client needs. Law firms will not only be expected to interpret regulations but to help implement them in practical, scalable ways.

The data suggests that the next phase of the market will be defined by deeper specialization, stronger collaboration with consultants and auditors, and more structured service offerings.

For small and mid-sized law firms, this represents a turning point. Firms that actively invest in ESG capabilities and positioning will strengthen their relevance. Those that do not risk being excluded from client consideration as ESG requirements become standard.

ESG is no longer just about regulation. It is about relevance in a changing market.

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Key opportunities for law firms entering the ESG services market

The ESG services market for law firms is not saturated. It is early, uneven and still being defined. That is exactly what makes it attractive.

The data clearly shows that while more than half of firms have entered the space, very few have done so with a clear, structured and scalable offering.

For law firms looking to build or expand ESG services, three opportunities stand out.

First, clarity. Clients do not buy “ESG”. They buy outcomes. Firms that define clear deliverables such as ESG reports, compliance frameworks or due diligence processes will stand out immediately.

Second, positioning. Most firms cluster around the same messaging. Compliance, governance and reporting. The opportunity lies in owning a niche. That could be CSRD, supply chain due diligence, governance frameworks or sector-specific ESG advisory.

Third, scalability. ESG is not a one-off advisory area. It is recurring. Firms that build repeatable processes, templates and methodologies will be able to deliver faster, more consistently and more profitably.

The firms that move first in structuring their ESG services will not just win more clients. They will define what ESG advisory looks like in the legal market going forward.

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Ofte stillede spørgsmål (FAQ)

1. What ESG services do law firms offer?

Law firms typically offer ESG services within compliance, governance and reporting. The most common services include ESG strategy development, CSRD reporting, due diligence, ESG clauses in contracts, HR compliance and governance frameworks.

2. How many law firms offer ESG services?

Based on market data across Scandinavian law firms, around 52% currently offer ESG-related services, with adoption significantly higher among firms with more than 50 employees.

3. Why are ESG services important for law firms?

ESG services are becoming essential because clients increasingly require compliance with EU regulations such as CSRD and due diligence. Law firms that offer ESG advisory are better positioned to retain and win clients.

4. What drives demand for ESG advisory in the legal sector?

Demand is primarily driven by regulation, client requirements and risk management. Companies need legal support to navigate ESG reporting, governance and compliance obligations.

5. How can law firms differentiate their ESG services?

Law firms can differentiate by productizing ESG services, creating clear offerings such as ESG reporting packages, compliance audits and governance frameworks, and by specializing in specific areas like CSRD or supply chain due diligence.

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