Carbon management for
professional services firms.
Your clients are asking about your carbon footprint. Your tenders include sustainability questionnaires. B Corp certification requires environmental action. SBS delivers GHG Protocol Scope 3 measurement, B Corp environmental pillar support and client ESG questionnaire responses tailored to the specific characteristics of professional services firms.
Professional services carbon is dominated by Scope 3 — which most firms are not measuring
For law firms, accountancies, management consultancies and financial services businesses, the carbon challenge is fundamentally different from manufacturing or logistics. Scope 1 emissions from direct combustion are minimal. The challenge is Scope 3: business travel by air and rail, employee commuting, purchased professional services, supply chain and, for financial institutions, the financed emissions of investment portfolios.
Most professional services firms are reporting or being asked to report their Scope 1 and 2 emissions — typically straightforward. The commercial pressure is now on Scope 3. Client sustainability questionnaires, B Corp certification, SBTi submission and public sector tender requirements are all pushing firms toward full GHG Protocol Scope 3 measurement. SBS delivers this accurately and efficiently, then builds the reduction strategy and reporting infrastructure to demonstrate progress year on year.
Mandatory, voluntary and emerging requirements
Understanding which frameworks apply to your firm, and when, is the first step to a credible compliance and client-facing carbon strategy.
SECR — Streamlined Energy and Carbon Reporting
Applies to professional services firms meeting two of three size thresholds: 250 employees, £36m turnover, £18m balance sheet. Annual reporting of Scope 1 and 2 emissions and energy use in company accounts. Increasingly scrutinised by investors and clients reviewing annual reports.
SECR compliance →PPN 006 — Public Sector Supply Chain
Professional services firms bidding for central government or NHS contracts above £5 million must publish a compliant Carbon Reduction Plan. Applies to management consultancies, IT services, legal, HR and other professional disciplines contracted to public sector bodies.
Build your Carbon Reduction Plan →ESOS Phase 3 — Energy Savings Opportunity Scheme
Larger professional services firms meeting the ESOS size threshold must have completed a Phase 3 energy audit and notified the Environment Agency. For office-based businesses, this primarily covers building energy and commuting patterns.
ESOS compliance →GHG Protocol — Full Scope 1, 2 and 3
The global gold standard for carbon accounting. For professional services, Scope 3 is the critical measurement. SBS applies GHG Protocol Category mapping to identify and measure the most significant Scope 3 categories for your firm — business travel, commuting, purchased services and supply chain.
Our methodology →SBTi — Science Based Targets
Science-based targets are increasingly required by large corporate and public sector clients, B Corp assessors and institutional investors. SBS supports target development, submission and the ongoing measurement needed to track and demonstrate progress.
Target-setting support →B Corp Environmental Pillar
B Corp certification requires credible evidence of carbon measurement, a reduction plan and environmental governance. SBS provides the carbon footprint, reduction strategy and documentation needed to satisfy the Environment section of the B Impact Assessment.
B Corp support →UK SRS / IFRS S1 & S2
UK Sustainability Reporting Standards will apply to large professional services firms from 2026. Climate risk disclosure, Scope 3 value chain data and scenario analysis will all be required. Early movers demonstrate leadership to clients and talent.
Prepare early →Financed emissions (PCAF)
For financial services firms, legal advisers on transactions and professional investors, financed emissions represent the largest share of Scope 3. The Partnership for Carbon Accounting Financials (PCAF) provides the recognised measurement methodology.
Financed emissions support →Supply chain Scope 3 disclosure
Large corporate clients are beginning to require professional services suppliers to provide Scope 3 Category 1 supplier data as part of their own value chain emissions measurement. Being prepared means you remain a preferred supplier as this becomes standard.
Scope 3 support →The SBS Net-Zero Program, adapted for professional services
Every SBS engagement starts from the same GHG Protocol and ISO 14064-1 aligned foundation, then adapts to your firm's specific emission sources, client obligations and certification goals.
The SBS Net-Zero Program: your dedicated Sustainability Team
We embed into your firm as a retained Sustainability Team, not a one-off report provider. For professional services clients, this means ongoing support through annual reporting cycles, B Corp renewal and client data requests.
The Scope 3 categories that matter most for your firm
For professional services firms, the most significant Scope 3 categories are typically business travel (Category 6), employee commuting (Category 7), and purchased professional services (Category 1). For financial services businesses, financed emissions (Category 15) can dwarf all other categories combined. Understanding which categories are material to your firm — and measuring them accurately — is the foundation of credible carbon reporting that stands up to client and assessor scrutiny.
SBS measures all material Scope 3 categories using GHG Protocol-aligned methodology, combining booking system data, expense claim analysis, workforce surveys and spend-based estimation to produce defensible figures even where data is incomplete.
Built for the full range of professional services firms
From regional law firms and accountancy practices to national management consultancies and financial services businesses. Each has distinct Scope 3 profiles, client obligations and certification goals.
Business travel, commuting and client-facing sustainability questionnaires are the primary drivers. Public sector legal panels and major corporate clients are increasingly requiring a Carbon Reduction Plan as a condition of appointment.
SECR reporting for larger firms. B Corp environmental pillar growing in importance across the sector. Growing client demand for sustainability advisory services requires internal credibility first — you need to demonstrate what you advise.
Public sector consulting frameworks increasingly require PPN 006 Carbon Reduction Plans. International project travel dominates Scope 3. Science-based targets are growing as a competitive requirement for framework inclusion.
Financed emissions (PCAF Category 15) dominate the footprint. Regulatory pressure from the PRA, FCA and investor stewardship codes. Net Zero Banking Alliance and UN PRB commitments require robust, auditable measurement.
Hardware and cloud infrastructure Scope 3, supply chain emissions and client ESG questionnaires are primary challenges. PPN 006 applies for public sector technology contracts above the threshold.
Operational carbon from managed buildings (Scope 3 Category 13), embodied carbon for development activity and investor sustainability reporting under GRESB and UK SRS frameworks.
Questions from professional services firms
Not sure which frameworks apply to your firm or how to satisfy your B Corp assessor? Book a free call for a direct, no-jargon answer specific to your situation.
Book a free call →Sustainability credentials that win and retain clients
Book a free 30-minute call. We will review your current carbon position, check your B Corp and SECR obligations and outline a clear pathway to credible, client-ready sustainability reporting.
