NSW Conseil

What NSW Conseil does

NSW Conseil is a Paris-based RSE (Corporate Social Responsibility) and ESG strategy consulting firm founded in 2016 by Nathanaël Westphal. The firm advises three primary client segments — enterprises of all sizes (TPE/PME/ETI/grands groupes), private equity investment funds, and project owners/startups — on sustainability strategy, Ecovadis evaluation, CSRD compliance, ESG due diligence, regulatory alignment, and capability building. Its core service stack includes Accompagnement RSE 360°, Évaluation Ecovadis, Accompagnement CSRD, an Ecovadis-to-CSRD transition service, a structured Training offering, and dedicated investment fund and startup verticals. Delivery is led by a lean core team (founder Nathanaël Westphal, associate Romain Berrou, consultant François Cegarra-Escolano) augmented by a network of 10+ named certified experts covering biodiversity, carbon/climate, HR/social, automation, and tools, with certifications spanning LUCIE, AFNOR, BCORP, ACT (ADEME), and Climate Fresque facilitators.

The firm operates a professional services business model with custom, quote-based pricing tied to engagement scope, client size, and service requirements, typically delivered under multi-year contracts. Go-to-market is consultative direct sales, executed through website contact forms, direct email, phone, and Calendly scheduling, supported by content marketing on a blog (Réalisations) and LinkedIn. The firm serves 60+ clients across 15+ sectors with 130+ cumulative projects, and discloses quantified outcomes including 100% Ecovadis client score improvement, average +20-point score progression, 45% of clients reaching Platinum medal, and multi-year enterprise engagements (e.g., DomusVi, ANJAC, Bpifrance). No external funding, M&A, or geographic expansion outside France has been disclosed.

Revenue is generated entirely through professional services fees across the service portfolio, with no software, SaaS, or data-licensing revenue. The customer base is heterogeneous in size — ranging from sub-100-employee SMEs (Creative Spirit, Praticima, Valtus, Marvesting) to multi-thousand-employee enterprises (DomusVi with 50,000+ employees, ANJAC with 3,000+ employees across 14 companies) — which diversifies revenue risk but exposes the firm to long sales cycles on the larger end. The blended hybrid delivery model (internal expertise + partner network) is structurally a low-fixed-cost, high-margin boutique consulting operation, but scalability is constrained by the founder-led nature of the practice and the absence of disclosed institutional capital.

Name

NSW Conseil

Legal name

NSW Conseil

Website

https://nswconseil.fr

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1–10 employees

Short description

NSW Conseil is a Paris-based RSE and ESG strategy consultancy founded in 2016, advising enterprises, investment funds, and startups on sustainability strategy, Ecovadis evaluation, CSRD compliance, and training across 15+ sectors.

Ownership category

akta.pro rank

Product category

Sustainability and ESG Consulting Services

NAICS

Management, Scientific, and Technical Consulting Services (5416), Other Scientific and Technical Consulting Services (54169)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

ESG Governance, Sustainability Reporting & Assurance Advisory (BPAHAFAJ)

Keywords

• ESG consulting services
• Sustainability strategy advisory
• CSRD compliance consulting
• Ecovadis evaluation support
• ESG due diligence

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Marketing or Sales, Operations, Technology or R&D

Revenue model

1. Strategic RSE Consulting: Advisory services helping companies, investors, and project owners seize sustainability opportunities to accelerate transition to more sustainable business models. Includes RSE strategy, CSRD compliance, Ecovadis evaluation, ESG due diligence, regulatory alignment, and methodology creation.
2. Training Services: Customized training programs on sustainability topics including planetary limits, RSE fundamentals, Climate Fresnaye, sustainable regulations, finance and investment standards, CSRD principles, and European taxonomy. Adapted to needs, expectations, and levels of each participant.
3. ESG Portfolio Analysis Services: Custom methodology design services for evaluating and improving investment sustainability, SFDR compliance, Article 29 alignment, CSRD compliance, and centralized ESG indicator collection for portfolio companies.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels3 records

Core offering

NSW Conseil is a French RSE/ESG strategy and sustainable development consultancy that helps companies, investment funds, and project owners accelerate their transition to more sustainable business models. Its core offerings include RSE 360° strategy and operational deployment, Ecovadis evaluation support, CSRD compliance and reporting, Ecovadis-to-CSRD transition, ESG due diligence for private equity, and customized sustainability training. The firm combines internal expertise with a network of certified partners and mastery of frameworks such as GRI, SASB, CSRD, Global Compact, and TCFD to deliver tailored, hands-on engagements.

Product overview

NSW Conseil is a RSE (Corporate Social Responsibility) and sustainable development strategy consultancy founded in 2016. The firm offers a tiered service portfolio organized by client segment: (1) For businesses – Ecovadis evaluation support, CSRD compliance, RSE 360° advisory, and Ecovadis-to-CSRD transition; (2) For investment funds – ESG due diligence, portfolio analysis, regulatory alignment, and acceleration programs; (3) For project owners/startups – ESG strategic analysis, impact valuation, and financing structure support. A transversal Training offering covers topics from La Fresque du Climat to CSRD and sustainable finance. The portfolio ranges from assessment and compliance services (Ecovadis, CSRD) to strategic advisory (RSE 360°) and capability building (Formation), serving enterprises, investors, and entrepreneurs seeking to advance sustainability agendas.

Differentiator

Problem solved

Functional benefit

Products and services

• Accompagnement RSE 360° Comprehensive RSE/ESG advisory service for French businesses of all sizes (TPE, PME, ETI, grands groupes) covering strategy definition, maturity diagnostics, action plans, operational deployment, and RSE reporting. Designed for companies seeking to structure, deploy, and valorize their sustainability approach end-to-end.
• Évaluation Ecovadis Tailored Ecovadis CSR assessment support including gap analysis, improvement action plans, documentation management, and questionnaire completion, helping businesses achieve higher EcoVadis scores and medals. Offered by NSW Conseil since 2016, with 100% of clients improving their score and 45% achieving Platinum (top 1%).
• Accompagnement CSRD CSRD compliance support including team training, recommendations and action plans, governance setup, eligibility analysis and EU green taxonomy alignment, double materiality analysis, data collection and reporting, gap diagnostics, and auditable sustainability report preparation. Targeted at organizations preparing for CSRD obligations.
• Accompagnement Ecovadis to CSRD Transition service that leverages existing Ecovadis work to support CSRD compliance, combining expertise in both frameworks to optimize prior efforts. Includes status assessment, adaptation plans, documentation optimization, and CSRD reporting management.
• Fonds d'investissement (ESG advisory for PE investors and portfolio companies) ESG advisory services for private equity investors and their portfolio companies, including ESG due diligence (sell-side and buy-side), post-acquisition ESG reviews, CSRD compliance, portfolio ESG methodology design, regulatory alignment (SFDR, Article 29), centralized ESG indicator collection, and Ecovadis acceleration programs. Delivered in collaboration with a network of finance and M&A experts.
• Formation (Customized sustainability training) Flexible, customized training programs on sustainability topics including La Fresque du Climat, CSRD modules, sustainable finance regulations (SFDR, EU Taxonomy), ESG standards, and sustainable finance products. Adapted to participants' needs, expectations, and levels for executive committees, investment teams, and broader employee groups.
• Porteur de projet / Start-up (Project owner and startup ESG support) Support for project leaders, researchers, and entrepreneurs integrating ESG dimensions into projects from early stages. Services include ESG strategic analysis and benchmarking, impact modeling and indicator definition, financing dossier structuring, impact business model creation, and networking/partnership facilitation to strengthen project credibility with funders and juries.

Quantifiable outcome

• 100% of Ecovadis clients improved their score
• +7 more outcomes

Named customers21 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Twelve partnerships are on record, tiered core and minor.

• LUCIE (Referenced Consultants)coreStrategic or Co-development PartnerNSW Conseil consultants are referenced by LUCIE, a recognized sustainability certification body. LUCIE reference provides credibility and alignment with European sustainability standards.
• AFNORcoreStrategic or Co-development PartnerConsultants certified through AFNOR, France's standards organization, ensuring alignment with French and European quality and sustainability standards.
• B CorpcoreStrategic or Co-development PartnerConsultants qualified by B Corp, demonstrating commitment to meeting high standards of social and environmental performance, transparency, and accountability.
• ACT (ADEME)coreStrategic or Co-development PartnerACT (Act for Climate Transition) methodology certified consultants, backed by ADEME (French Environment and Energy Management Agency).
• La Fresque du Climat (Climate Fresnaye)coreStrategic or Co-development PartnerTeam includes trained Climate Fresnaye facilitators for climate awareness and environmental challenge workshops, offering participatory training experiences.
• Finance and M&A Expert NetworkcoreStrategic or Co-development PartnerNetwork of experts from sustainable finance and M&A backgrounds supporting investor and private equity client engagements on ESG due diligence, portfolio analysis, and regulatory compliance.
• Martin Aubard (Expert - Tools)coreOthersExpert in tools and methodologies supporting RSE strategy development and deployment.
• Olivier Behra (Expert - Biodiversity)coreOthersBiodiversity expert supporting environmental and ecological aspects of sustainability strategies.
• Vincent Randon (Expert - Automation)coreOthersAutomation expert supporting process optimization and data collection for ESG reporting.
• Dominique Gaudio (Expert - HR & Social)coreOthersHR and social expertise covering workplace policies, employee engagement, and social responsibility aspects.
• Lucas Chassagne (Expert - Carbon & Climate)coreOthersCarbon and climate expert supporting climate strategies, carbon footprint assessment, and decarbonization planning.
• Aroma ForestminorOthersProject owner/startup client referenced for porteured de projet services, demonstrating startup ecosystem support.

Scale indicators15 records

Recent moves6 records

Expansion highlights10 records

Direct peers

• GreenFlex: French sustainability consultancy and data platform supporting companies on CSR strategy, energy/climate transition, and regulatory compliance (CSRD, taxonomy). Comparable in serving French SMEs to large corporates on CSRD and ESG advisory.
• Carbone 4: Paris-based climate strategy and decarbonization consultancy serving corporates and investors. Directly comparable to NSW Conseil on French ESG/CSR advisory, regulatory expertise, and SME-to-large-cap client mix.
• EcoAct: France-originated climate and carbon consultancy (now part of Accenture) advising corporates and investors on decarbonization, TCFD, and CSRD reporting. Comparable in target market and regulatory depth; broader scale.
• Utopies: French sustainable development and CSR strategy consultancy founded in the 1990s, advising corporates on materiality, reporting, and impact strategy. Closely overlaps NSW Conseil's RSE 360° and CSRD service lines.

Broad incumbents

• PwC France (Sustainability practice): Big 4 firm with a dedicated sustainability and climate change practice covering CSRD, ESG due diligence, and taxonomy alignment. Comparable to NSW Conseil on enterprise ESG advisory but with broader scale and assurance linkage.
• EY France (Climate & Sustainability practice): Big 4 firm offering ESG advisory, CSRD/CSRS reporting support, and ESG due diligence for PE. Overlaps with NSW Conseil's enterprise and investment-fund service lines, particularly for larger engagements.
• Sia Partners: International management and technology consultancy with a sustainability/ESG practice serving large corporates. Competes with NSW Conseil on CSRD and ESG advisory for mid-market and large French clients, with broader cross-border delivery.
• KPMG France (Sustainability practice): Big 4 sustainability practice offering CSRD/CSRS assurance-adjacent advisory, ESG strategy, and regulatory reporting. Directly competes with NSW Conseil on CSRD preparation engagements for large French enterprises.
• Deloitte France (Sustainability practice): Big 4 firm with a sustainability and climate practice covering CSRD reporting, ESG strategy, and ESG due diligence. Competes for large French corporates (e.g., DomusVi-class accounts) and PE fund mandates.

Others

• AFNOR (CSR/ESG division): French standards body and certification organization whose consultants and ISO/CSA-related offerings sit adjacent to NSW Conseil's work (referenced by NSW as a certification partner). Not a direct competitor but an adjacent ecosystem player in sustainability standards and training.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/nsw-conseil

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about NSW Conseil