Sustainx Aps

What Sustainx Aps does

SustainX ApS is a privately held Danish ESG and sustainability consulting firm founded in 2020, headquartered in Horsens with offices in Copenhagen and Oslo. The firm sells time-based professional services to enterprise and mid-market companies in Denmark and Scandinavia, structured around eight core practice areas: ESG strategy, climate accounting (Scope 1–3 per GHG Protocol), LCA and EPD (ISO 14040/14044), Science Based Targets advisory, supplier programs, climate transition plans, ESG reporting and communication (CSRD/ESRS/VSME/ISSB), and double materiality assessment (DMA). An optional "Co-pilot" module provides ongoing advisory with reserved consultant hours for continuous client engagement.

The firm's underlying technology is methodological rather than software-based: it combines technical expertise in carbon accounting, life cycle assessment, and regulatory frameworks with a structured implementation approach that emphasizes anchoring sustainability in client operations rather than producing standalone reports. SustainX also publishes an annual Status Report based on a 122-company survey of Danish ESG practices, which serves as both thought leadership and a proprietary market intelligence asset. The firm has no proprietary software platform, APIs, or AI-based tooling disclosed.

Commercially, SustainX operates an enterprise field-sales model led by senior advisors, offering an initial one hour of free sparring as a lead-generation mechanism. Revenue is generated through hourly professional fees with monthly invoicing on 14-day payment terms, billed alongside travel time and project expenses. Engagement is delivered either as fixed-scope projects or ongoing collaboration. Named customers include JYSK (multi-year), Lars Larsen Group, Søstrene Grene, Polar Seafood, Milton Huse, Geveko Markings, and Danish Agro, spanning retail, seafood, construction, manufacturing, and agriculture. The firm is independent and founder-led, with Co-founder & CEO Line Amtorp Poulsen; no external institutional capital or parent ownership is evidenced.

Name

Sustainx Aps

Legal name

SustainX ApS

Website

https://sustainx.dk

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

11–50 employees

Short description

SustainX ApS is a privately held Danish ESG and sustainability consulting firm founded in 2020, providing time-based advisory across climate accounting, SBTi, LCA/EPD, CSRD reporting, and strategy to enterprise and mid-market companies in Denmark and Scandinavia.

Ownership category

akta.pro rank

Product category

Sustainability Consulting

NAICS

Management, Scientific, and Technical Consulting Services (5416), Environmental Consulting Services (541620), Environmental Consulting Services (54162)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Sustainability & ESG Consulting (BPAHACAK)

akta.pro secondary industries

ESG Governance, Sustainability Reporting & Assurance Advisory (BPAHAFAJ), ESG Strategy & Materiality Assessment (EUAHAJAA)

Keywords

• ESG consulting services
• Climate accounting advisory
• CSRD compliance consulting
• Life cycle assessment
• Science based targets

Headquarters

HQ city

Horsens

HQ country

Denmark

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Consulting Services: Time-based consulting fees charged by the hour. Travel time and project-related expenses billed separately. Monthly invoicing with 14-day payment terms.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

SustainX is a Danish ESG and sustainability consulting firm that helps enterprise and mid-market companies in Denmark and Scandinavia structure, implement, and anchor sustainability work. Core offerings span ESG strategy development, climate accounting (Scope 1-3 per GHG Protocol), life cycle assessments and EPDs, Science Based Targets (SBTi) advisory, supplier programmes, climate transition plans, ESG reporting (CSRD/ESRS/VSME), and double materiality assessments, delivered as project-based or ongoing collaborative engagements by a team of 20+ specialized ESG advisors.

Product overview

SustainX is an ESG and sustainability consulting firm offering advisory services across eight core practice areas. The portfolio includes ESG Strategy (structuring and governance), Climate Accounting (Scope 1-3 carbon accounting per GHG Protocol), LCA & EPD (product-level life cycle assessment and environmental declarations per ISO 14040/14044), Science Based Targets (SBTi advisory), Supplier Programme (supply chain ESG engagement), Transition Plans (decarbonization roadmaps), ESG Reporting & Communication (CSRD/ESRS/VSME), and Double Materiality Assessment (DMA). These services are delivered as distinct consulting engagements, with an optional Co-pilot ongoing support module for continuous advisory access. The company also offers two engagement models: project-based delivery with fixed scope and timeline, or ongoing collaboration with reserved consultant hours.

Differentiator

Problem solved

Functional benefit

Products and services

• ESG-strategi (ESG Strategy) Consulting service helping companies structure, prioritize, and anchor their ESG work with tools including policies, gap analysis, double materiality analysis, strategy workshops, stakeholder mapping, objectives and KPIs, roadmap development, management anchoring, and ESG governance structure.
• Klimaregnskab (Climate Accounting) Climate accounting service that helps companies prepare carbon accounts covering Scope 1-3 emissions according to GHG Protocol, including data collection, emission factors, screening, baseline establishment, and audit preparation for decision-making and action prioritization.
• LCA & EPD (Life Cycle Assessment & Environmental Product Declaration) Life cycle assessment (LCA/PCF/PEF) and Environmental Product Declaration (EPD) services based on ISO 14040 and ISO 14044 standards, helping companies document product climate footprints, identify improvements, and communicate environmental impacts.
• SBTi (Science Based Targets initiative) Science Based Targets advisory service guiding companies through SBTi enrollment, Scope 1-3 analysis, reduction plans, data foundation development, scenario modeling, reporting, strategy integration, KPIs and follow-up processes.
• Leverandørprogram (Supplier Programme) Structured supplier engagement program including supplier screening, risk assessment, code of conduct development, data requirements and questionnaires, capacity building, follow-up and audit services, Scope 3 reduction support, procurement strategy, upskilling, and incentive structure.
• Transitionsplaner (Transition Plans) Climate transition planning service helping companies develop actionable roadmaps with action plans, decarbonization strategies, reduction plans and targets, SBTi integration, and governance structures for credible and structured climate ambition execution.
• ESG-rapportering og kommunikation (ESG Reporting and Communication) ESG reporting and communication advisory covering CSRD/ESRS/VSME standards, ESG disclosure requirements, legislation and greenwashing prevention, and ISSB/IFRS/GRI frameworks for compliant stakeholder communication.
• Dobbelt væsentlighedsvurdering DMA (Double Materiality Assessment) Double materiality assessment service helping companies identify significant ESG impacts, risks, and opportunities using ESRS standards, supporting ESG reporting, risk management, and voluntary reporting for SMEs.
• Co-pilot Ongoing advisory support structure providing planning and roadmap tools, continuous knowledge sparring, and ad-hoc strategic and technical support to structure and operationalize sustainability and ESG work.

Quantifiable outcome

• 220+ projects completed across Scandinavian companies
• +1 more outcomes

Named customers7 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Søstrene GrenecoreStrategic or Co-development PartnerOngoing collaborative relationship supporting Søstrene Grene's sustainability team with ESG strategy development, reporting governance establishment, and roadmap creation linking strategy to gap analysis results. Characterized by continuous dialogue and sparring ensuring continuity and progress.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Carbon Trust: UK-based climate and sustainability advisory helping organizations measure, manage, and reduce environmental impact, including carbon footprinting, SBTi target setting, and sustainability strategy. Directly comparable service portfolio to SustainX across climate accounting and ESG advisory.
• Anthesis Group: Global sustainability consultancy providing ESG strategy, climate accounting, CSRD reporting, and supply chain sustainability services. Closely comparable to SustainX in core service portfolio and target customer base of enterprises navigating sustainability compliance and strategy.
• Position Green: Nordic ESG and sustainability consultancy headquartered in Stockholm, offering CSRD reporting, climate accounting, double materiality, and ESG strategy services to enterprises and SMEs across Scandinavia. Highly comparable to SustainX in service portfolio, customer segments, and geographic focus on the Nordic market.
• South Pole: Global climate consultancy offering climate strategy, SBTi advisory, carbon accounting, and sustainability reporting services to enterprises. Comparable to SustainX on the SBTi, climate accounting, and decarbonization advisory offerings, though at materially larger scale and global reach.

Broad incumbents

• Ramboll: Large Danish-founded engineering, architecture, and consultancy with a substantial sustainability and ESG advisory practice serving Nordic and global clients on CSRD, climate strategy, and transition planning. Competes with SustainX on enterprise ESG mandates but offers a much broader portfolio across engineering, design, and consulting.
• Deloitte Sustainability Services (Nordics): Big 4 advisory with a Nordic sustainability and climate practice offering CSRD reporting, ESG strategy, and climate transition advisory to large enterprises. Direct competitor to SustainX on enterprise ESG mandates in Denmark and the broader Nordic region, with deeper resources and integrated assurance offerings.
• ERM (Environmental Resources Management): Global sustainability consulting firm offering ESG advisory, climate strategy, EHS, and impact assessment services across industries. Competes with SustainX for large enterprise ESG mandates but at vastly larger scale with global delivery capability.
• KPMG ESG Advisory (Nordics): Big 4 advisory with a substantial ESG and sustainability practice in Denmark and the Nordics, offering CSRD/ESRS assurance, climate strategy, and ESG advisory. Competes with SustainX on enterprise mandates, particularly where integrated assurance is required.

Emerging players

• Normative: Sweden-based carbon accounting and ESG software platform helping companies measure Scope 1-3 emissions and meet CSRD reporting requirements. Represents the software-enabled competitor to SustainX's traditional climate accounting advisory, increasingly automating tasks SustainX currently bills hourly for.

Others

• Sphera: ESG and operational risk software platform providing carbon accounting, sustainability reporting, and product stewardship solutions to enterprises. Adjacent ecosystem player whose software products increasingly substitute for traditional sustainability consulting services like those SustainX provides.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sustainx-consult

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 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 Sustainx Aps