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Greenly
Greenly is a Paris-based carbon management platform founded in 2019, rated #1 Sustainability Management Software on G2, and trusted by 2,500+ clients across Europe and North America. Built for organizations without specialist sustainability teams, its EcoPilot AI copilot guides users through carbon accounting, CSRD reporting, Life Cycle Assessments, and supplier engagement — producing results in weeks rather than months. It occupies the underserved gap between spreadsheets and enterprise platforms that SMEs fall into when their first carbon obligation arrives.
Sweep
Carbon and ESG data governance platform engineered for multi-entity corporate groups. Sweep's founding insight is that most organizations know how to calculate their emissions — they just cannot get the data from their subsidiaries in a state that makes calculation meaningful. The platform governs collection, enforces methodology, and produces the audit lineage that CSRD-grade assurance requires.
Greenly
Sweep
Sustainability Impact
15/20
18/20
🏆
Features & Capabilities
16/20
16/20
Value for Money
18/20
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15/20
Ease of Use
19/20
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16/20
Trust & Maturity
14/20
17/20
🏆
Pricing
paid
enterprise
Year founded
2019
2020
Best for
European SMEs and mid-market companies (10–2,000 employees) taking their first or second step in carbon accounting — particularly those responding to customer CSRD supply chain requests, EcoVadis assessments, or preparing for Wave 2 CSRD obligations with limited internal expertise.
Multinational corporate groups and listed companies with 10 or more subsidiary entities that must consolidate carbon and ESG data across complex organizational structures — where the primary obstacle to CSRD compliance is not knowing how to calculate emissions, but not being able to get clean, governed, auditable data out of 25 different business units in time to produce a figure an assurance provider will not challenge.
Categories
Carbon & ClimateCarbon Accounting
Carbon & ClimateCarbon Accounting
Carbon Scopes
Scope 1 (Direct emissions)Scope 2 (Indirect energy)Scope 3 (Value chain)
Scope 1 (Direct emissions)Scope 2 (Indirect energy)Scope 3 (Value chain)
Key features
- EcoPilot AI — Guided Carbon Accounting for Non-Expert Teams EcoPilot is Greenly's embedded AI copilot designed specifically for sustainability managers who are not carbon accounting specialists. It guides users through data collection (100+ enterprise integrations covering accounting software, expense management, fleet telematics, and utility data), prompts for missing information, explains methodology choices in plain language, and generates the carbon footprint calculation aligned with the GHG Protocol. Automated API connections handle both spend-based and activity-based data collection, reducing manual entry. The AI detects anomalies in submitted data before they propagate into the final footprint — a quality control layer that matters when the team completing the assessment has no prior GHG accounting experience. EcoPilot also guides users through CSRD-specific requirements: XBRL tagging, double materiality assessment tooling, and ESRS E1 data point completion, with expert guidance from Greenly's network of 100+ implementation partners for organizations requiring hands-on support.
- Life Cycle Assessment (LCA) — Product Carbon Footprint at SME Scale Greenly includes Life Cycle Assessment capability within the base platform — a feature that most carbon accounting platforms reserve for enterprise tiers or exclude entirely. LCA enables organizations to calculate the environmental impact of a specific product across its full lifecycle (raw materials, manufacturing, transportation, use, and end-of-life), producing a Product Carbon Footprint (PCF) that can be shared with customers and used for product-level environmental claims. For European manufacturers, this capability is increasingly material: the EU Battery Regulation requires PCFs for batteries from 2024; the Ecodesign for Sustainable Products Regulation will extend similar requirements across additional product categories. CBAM (Carbon Border Adjustment Mechanism) compliance tools are included for organizations importing goods subject to carbon pricing. For SMEs facing customer PCF data requests they cannot currently answer, Greenly's LCA provides the most accessible path to a defensible product footprint.
- CSRD and EcoVadis Integration — Compliance at SME Price Point Greenly provides CSRD-specific tooling at a price point accessible to Wave 2 CSRD-obligated organizations: ESRS data collection workflow, automated double materiality assessment, XBRL tagging and xHTML export for ESAP submission, and expert guidance from implementation partners. CSRD reporting time reduction from 1,000+ hours to under 100 hours is cited in platform documentation. The EcoVadis integration deserves specific attention: Greenly facilitates EcoVadis assessment completion by organizing sustainability data collection and providing a structured output that maps to EcoVadis questionnaire requirements. For SMEs receiving EcoVadis assessment requests from their largest customers — increasingly common as CSDDD and CSRD drive supply chain ESG data requests — this integration reduces the EcoVadis assessment burden from weeks of manual data gathering to an automated, pre-structured export. SBTi target-setting tooling and supplier engagement workflows for Scope 3 Category 1 primary data collection round out the compliance feature set.
- Multi-entity consolidation architecture — a parent-subsidiary data model that preserves entity-level granularity while producing group-level rollup with full traceability. Designed around the organizational reality that a sustainability director in Paris cannot compel a plant manager in Seoul to submit clean data on deadline — and builds the workflow infrastructure that makes it happen anyway.
- Supplier Scope 3 engagement engine — structured primary data requests distributed to suppliers through a managed portal, with completion tracking, automated follow-up, and direct ingestion of supplier-provided emission factors into the group inventory. The gap between a Scope 3 figure built on EEIO spend proxies and one built on primary supplier data is not a rounding error. It is the difference between a disclosure an assurance provider accepts and one they qualify.
- Native audit lineage layer — an immutable record linking every disclosed figure to its source entity, data owner, input method, emission factor version, and submission timestamp. Under CSRD limited assurance — and increasingly under reasonable assurance — the assurance provider is not checking your arithmetic. They are checking whether your governance process can be documented and followed end to end. Sweep makes that documentation automatic rather than retrospective.
Pros
- The time-to-first-footprint for organizations without prior carbon accounting experience is Greenly's most distinctive operational advantage. An SME that begins a Greenly engagement in January can have a completed, GHG Protocol- aligned carbon footprint ready for customer submission by March — a timeline that is achievable with Greenly's EcoPilot guidance and standard enterprise integrations, and that would require 6–12 months with a consultant engagement or 3–6 months with a specialist platform requiring more configuration. The #1 G2 ranking reflects this specific value: among organizations doing carbon accounting for the first time, Greenly produces results faster than any alternative approach.
- The combination of organizational carbon footprint, product Life Cycle Assessment, CSRD tooling, EcoVadis integration, and SBTi target-setting in a single platform at SME pricing is genuinely unusual in the market. Most platforms offer two or three of these; Greenly offers all five at a price point (starting ~$539/year for the smallest tier) that makes the full capability set accessible to organizations that would otherwise need multiple vendor relationships. For a manufacturing SME facing simultaneous demands for an organizational carbon footprint (from an investor), a product PCF (from a retail customer), an EcoVadis assessment (from another customer), and CSRD ESRS E1 data (from a CSRD-obligated parent company), Greenly's coverage breadth eliminates the multi-vendor complexity that a specialist approach would require.
- The EcoPilot AI assistance specifically addresses the knowledge barrier that prevents many SMEs from attempting carbon accounting at all — not the tool cost, but the expertise gap. A sustainability manager hired 6 months ago with a background in communications, tasked with completing the company's first GHG inventory, faces a methodology learning curve that a Normative advisor solves with expert engagement and Greenly solves with AI guidance. Both approaches produce results. Greenly produces them faster and at lower cost. For organizations where the first footprint is the milestone — not the first assurance-grade footprint — Greenly's guided approach is the right calibration.
- Most carbon accounting failures at group level are coordination failures, not calculation failures. Sweep is the only platform in this category architected specifically around that insight — and the multi-entity data model is genuinely different from carbon calculators that added a "group" feature as an afterthought. Organizations with 20 or more entities that have tried to consolidate via spreadsheet will recognize immediately what problem Sweep was built to solve.
- The Scope 3 supplier portal is among the most operationally significant capabilities in the platform. Spend-based Scope 3 estimation is fast, cheap, and increasingly inadequate — SBTi validation, CDP quality ratings, and CSRD assurance providers are all applying more scrutiny to Category 1 methodology. A managed portal that industrializes primary data collection and tracks supplier response rates year-on-year addresses this gap in a way that a general-purpose carbon tool cannot.
- Audit lineage that is generated automatically, rather than reconstructed under deadline pressure, is the practical difference between a first CSRD assurance engagement that goes smoothly and one that does not. The platform logs provenance continuously throughout the reporting cycle. When the assurance team arrives, they review a record — they do not trigger a documentation exercise.
Cons
- The methodology depth and verification rigor that enterprise platforms provide is not matched in Greenly. Several user reviews note that strong internal verification was necessary — that without dedicated review, errors can propagate into the GHG inventory. For organizations whose footprint will be submitted to a Big Four assurance provider under ISAE 3000 limited assurance, or whose SBTi submission will undergo technical review, Greenly's guided AI approach requires more internal quality control than a platform with TÜV-verified methodology (Normative) or a named GHGP-certified advisor (Normative). The platform can produce a defensible footprint — but it requires the internal sustainability team to review outputs critically rather than accepting AI-generated results without validation.
- Greenly's pricing starts at the SME end but scales upward for organizations with larger data volumes, more complex Scope 3 inventories, or enterprise integration requirements. Several user reviews note that the platform can feel expensive for smaller organizations once the full feature set is required — and that pricing transparency is limited (no published tier matrix, pricing requires sales engagement). For organizations scaling from SME to mid-market, the cost trajectory should be modeled before committing to a multi-year Greenly relationship, as the price point advantage narrows as complexity grows.
- The platform's coverage breadth — carbon footprint, LCA, CSRD, EcoVadis, SBTi — means no single capability is as deep as dedicated specialist platforms. For Scope 3 Category 1 at the depth of Watershed's Product Footprints AI-powered decomposition, Greenly does not compete. For CSRD governance and multi-framework ESG data management at the depth of Novisto, Greenly's tooling is more limited. For organizations where one of these specific capabilities is the primary requirement rather than a secondary output, the specialist platform serves them better than Greenly's broad-but-shallower approach. Greenly is optimized for the organization that needs all five capabilities at acceptable quality — not the organization that needs one capability at maximum quality.
- The organizational complexity that makes Sweep valuable is also the precondition for its value. A company with one legal entity, straightforward energy and travel data, and no supplier engagement program will pay enterprise pricing for multi-entity consolidation infrastructure it cannot use. For that profile, Normative, Watershed, or Persefoni deliver better value per unit of effort and cost.
- Implementation timeline is driven by organizational readiness, not platform configuration. The platform can be technically configured in weeks. Getting 25 subsidiary data owners — finance managers, operations leads, facility administrators who have other jobs and no sustainability background — identified, briefed, trained, and actively submitting quality data to a deadline takes months of structured change management. This is not a software caveat. It is the nature of the problem the software is solving. But buyers who treat it as a software project will be surprised.
- Sweep governs and consolidates. It does not build the decarbonization program that acts on what the data reveals. Organizations that have consolidated their ESG data and now need to manage reduction initiatives, track intervention progress, and connect emissions to budget allocation should evaluate Watershed for the program management layer, or SINAI Technologies for the marginal abatement analysis that informs where to invest.
