The best carbon accounting platforms for pharmaceutical companies (2026)

For many pharmaceutical companies, most of the carbon footprint sits with suppliers. Active ingredients come from chemical makers, finished doses often come from contract manufacturers, and packaging and cold chain logistics add more. iNova Pharmaceuticals measured its footprint and found Scope 3 was 99% of the total.

So the platform to pick is the one that handles that supply chain. It should collect data from contract manufacturers and API suppliers, estimate products when they send nothing, and keep a trail an assurer can follow.

Terrascope makes one of the nine platforms below, and we have put it first. Read the ranking with that bias in mind. We describe the others from their own websites and the 2026 analyst reports, and say who each one fits. The questions to take into a demo are at the end.

The nine platforms at a glance

What a pharma company needs from a carbon platform

Any carbon platform will add up the data you load. Pharma supply chains need five things on top of that.

• Contract manufacturer and API supplier data. Goods you buy from a contract manufacturer sit in Category 1 of Scope 3. The platform needs a way for those suppliers to send a footprint, and a way to check it before it counts.
• Products without supplier data. Many suppliers send nothing in year one. The platform should estimate a product from its bill of materials, process and packaging, and show how confident the estimate is.
• Packaging. Blister packs, bottles, cartons and secondary packaging add emissions and, in several markets, extended producer responsibility (EPR) reporting. iNova prepared EPR packaging data for Singapore, Vietnam and Australia.
• Cold chain and distribution. Refrigerant leaks at your own sites are Scope 1. Cold chain transport you pay for falls in Scope 3, Category 4. The platform has to hold both, by site and by route.
• Reporting and assurance. Disclosure rules in the US, Singapore, the EU and Australia now cover large companies, pharma groups included. Each figure needs a source trail for the assurer.

[In-text graphic to come: where a pharma company's footprint sits, from owned sites (Scope 1 and 2) through API and excipient suppliers, contract manufacturers, packaging and cold chain distribution (Scope 3), with iNova's 99% Scope 3 share as the anchor.]

The nine platforms assessed

1. Terrascope

Best for: pharmaceutical and consumer health companies that make or source products through contract manufacturers and need an audit-ready Scope 1, 2 and 3 footprint in weeks.

Terrascope measures corporate and product footprints in one platform. Finance exports, supplier spreadsheets and bills of materials go in as they are. Machine learning matches each line to an emission factor and gives each match a confidence score.

For contract manufacturers and API suppliers, Terrascope runs supplier campaigns. Each supplier gets a guided workflow to submit a corporate footprint with an allocation ratio, or a product footprint. The platform flags missing values, outliers and inconsistencies as data comes in. Accepted submissions become supplier-specific emission factors in your inventory.

Many suppliers send nothing in the first year. For those products, Terrascope estimates a cradle-to-gate footprint from the bill of materials, process and packaging, in line with ISO 14067 and the GHG Protocol Product Standard. Pokka footprinted 4,980 SKUs this way, and the estimates were about 92% accurate against actual data for 700 of them. WBCSD lists Terrascope as conformant with Version 3 of PACT, the framework for exchanging product footprints between companies.

iNova Pharmaceuticals, a specialty pharma company headquartered in Singapore, sells more than 1,100 SKUs in over 75 markets, mainly through third-party manufacturers. It had relied on spend-based estimates. Terrascope measured its FY'23 Scope 1, 2 and 3 emissions across more than 700 SKUs, matching activity data to over 50,000 emission factors. Packaging and specific shipments came out as major drivers, and Terrascope modelled the cost and benefit of each reduction lever.

Ernst & Young has assured Terrascope's methodology, and each figure keeps its lineage back to the source document. Dyno Nobel used that trail to complete limited assurance over 1.6 million tonnes of Scope 1 and 2 emissions. For the written disclosure, the climate reporting module maps the 86 disclosures of IFRS S2, the basis of the SGX rules and AASB S2. It drafts each one from your own documents for your team to review.

Terrascope is a Leader in the 2025 IDC MarketScape for carbon management. Its climate and carbon specialists work with your team from the first upload to the assurer's questions, as part of the subscription. The pharmaceuticals page covers API manufacturing, cold chain and packaging in more detail.

2. Watershed

Best for: large enterprises with an established sustainability team that want supplier data and product footprints in one platform.

Watershed, based in San Francisco, is a Leader in the 2026 Verdantix Green Quadrant for enterprise carbon management software. It also says it is a Leader in the 2026 Forrester Wave for sustainability management software. Its supply chain module sends data requests, targets and reduction plans to suppliers through a guided portal.

In March 2026 Watershed partnered with EcoVadis to bring supplier-reported emissions into the platform in place of broad averages. Watershed shows Bristol Myers Squibb and Johnson & Johnson among its customer logos, and lists Thermo Fisher Scientific as a user of its product footprints.

3. Sweep

Best for: multi-entity groups that want carbon accounting inside a wider sustainability data platform.

Sweep, headquartered in Paris and London, is a Leader in the 2026 Verdantix Green Quadrant for enterprise carbon management software. Sweep also says it is a Leader in IDC's 2026 MarketScape for carbon accounting and management applications. Its healthcare page shows Sanofi, Cytiva and Synthon among its customers.

Supplier interfaces collect primary Scope 3 data. Sweep states that its product footprints follow ISO 14067 and the GHG Protocol Product Standard, across a full catalogue.

4. Sphera

Best for: companies with chemical-heavy supply chains that want life cycle assessment depth and product footprints from suppliers.

Sphera, based in Chicago, makes the LCA software formerly known as GaBi and is a Leader in the 2026 Verdantix Green Quadrant for enterprise carbon management software. Its Supplier PCF Calculator, which Sphera describes as complimentary, lets a supplier enter its bill of materials and get a cradle-to-gate footprint. Sphera also brings BASF's supplier footprint method into its software, which helps where APIs and solvents come from chemical suppliers.

5. CO2 AI

Best for: companies that want to collect supplier and product footprints at scale at no cost to suppliers.

CO2 AI was created by Boston Consulting Group and has been an independent company, based in Paris, since 2023. Its pharmaceuticals page covers facility-level manufacturing emissions, API and raw material supply chains, product footprints and clinical trial operations.

Suppliers respond through its Supplier Engagement Hub without a licence, and its product footprint exchange is free for clients and suppliers. WBCSD lists CO2 AI as PACT conformant at Version 3. In September 2026 it partnered with EcoVadis on supplier emissions data.

6. IBM Envizi

Best for: distributed groups consolidating ESG data across many sites, with a supplier portal for Scope 3 Categories 1 and 2.

Envizi is IBM's ESG data suite, built on the Sydney company IBM bought in 2022. IBM is a Leader in the 2026 Verdantix Green Quadrant for enterprise carbon management software. Its Supply Chain Intelligence module collects corporate emissions, product footprints and targets from suppliers through a central portal.

IBM says the module applies the best available method to each line, from spend-based to supplier-specific. Astellas Pharma uses Envizi to prepare its sustainability disclosures, according to IBM.

7. SAP Sustainability Footprint Management

Best for: companies that run on SAP and want corporate and product footprints calculated inside the ERP.

SAP Sustainability Footprint Management calculates footprints from ERP data, and SAP says it can set up allocation schemes for complex production. Supplier footprints come in through SAP Sustainability Data Exchange, which exchanges data with Catena-X and PACT. SAP says it is a Leader in IDC's 2026 MarketScape for carbon accounting and management applications.

8. Persefoni

Best for: finance-led disclosure programmes, including financed emissions.

Persefoni, based in Tempe, Arizona, sells carbon accounting and disclosure software to companies and financial institutions. Its supplier engagement offer gives suppliers Persefoni Pro to measure their own footprint at no cost. Genetic testing company Natera used Persefoni to measure about 154,030 tonnes of CO2e across 18 sites, about 95% of it Scope 3.

9. Greenly and Normative

Best for: mid-sized pharma manufacturers and CDMOs that want a sector-specific setup.

Greenly, based in Paris, and Normative, based in Stockholm, announced in September 2026 that they are joining forces. The press reported it as Greenly acquiring Normative. Both have pharma pages.

Greenly's covers CDMOs facing client ESG requests, SB 253, the CSRD and NHS procurement, and shows Perrigo and Illumina among its customers. Normative's covers APIs, contract manufacturers and packaging suppliers. It builds product footprints from the bill of materials and collects supplier data through its Carbon Network.

Reporting deadlines pharma companies face

Five sets of rules set the timetable for many large pharma groups in 2026 and 2027.

Our guides to California SB 253, Singapore's climate disclosure rules and the CSRD cover each rule in detail.

Large pharma companies now pass the same asks to their own suppliers. Our guide to Scope 3 software for pharma contract manufacturers covers what they ask for and how to collect it.

Eight questions to ask any vendor

Take them into the demo.

1. Show us a contract manufacturer submitting data. Ask to see the supplier's screen as well as yours.
2. How is a shared site split between customers? Ask which allocation bases the platform accepts and where the basis is recorded.
3. What happens when a supplier sends nothing? Ask how the estimate is built and how its confidence is shown.
4. Can you send and receive product footprints in the PACT format? WBCSD publishes a list of conformant software. Ask which PACT version the platform is listed against.
5. Who assured your methodology, and when? Ask for the assurer's name and the date.
6. Can you trace one reported figure back to its source? Ask the vendor to do it live, on their own screen.
7. Which of our disclosures can the platform draft? SB 253, SGX, the CSRD and AASB S2 ask for different outputs. Ask to see each one.
8. Are specialists included? If the answer is a support ticket, budget for a consultancy as well.

Related reading: Scope 3 software for pharma contract manufacturers · The 10 best carbon management platforms for enterprise supply chains (2026) · WBCSD PACT explained · Methods of calculating Scope 3 emissions · iNova case study

Frequently asked questions (FAQs)