Best ACT Group Decarbonization Platform Alternatives in 2026

Paid#2 of 30 in Carbon Accounting Software

The top ACT Group Decarbonization Platform alternatives are IBM Envizi, CarbonTool and Normative: 15 carbon accounting software our editors would look at instead of ACT Group Decarbonization Platform, in our ranking order.

9.3/10★★★★★Editor score

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ACT Group Decarbonization Platform9.3 Visit ACT Group

• 15 alternatives
• Updated Oct 2026
• Our ACT Group Decarbonization Platform verdict

ACT Group Decarbonization Platform: An end-to-end platform for carbon accounting, supplier programs and renewable-energy procurement. Where it falls short: pricing requires contact with sales rather than published plan rates.

All 15 ACT Group Decarbonization Platform Alternatives, Ranked

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

1. 1
   
   IBM Envizi 9.4

   Best forLarge enterprises needing mature ESG infrastructure

   • Better than ACT Group Decarbonization Platform:
   • Editor score 9.4 vs 9.3

   A broad Scope 1–3 platform for organizations with complex sustainability data needs.

   • API access

   Pricing on request Our IBM Envizi verdict → + Compare Visit IBM Envizi
   9.4/10★★★★★

   Visit IBM Envizi
2. 2
   
   CarbonTool 9.2

   Best forOrganizations needing affordable audit-ready accounting

   Broad Scope 1–3 accounting and reporting from €2,000 per organization annually.

   • API access

   30-day trial Our CarbonTool verdict → + Compare Visit CarbonTool
   9.2/10★★★★★

   Visit CarbonTool
3. 3
   
   Normative 9.1

   Best forCompanies prioritizing emissions-factor depth

   A Scope 1–3 platform with deep emissions-factor coverage, supplier engagement, and audit-ready reporting.

   • API access

   Pricing on request Our Normative verdict → + Compare Visit Normative
   9.1/10★★★★★

   Visit Normative
4. 4
   
   Watershed 9.0

   Best forEnterprises needing flexible climate management

   A broad carbon accounting platform for enterprise measurement, disclosure, and reduction planning.

   • API access

   Pricing on request Our Watershed verdict → + Compare Visit Watershed
   9.0/10★★★★☆

   Visit Watershed
5. 5
   
   Persefoni 8.9

   Best forTeams seeking a free entry point

   A free entry point for Scope 1–3 accounting with audit-ready workflows and integrations.

   • API access

   Free plan Our Persefoni verdict → + Compare Visit Persefoni
   8.9/10★★★★☆

   Visit Persefoni
6. 6
   
   Sweep 8.8

   Best forComplex value-chain and product footprints

   A broad carbon accounting platform for detailed corporate, product, and supplier footprints.

   • API access

   Pricing on request Our Sweep verdict → + Compare Visit Sweep
   8.8/10★★★★☆

   Visit Sweep
7. 7
   
   SINAI Technologies 8.7

   Best forTeams combining accounting with abatement planning

   A full-scope carbon platform that connects inventories, suppliers and reduction planning.

   • API access

   Pricing on request Our SINAI Technologies verdict → + Compare Visit SINAI
   8.7/10★★★★☆

   Visit SINAI
8. 8
   
   CarbonAnalytics 8.6

   Best forGrowing organizations wanting transparent pricing

   A broad carbon accounting platform with transparent entry pricing and supplier tools.

   • API access

   14-day trial Our CarbonAnalytics verdict → + Compare Try CarbonAnalytics
   8.6/10★★★★☆

   Try CarbonAnalytics
9. 9
   
   NetNada 8.4

   Best forFinance-led teams wanting automated accounting

   A finance-friendly platform for automated emissions accounting, supplier engagement, and reporting.

   • API access

   Pricing on request · 14-day trial Our NetNada verdict → + Compare Visit NetNada
   8.4/10★★★★☆

   Visit NetNada
10. 10
    
    GreenStitch 8.2

    Best forTextile companies needing detailed value-chain analysis

    A textile-focused platform for Scope 1–3 accounting, product analysis and supplier data.

    • API access

    15-day trial Our GreenStitch verdict → + Compare Visit GreenStitch
    8.2/10★★★★☆

    Visit GreenStitch
11. 11
    
    Carbonfact 8.1

    Best forFashion brands needing product and supplier depth

    A fashion-focused platform combining Scope 1–3 accounting, product LCA, and supplier data.

    • API access

    Pricing on request Our Carbonfact verdict → + Compare Visit Carbonfact
    8.1/10★★★★☆

    Visit Carbonfact
12. 12
    
    Vaayu 8.0

    Best forRetailers needing deep supply-chain traceability

    A retail-focused platform for Scope 1–3 accounting, supplier data, and product footprints.

    • API access

    Pricing on request Our Vaayu verdict → + Compare Visit Vaayu
    8.0/10★★★★☆

    Visit Vaayu
13. 13
    
    CarbonSmart 7.9

    Best forIndustrial teams needing verification workflows

    A broad carbon accounting platform for industrial teams with verification needs.

    • API access

    Pricing on request Our CarbonSmart verdict → + Compare Visit CarbonSmart
    7.9/10★★★★☆

    Visit CarbonSmart
14. 14
    
    CO2 AI 7.8

    Best forEnterprises needing advanced product carbon analysis

    A broad carbon accounting platform for corporate, product, and supply-chain emissions.

    • API access

    Pricing on request · 30-day trial Our CO2 AI verdict → + Compare Visit CO2 AI
    7.8/10★★★★☆

    Visit CO2 AI
15. 15
    
    Hedgehog Carbon Platform 7.7

    Best forSmall organizations starting with free accounting

    A practical starting point for Scope 1–3 accounting, with manual data collection.

    Free plan Our Hedgehog Carbon Platform verdict → + Compare Visit Hedgehog
    7.7/10★★★★☆

    Visit Hedgehog

How to Switch from ACT Group Decarbonization Platform

1. Export your data from ACT Group Decarbonization Platform (most tools have an export in their settings).
2. Sign up for the alternative; start on its free plan or trial if it has one.
3. Import your export and set up the integrations your team relies on.
4. Run both side by side for a short while, then cancel ACT Group Decarbonization Platform.

ACT Group Decarbonization Platform vs Each Alternative

#	Tool	Free plan	Paid from	Scope coverage	Data collection	Emissions factors	Supplier engagement	Audit trail	Score
2	ACT Group Decarbonization Platform			Scope 1-3	Both	Built-in	Yes	Yes	9.3
1	IBM Envizi			Scope 1-3	Both	Both	Yes	Yes	9.4
2	CarbonTool	No	€2,000/yr	Scope 1-3	Both	Both	Yes	Yes	9.2
3	Normative			Scope 1-3	Both	Built-in	Yes	Yes	9.1
4	Watershed			Scope 1-3	Both	Both	Yes	Yes	9.0
5	Persefoni	Yes		Scope 1-3	Both	Both	Yes	Yes	8.9
6	Sweep			Scope 1-3	Both	Both	Yes	Yes	8.8
7	SINAI Technologies			Scope 1-3	Both	Both	Yes	Yes	8.7
8	CarbonAnalytics	No	£671.99/unit/yr	Scope 1-3	Both	Both	Yes	Yes	8.6
9	NetNada	No		Scope 1-3	Both	Both	Yes	Yes	8.4
10	GreenStitch	No	$3,000/yr	Scope 1-3	Both	Both	Yes	Yes	8.2
11	Carbonfact	No		Scope 1-3	Both	Both	Yes	Yes	8.1
12	Vaayu			Scope 1-3	Both	Built-in	Yes		8.0
13	CarbonSmart			Scope 1-3	Both	Both	Yes	Yes	7.9
14	CO2 AI	No		Scope 1-3+	Both	Both	Yes	Yes	7.8
15	Hedgehog Carbon Platform	Yes	€100/mo	Scope 1-3	Manual	Both	Yes		7.7

Head-to-Head

• ACT Group Decarbonization Platform vs IBM Envizi
• ACT Group Decarbonization Platform vs CarbonTool
• ACT Group Decarbonization Platform vs Normative
• ACT Group Decarbonization Platform vs Watershed
• ACT Group Decarbonization Platform vs Persefoni
• ACT Group Decarbonization Platform vs Sweep

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated 7 Oct 2026 · How we research and update