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SustainIQ vs Plan A: Which is Better in 2026?

Choosing between SustainIQ and Plan A comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.

Bottom line: SustainIQ is our overall pick for sustainability & esg workflows. Pick Plan A if you need carbon tracking.

··Methodology
Editor reviewed0 verified reviews comparedPricing checked Jun 2026

Short on time? Here's the quick answer

We've tested both tools. Here's who should pick what:

SustainIQ

Complete ESG reporting solution to measure, monitor, and report on social, environmental, and economic performance.

Best for you if:

  • • You need sustainability & esg features specifically
  • Measures, monitors, and reports on 300+ ESG metrics from a single dashboard.
  • Drives business growth by improving ESG performance and competitiveness in tenders.

Plan A

Certified carbon accounting software for precise measurement, reporting, and reduction of emissions.

Best for you if:

  • • You need carbon tracking features specifically
  • Certified software for precise carbon accounting across Scopes 1, 2, and 3.
  • Streamlines carbon reporting with AI-enhanced tools and generates stakeholder-ready reports.
At a Glance
SustainIQSustainIQ
Plan APlan A
Starts at
Custom
Custom
Best For
Sustainability & ESGCarbon Tracking
Rating
4.5/5-

Choose SustainIQ or Plan A?

SustainIQ

Choose SustainIQ if

Complete ESG reporting solution to measure, monitor, and report on social, environmental, and economic performance.

  • Consolidates all ESG data into one platform, simplifying reporting.
  • Significantly reduces time spent on ESG, CSR, and sustainability reporting.
  • Enhances competitiveness in public procurement tendering.
  • Your work is sustainability & esg-shaped, not carbon tracking-shaped
Plan A

Choose Plan A if

Certified carbon accounting software for precise measurement, reporting, and reduction of emissions.

  • Certified software ensures accuracy and compliance with global standards.
  • AI-enhanced features significantly reduce time spent on data management and reporting.
  • Comprehensive support from in-house scientists and experts for tailored decarbonization strategies.
  • Your work is carbon tracking-shaped, not sustainability & esg-shaped
FeatureSustainIQPlan A
Pricing ModelPaidPaid
User Rating
4.5/5
10 reviews
No ratings yet
Categories
Sustainability & ESGCompliance
Carbon TrackingESG Reporting

In-Depth Analysis

SustainIQSustainIQ

Complete ESG reporting solution to measure, monitor, and report on social, environmental, and economic performance.

Strengths

  • +Consolidates all ESG data into one platform, simplifying reporting.
  • +Significantly reduces time spent on ESG, CSR, and sustainability reporting.
  • +Enhances competitiveness in public procurement tendering.
  • +Provides quantifiable evidence of sustainability efforts for tenders and reports.
  • +Assists with a wide range of national and international compliance standards.

Weaknesses

  • -Specific pricing details are not publicly available.
  • -Requires initial data input and integration to fully leverage its capabilities.

Key features

Integrated reporting dashboard for data analyticsCompliance assistance for ISO14001, ISO50001, EMAS, BREEAM, LEED, ESOS, SECRResponsible Procurement reporting (supply chain, recycled goods, socio-economic impact)Environmental Management (Scope 1, 2 & 3 Emissions, waste, business transport, biodiversity)People, Health & Diversity metrics (apprenticeships, diversity initiatives, wellbeing)Community Engagement & Partnering (charity donations, beneficiaries, social impact)
Starts at Custom

Plan APlan A

Certified carbon accounting software for precise measurement, reporting, and reduction of emissions.

Strengths

  • +Certified software ensures accuracy and compliance with global standards.
  • +AI-enhanced features significantly reduce time spent on data management and reporting.
  • +Comprehensive support from in-house scientists and experts for tailored decarbonization strategies.
  • +Focus on a 'decarbonization-first' approach for impactful emission reductions.
  • +Access to a community and resources for continuous learning and collaboration.

Weaknesses

  • -Specific pricing details are not publicly available, requiring a demo request.
  • -The platform's full capabilities and integration ecosystem are not exhaustively detailed without a demo.

Key features

Corporate carbon footprint measurement (Scopes 1, 2, 3)GHG Protocol compliant and TÜV Rheinland certified calculation methodsAutomated carbon reporting with one-click report generationDecarbonization action planning and target settingEmissions forecasting and cost analysisAI-enhanced interface for data management
Starts at Custom

Who Should Use What?

On a budget?

Both are paid. Compare plans on their websites.

Go with: SustainIQ

Want the highest-rated option?

SustainIQ is rated 4.5/5. Plan A has no ratings yet.

Go with: SustainIQ

Value user reviews?

SustainIQ: 10 reviews (4.5/5). Plan A: no ratings yet.

Go with: SustainIQ

3 Questions to Help You Decide

1

What's your budget?

Both are paid. Pricing won't help you decide here.

2

What's your use case?

SustainIQ is a sustainability & esg tool. Plan A is in carbon tracking. Pick the category that matches your needs.

3

How important are ratings?

SustainIQ is rated 4.5/5; Plan A has no ratings yet.

Key Takeaways

SustainIQ

  • Our pick for this comparison

Plan A

  • Better fit for carbon tracking

The Bottom Line

SustainIQ is our pick.

Frequently Asked Questions

Is SustainIQ or Plan A better?

SustainIQ is rated in our evaluation. Both are paid.

What are SustainIQ and Plan A used for?

SustainIQ: Complete ESG reporting solution to measure, monitor, and report on social, environmental, and economic performance.. Plan A: Certified carbon accounting software for precise measurement, reporting, and reduction of emissions..

What does SustainIQ cost vs Plan A?

SustainIQ is a paid tool. Plan A is a paid tool. Visit their websites for detailed pricing.

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