Plan A
Certified carbon accounting software for enterprises that need auditable Scope 1, 2 and 3 emissions numbers and CSRD-ready reports.
Pick Plan A if your reporting has to survive scrutiny. TÜV Rheinland certified, GHG Protocol compliant methods plus a named Scientific Advisory Board is a stronger audit story than most carbon platforms can tell, and the fleet and supplier-engagement modules cover the Scope 3 data you do not own. The 20x reporting claim and the 130+ days saved on calculation methods are the vendor's own numbers, but the underlying accelerants — pre-built certified methods and one-click report generation — are real features, not positioning. Watershed is the closer call for peer benchmarking; Salesforce Net Zero Cloud is the closer call if you want your emissions data inside an existing Salesforce footprint.
Verified 20h ago · liveness 69/100 · cite: rightaichoice.com/tools/plan-a
- Mid-to-large enterprises needing TÜV-certified, GHG Protocol compliant carbon accounting for audit or CSRD filing
- Companies with dedicated sustainability staff running an SBTi-aligned net-zero programme
- Fleet-heavy businesses calculating Scope 1 and downstream Scope 3 emissions from fuel or mileage data
- Software, fashion, media and business-services firms using supplier engagement to close Scope 3 gaps
- Startups or small businesses with no sustainability headcount and no budget for services
- Teams that only want a free carbon calculator — use the Carbon Scanner instead
- Companies expecting deep pre-built ERP or CRM integrations out of the box
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Skip Plan A if you want to configure a carbon platform yourself over a weekend with no vendor services, or if your emissions reporting has no audit, CSRD or customer-questionnaire audience behind it.
Plan A sits in the enterprise carbon-accounting bracket, alongside Watershed and Salesforce Net Zero Cloud, rather than the self-serve end where small-business carbon tools live. Budget for services alongside the licence: Plan A delivers the platform with personalised onboarding, carbon accountants and policy experts, and supplier-engagement and custom-API work in particular are people-intensive. That makes the total cost of ownership materially higher than a licence-only comparison suggests,
In short
Plan A — Certified carbon accounting software for enterprises that need auditable Scope 1, 2 and 3 emissions numbers and CSRD-ready reports. Best for Mid-to-large enterprises needing TÜV-certified, GHG Protocol compliant carbon accounting for audit or CSRD filing, Companies with dedicated sustainability staff running an SBTi-aligned net-zero programme, Fleet-heavy businesses calculating Scope 1 and downstream Scope 3 emissions from fuel or mileage data. Contact Sales pricing.
No head-to-head comparison for Plan A yet — the alternatives below are the closest matches we list.
What people actually say about Plan A — is it worth it?
We scanned public community sources for Plan A on Oct 9, 2026 and could not establish that the discussion we found is about this tool rather than something else sharing its name. Only 1 of the posts we fetched could be positively tied to Plan A. Rather than publish a sentiment score built on the wrong subject, we publish nothing here and re-run the scan.
Viability Score
How well maintained and how widely used is Plan A? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: October 2026
How we score →Key Features
- Scope 1, 2 and 3 emissions measurement
- GHG Protocol compliant and TÜV Rheinland certified calculation methods
- AI-enhanced data collection, integration and management
- One-click corporate carbon footprint report generation
- Stakeholder-ready carbon footprint report templates
- Decarbonisation target setting with emissions and cost forecasting
- Fleet emissions calculated from fuel, mileage or estimated data
- Supplier engagement campaigns for Scope 3 data collection
- Regulation centre covering CSRD, ESRS, CSDDD, EU Taxonomy, UK SDR, US SEC, CBAM
- Gaia AI assistant for sustainability questions and internal advocacy
- Carbon Scanner free company carbon footprint estimator
- Decarbonisation Savings Calculator
- Custom API integrations for emissions data import
- Industry modules for Fashion, Software & IT, Fleet management, Media, Business services
- Double materiality assessment support
About Plan A
Plan A is carbon accounting software for companies whose emissions numbers have to hold up in front of an auditor, a CSRD reviewer or a customer's procurement team. It runs three linked jobs: measuring Scope 1, 2 and 3 emissions, disclosing them in stakeholder-ready carbon footprint reports, and running decarbonisation actions with forecasts behind each reduction target. The buyer profile is mid-to-large: the vendor's own case studies sit in software & IT, business services, fleet management, media, fashion & apparel, and VC & PE. What separates Plan A from generic ESG dashboards is the certification stack — the calculation methods are GHG Protocol compliant and TÜV Rheinland certified, the company is B Corp certified, and it holds certified data security standards. An in-house Scientific Advisory Board, including Chad Frischmann of Project Drawdown and Gonzalo Muñoz, former UN High Level Climate Champion, signs off on methodology. The workflow accelerants are concrete: AI-assisted data management that the vendor claims cuts month-long data projects to a few weeks (70% faster data management), ready-to-use calculation methods the vendor credits with saving 130+ days of carbon accounting work, and one-click generation of corporate carbon footprint reports that Plan A puts at 20x faster reporting. Industry modules handle the awkward cases — fleet emissions from fuel, mileage or estimated data, custom API data integrations for software companies, and supplier engagement campaigns for the Scope 3 data you do not own. The regulation centre tracks CSRD, ESRS, CSDDD, EU Taxonomy, UK SDR, US SEC and CBAM, and Gaia AI is a chatbot companion for sustainability questions and internal advocacy. Free entry points exist in the form of the Carbon Scanner footprint estimator and the Decarbonisation Savings Calculator. Plan A is not a swipe-a-card self-serve product; it is sold with personalised services alongside the software, and it competes on certified rigour rather than on price shopping.
Behind the Verdict
Plan A's real product is defensibility. Any carbon platform can draw a bar chart of your Scope 1 and 2 emissions; far fewer can hand an auditor a methodology sign-off from a board that includes Chad Frischmann of Project Drawdown and Gonzalo Muñoz, the former UN High Level Climate Champion. If your numbers travel — into a CSRD filing, a customer's supplier questionnaire, a bank's sustainability-linked loan review — that paper trail is the thing you are actually buying, and it is the hardest part for a cheaper tool to copy. The second strength is coverage of the messy data. Scope 3 is where carbon projects die, because you are asking suppliers for numbers you do not control and reconstructing fleet emissions from fuel cards, mileage logs or outright estimates. Plan A ships modules for exactly those cases: fleet emissions from fuel, mileage or estimated data, supplier engagement campaigns, and custom API data integrations that the vendor has built for software and IT clients such as Sorare, Payhawk, Mollie and Ampeco. The regulation centre keeps CSRD, ESRS, CSDDD, EU Taxonomy, UK SDR, US SEC and CBAM obligations in one place, which matters if you file in more than one jurisdiction. The third strength is speed of onboarding relative to traditional consulting. Plan A claims 70% faster data management, 130+ days saved through ready-to-use certified calculation methods, and 20x faster reporting via one-click report generation. Treat those as vendor figures, but the mechanism behind them — a library of maintained, certified methods rather than a blank spreadsheet you populate from scratch — is a genuine difference from building a footprint in Excel with an advisor. Where it falls short is configurability and autonomy. Plan A is delivered with personalised services, expert guidance and onboarding; the supplier engagement and custom API work in particular run through people, not a wizard. Teams that want to self-configure a carbon platform end to end, with no vendor in the loop, will find that friction. Companies with no sustainability headcount also tend to stall, because someone internal still has to own data collection and target setting. Where it fits: mid-to-large enterprises with at least one dedicated sustainability person, an SBTi-aligned net-zero programme, and an audit or CSRD obligation on the calendar. Fleet-heavy businesses and Scope 3-heavy businesses in fashion, media, software and business services get the most out of the industry modules. Where it does not: pre-revenue startups, teams that want a free calculator rather than a managed programme (use the Carbon Scanner for that), and buyers whose primary question is 'what does it cost per seat' rather than 'will this survive review'.
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Real-world workflow fit
Concrete scenarios for the personas Plan A actually fits — and what changes day-one when you adopt it.
You import finance, travel and procurement data into Plan A, use the software & IT module and custom API integrations to pull what your systems already hold, then map gaps to the CSRD and ESRS requirements listed in the regulation centre before generating a carbon footprint report for the board.
Outcome: A GHG Protocol compliant, TÜV-certified footprint and a disclosure-ready report produced with Plan A's carbon accountants rather than from a blank spreadsheet.
You load fuel card and mileage records into the fleet module, let Plan A calculate Scope 1 and downstream Scope 3 emissions from fuel, mileage or estimated data where records are incomplete, then set reduction targets with emissions and cost forecasts attached.
Outcome: Fleet emissions your auditor can trace back to source data, plus a costed reduction plan you can take to finance.
You run supplier engagement campaigns through Plan A to collect Scope 3 data you do not own, identify hotspot suppliers in the platform, and hand your largest accounts the reporting templates they need to respond.
Outcome: A populated Scope 3 inventory with named hotspots instead of an estimates-only placeholder, and fewer supplier questionnaires landing back on your desk.
Use Cases
- Measure your full corporate carbon footprint across Scopes 1, 2 and 3 using AI-assisted data collection
- Automate ESG reporting to comply with CSRD, ESRS and EU Taxonomy
- Set science-based reduction targets and track progress with emissions and cost forecasts
- Engage suppliers to collect Scope 3 emissions data and identify hotspots
- Generate stakeholder-ready carbon footprint reports in minutes with pre-built templates
- Use industry-specific modules for Fashion, Software & IT, Fleet management or Media
- Calculate fleet emissions from fuel, mileage or estimated data
- Run a double materiality assessment for CSRD compliance
Models Under the Hood
as of 2026-10-16
Limitations
- Supplier engagement campaigns and custom API data integrations in particular run through Plan A's carbon accountants and policy experts, so onboarding costs you calendar time as well as licence cost, and the vendor pegs data management at a few weeks rather than days even with AI assistance.
- Smaller organisations without a sustainability owner typically stall at the data-collection stage.
- Vendors of this type also tend to price at enterprise level, which puts the full platform out of reach for early-stage teams — Plan A's free Carbon Scanner and Decarbonisation Savings Calculator are the realistic entry points there.
- The 70% faster data management, 130+ days saved and 20x reporting speed figures are the vendor's own marketing claims, not independently verified benchmarks; the underlying accelerants (certified pre-built methods, one-click reports) are real features, but treat the multipliers with caution.
as of 2026-09-29
Verification history
We have re-verified Plan A 20 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — re-checked, vendor evidence unchanged
- — re-checked, vendor evidence unchanged
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
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Showing the 6 most recent of 20 verification passes.
Free to cite with attribution — this page re-verifies continuously.
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Where the pricing makes sense
The company stage and team size where Plan A's pricing actually pencils out — and where peers do it cheaper.
Plan A sits in the enterprise carbon-accounting bracket, alongside Watershed and Salesforce Net Zero Cloud, rather than the self-serve end where small-business carbon tools live. Budget for services alongside the licence: Plan A delivers the platform with personalised onboarding, carbon accountants and policy experts, and supplier-engagement and custom-API work in particular are people-intensive. That makes the total cost of ownership materially higher than a licence-only comparison suggests,
Setup time & first value
How long it actually takes to get something useful out of Plan A — broken out by persona, not the marketing-page minute.
Realistic time to first value depends on how much of your data already exists in usable form and whether you take services. A software or business-services company with clean finance and travel data and API access: first footprint within a few weeks. A fleet-heavy or Scope 3-heavy business that has to gather supplier and mileage records: expect longer, with supplier engagement running as an
Switching to or from Plan A
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From spreadsheets plus external consultants: bring your existing activity data and emission factors into Plan A, then replace the consultant-built workbook with certified methods maintained by Plan A's scientific
- →From a lighter carbon calculator: re-onboard your activity data against Plan A's Scope 1, 2 and 3 methods to gain TÜV-certified calculations and auditable reporting.
- →From an internal ESG tracker: map your tracked metrics to Plan A's CSRD, ESRS and EU Taxonomy regulation centre to move from ad hoc tracking to structured disclosure.
- ↗To Watershed: if peer benchmarking against comparable companies becomes the deciding factor, export your footprint and reporting data and re-onboard.
- ↗To Salesforce Net Zero Cloud: if your emissions data needs to live inside an existing Salesforce estate, expect to re-map activity data to its object model.
- ↗To a free calculator: if you only need directional numbers rather than an auditable inventory, Plan A's own Carbon Scanner covers that without a licence.
Resources & Guides
Tutorials & Learning
YouTube returned 6 videos for “Plan A”, and we withheld 6: 6 could not be judged, because “Plan A” is a single word that other videos use for other things. We are showing none, because we could not prove any of them are about Plan A.
Official links
Tools that pair well with Plan A
Common stack mates teams adopt alongside Plan A, with the specific reason each pairing earns its keep.
Persefoni
AI-native carbon accounting software for audit-ready Scope 1, 2, and 3 emissions reporting
Greenly
Greenly is a carbon accounting platform for Scope 1-3 GHG emissions, ISO lifecycle assessment, and CSRD, CBAM, and VSME reporting.
Normative
Carbon accounting software for Scope 1, 2 and 3 emissions, with a named Climate Strategy Advisor on every account.
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