Persefoni
Carbon accounting and sustainability management platform for measuring, reporting and reducing emissions.
By Persefoni AI Inc. · HQ Mesa, US · 4.2/5 Value-Position score (estimate)
Positioning guardrails
Best for
- Mid-market and enterprise companies that must publish assurance-grade Scope 1, 2 and 3 GHG inventories for CSRD, ISSB, CDP, SECR or California SB 253/261 disclosure
- Financial institutions and private-equity firms measuring financed emissions and portfolio footprints with PCAF-aligned methods
- Sustainability teams running supplier engagement and improving spend-based Scope 3 estimates toward actuals
- Organizations wanting a free self-serve starting point (Persefoni Pro) before scaling into an enterprise program
- Buyers that require SOC 2 Type II and ISO 27001 evidence and AWS-hosted data residency in the US, EU or Japan
Ideal size: 50–5,000 employees people · Mid-market to enterprise with a dedicated sustainability/ESG function and disclosure obligations
Not for
- Very small businesses seeking a one-off carbon footprint estimate rather than an ongoing accounting system
- Companies that want a consultant to deliver a report without adopting software or collecting their own activity data
- Teams looking for carbon offset or credit purchasing; Persefoni focuses on measurement, reporting and reduction planning
- Buyers who need published list pricing for enterprise tiers, since Advanced is quote-based
- Firms whose primary need is EHS or broader ESG compliance rather than GHG accounting and disclosure
Value metrics scorecard
Time-to-Value
2–6 weeks
~30 days to first production value
Total Cost of Ownership
$30,000/yr
Starts at $0 · Freemium: Persefoni Pro is free with no credit card; Persefoni Advanced is a quote-based annual subscription sold through a demo.
Implementation Friction
3/5
Engineering + admin effort required
Value-Position score
out of 5 · model estimate
Full cost breakdown
Mandatory implementation fee
None
Seat tiers
Pro: 1 user (additional users are a paid add-on); Advanced: unlimited users.
Add-on costs
- Pro add-ons: extra users, GHG Metrics/Methodology/CDP/SECR reports, Scope-Category Analytics, Export Emissions Summary, Premium Support, Professional Services.
- Advanced add-ons: Premium Support, Professional Services, Product Carbon Footprint, Net-Zero Navigator, Physical Risk Modeling (coming soon).
Company & support
Who is behind Persefoni, and how your team gets help once it is live.
Company
- Founded
- Not recorded
- Headquarters
- Mesa, US
How you get support
- PhoneNot listed
- EmailNot listed
- Live chatNot listed
- Support portal / ticketsNot listed
- Community forumNot listed
- Help centre / docsAll plans
- Dedicated account managerPlan not stated
- In person / on-siteNot listed
- Hours
- Not recorded
- Response time
- Not stated
Pricing page lists Educational Videos & Documentation on both Pro and Advanced, plus a Customer Success Manager; Premium Support is an add-on on Pro and included in Advanced.
“Not listed” means the vendor’s public pages don’t mention that channel, not that it is unavailable. Ask about it during evaluation.
Market position
Where Persefoni sits against its closest alternatives. Pick any two of cost, speed, friction and buyer score, and up to 9 companies to compare.
Quadrant view
Typical annual cost × Time-to-value
The lines cross at the median of the solutions shown, so about half sit on each side of each line.
Companies on the chart 6 / 10
- Persefoni
- Tenable
- SentinelOne
- Snyk
- Sweep
- VComply
Add or change companies
Up to 10 companies including Persefoni. Listed closest first.
Stack fit signal
Compatibility with standard B2B ecosystems.
No supported MCP path today, so it cannot be driven from an AI client.
AI & MCP readiness
What Persefoni ships in AI, and what it asks of your ecosystem.
AI features shipped
Homepage describes PersefoniAI as natively embedded and accessible in every plan: a Copilot built on the Persefoni LLM with a GPT-style chat interface, anomaly detection across large footprint data sets, and natural-language emission factor mapping (listed as coming soon).
Your data & models
- Trains on your data
- Not recorded — ask the vendor
- Runs on
- Not recorded
- AI pricing
- Included in the plan
In your ecosystem
- AI connection
- Not supported
- Model key
- Not recorded
- AI usage audit
- Not recorded
Compliance attestations
* IAPP AIGP certifies individuals, not products. It means named staff hold the credential — not that the platform does.
Bottom line
Persefoni is a carbon accounting and sustainability management platform for measuring Scope 1–3 emissions, producing assurance-grade GHG disclosures (CSRD, ISSB, CDP, SECR, California SB 253/261) and managing decarbonization. Its free Pro tier covers foundational footprints, while Advanced adds custom inventories, APIs, financed-emissions (PCAF) analytics and unlimited users. PersefoniAI adds a Copilot, anomaly detection and natural-language emission factor mapping. Hosted on AWS with SOC 2 Type II and ISO 27001 certification.
Frequently asked questions
Is there a free plan, and what does it include?
Yes. Persefoni Pro is free with no credit card required and covers Scope 1, 2 and 3 footprint totals, responses to customer supply-chain requests such as CDP and EcoVadis, and a sustainability report builder, with one user and annual calculation frequency. Enterprise capabilities such as APIs, the integration hub, real-time and custom calculation frequency and unlimited users require the quote-based Advanced plan.
What security certifications does Persefoni hold?
The security page states Persefoni maintains SOC 1 Type II and SOC 2 Type II attestations, ISO 27001 and ISO 27017 certifications, and CSA STAR Level 2 Gold, audited annually by a third party, with reports available from its trust portal. Data is encrypted with AES-256 at rest and TLS 1.2 or above in transit, hosted in AWS regions in the US, Ireland and Japan.
Can Persefoni handle financed emissions for banks and funds?
Advanced includes PCAF and financed emissions measurement plus portfolio analytics, and Persefoni markets a dedicated Financial Services offering. Customers include a multinational investment bank, a US regional bank and multiple private-equity firms that use it to measure portfolio footprints and benchmark performance.
Which disclosure frameworks are supported?
The platform builds GHG metrics reports aligned to CDP, SECR, CSRD, ISSB and California SB 253/261 (CA-CCDAA), plus investor reporting and a sustainability report builder. Some reports, such as CDP, SECR and GHG methodology reports, are add-ons on the free Pro tier and included in Advanced.
How is Persefoni priced for a larger company?
Advanced is quote-based and sold annually through a demo, while Pro is free. Premium Support, Professional Services, Product Carbon Footprint, Net-Zero Navigator and Physical Risk Modeling are positioned as add-ons or coming-soon modules rather than being included in the base subscription.