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KEY ESG vs Zei Comparison (2026)

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KEY ESG logo

KEY ESG

Zei logo

Zei

Overview

The end-to-end ESG management platform for businesses and investors. KEY ESG’s intuitive and modular platform enables organisations at all levels of ESG maturity to conduct data-driven analysis of their ESG performance and drive measurable improvement.

Zei is a sustainability management platform that helps organizations measure and reduce their carbon footprint, centralize ESG data, engage suppliers, and streamline sustainability reporting from a single platform.

  • Platforms supported
  • Web-based
  • iPhone app
  • Android app
  • Windows Phone app
  • Typical customers
  • Freelancers
  • Small businesses
  • Mid size businesses
  • Large enterprises
  • Customer support
  • Phone
  • Online
  • Knowledge base
  • Video tutorials
  • Platforms supported
  • Web-based
  • iPhone app
  • Android app
  • Windows Phone app
  • Typical customers
  • Freelancers
  • Small businesses
  • Mid size businesses
  • Large enterprises
  • Customer support
  • Phone
  • Online
  • Knowledge base
  • Video tutorials

Video & Screenshots

Pricing

Starting from

Empty state illustration for "No pricing info"

No pricing info

  • Free trial available
  • Credit cardless trial
  • Free account
  • Subscription based

Starting from

2990

Per year

  • Free trial available
  • Credit cardless trial
  • Free account
  • Subscription based

User reviews

4.9

27

5

4

3

2

1

23

4

0

0

0

  • Value for money
  • Ease of use
  • Features
  • Customer support
96%
would recommend this app

4.6

39

5

4

3

2

1

26

12

1

0

0

  • Value for money
  • Ease of use
  • Features
  • Customer support
90%
would recommend this app

Pros

“What was initially a very daunting task became much more manageable thanks to the KEY ESG platform, which makes data collection intuitive and simple for our companies and the support team who helped us along the way.”
JN

Jennifer N.

Associate, Investor and Stakeholder Relations

“Expertise, outstanding platform covering a range of ESG topics standards and reporting requirements delivering an overall comprehensive user experience.”
SP

Sam P.

Partner

“The level of customer support they were willing to provide was exceptional and made the entire implementation process much smoother.”
MC

Mackenzie C.

Sr Manager

Pros

“Very intuitive interface that centralizes all our ESG and sustainability data in one place, instead of juggling multiple spreadsheets and tools.”
Verified reviewer profile picture

Emmanuel N.

CEO

“There are some connectivity bugs, and since ZEI is still new, it requires some feedback to become easier to use and user friendly.”
AK

Axelle K.

RSE QSE

Cons

“Can sometimes be difficult to review data especially when it’s submitted by someone else.”
DP

Dan P.

Sustainability Coordinator

Cons

Not enoughreviews yet

  • Vendor responds to reviews
  • Last reviewa year ago
  • Vendor responds to reviews
  • Last review3 months ago

Key features

  • Total features48
  • AI Copilot
  • AI/Machine Learning
  • API
  • Access Controls/Permissions
  • Activity Dashboard
  • Ad hoc Reporting
  • Air Emissions Management
  • Alerts/Notifications
  • Archiving & Retention
  • Assessment Management
  • Audit Management
  • Audit Trail
  • Auditing
  • Benchmarking
  • Carbon Emissions Calculations
  • Change Management
  • Collaboration Tools
  • Compliance Management
  • Compliance Tracking
  • Corrective and Preventive Actions (CAPA)
  • Customizable Dashboard
  • Customizable Reports
  • Data Collection
  • Data Import/Export
  • Data Management
  • Data Visualization
  • Disclosure Management
  • Document Management
  • Email Alerts
  • Emission Calculations
  • Emission Reduction Planning
  • Emissions Management
  • Emissions Monitoring
  • Energy Management
  • Environmental Compliance
  • Environmental Metrics
  • Forecasting
  • Forms Management
  • Framework Management
  • Generative AI
  • Goal Setting/Tracking
  • Greenhouse Gas Tracking
  • Hazardous Materials Management
  • Incident Management
  • Initiative Management
  • KPI Monitoring
  • Mobile Access
  • Multi-Channel Data Collection
  • Multi-Location
  • Multiple Data Sources
  • Performance Metrics
  • Policy Management
  • Program Management
  • Progress Tracking
  • Reporting & Statistics
  • Reporting/Analytics
  • Scoring
  • Search/Filter
  • Secure Data Storage
  • Stakeholder Engagement
  • Status Tracking
  • Sustainability Management
  • Task Management
  • Third-Party Integrations
  • Training Management
  • User Management
  • Waste Management
  • Water Management
  • Workflow Automation
  • Workflow Management
  • Total features58
  • AI Copilot
  • AI/Machine Learning
  • API
  • Access Controls/Permissions
  • Activity Dashboard
  • Ad hoc Reporting
  • Air Emissions Management
  • Alerts/Notifications
  • Archiving & Retention
  • Assessment Management
  • Audit Management
  • Audit Trail
  • Auditing
  • Benchmarking
  • Carbon Emissions Calculations
  • Change Management
  • Collaboration Tools
  • Compliance Management
  • Compliance Tracking
  • Corrective and Preventive Actions (CAPA)
  • Customizable Dashboard
  • Customizable Reports
  • Data Collection
  • Data Import/Export
  • Data Management
  • Data Visualization
  • Disclosure Management
  • Document Management
  • Email Alerts
  • Emission Calculations
  • Emission Reduction Planning
  • Emissions Management
  • Emissions Monitoring
  • Energy Management
  • Environmental Compliance
  • Environmental Metrics
  • Forecasting
  • Forms Management
  • Framework Management
  • Generative AI
  • Goal Setting/Tracking
  • Greenhouse Gas Tracking
  • Hazardous Materials Management
  • Incident Management
  • Initiative Management
  • KPI Monitoring
  • Mobile Access
  • Multi-Channel Data Collection
  • Multi-Location
  • Multiple Data Sources
  • Performance Metrics
  • Policy Management
  • Program Management
  • Progress Tracking
  • Reporting & Statistics
  • Reporting/Analytics
  • Scoring
  • Search/Filter
  • Secure Data Storage
  • Stakeholder Engagement
  • Status Tracking
  • Sustainability Management
  • Task Management
  • Third-Party Integrations
  • Training Management
  • User Management
  • Waste Management
  • Water Management
  • Workflow Automation
  • Workflow Management

Integrations

  • Total integrations4
  • Jira
  • Lucca
  • Microsoft 365
  • Microsoft Azure
  • Microsoft Excel
  • Microsoft Power BI
  • Total integrations2
  • Jira
  • Lucca
  • Microsoft 365
  • Microsoft Azure
  • Microsoft Excel
  • Microsoft Power BI