Summary
Sustainability is becoming an increasingly important part of doing business in construction. Whether you're responding to a pre-qualification questionnaire (PQQ), working towards Net Zero or strengthening your environmental credentials, clients are increasingly asking suppliers to demonstrate their sustainability performance. The Mobilize Sustainability Assessment has been designed to make that process simple. Rather than completing different sustainability questionnaires for multiple clients, suppliers complete a single structured assessment that measures their sustainability performance, records supporting evidence and provides instant feedback on where they are performing well and where improvements can be made. The same assessment can then be viewed by participating supply chain owners, reducing duplicated effort. In this guide, we'll explain how to register, complete your assessment and make the most of the information it provides.
What Is the Mobilize Sustainability Assessment?
The Mobilize Sustainability Assessment is a supplier self-assessment that evaluates your organisation across a broad range of sustainability topics.
Once completed, you'll receive:
- An overall sustainability score
- An A–D performance band
- Scores across individual sustainability pillars
- A breakdown of your carbon emissions
- Progress against your own reduction targets
- Recommendations on where improvements can be made
Unlike many questionnaires that simply collect information, the Mobilize Sustainability Assessment is designed to help suppliers understand and improve their own sustainability performance while also providing trusted information to their clients.
Who Can Complete the Assessment?
Any supplier with access to Mobilize can complete the Sustainability Assessment.
The assessment is particularly valuable for organisations looking to:
- Demonstrate sustainability credentials
- Record Scope 1, Scope 2 and Scope 3 emissions
- Support Carbon Reduction Plans
- Improve procurement responses
- Measure environmental progress year after year
Whether you're just starting your sustainability journey or already have established environmental processes, the assessment provides a structured way to measure and evidence your progress.
How to Sign Up
Getting started is straightforward.
Step 1 – Register on Mobilize
If you've been invited by one of your clients, follow the registration link provided in your invitation email and create your Mobilize account.
If you already have a Mobilize account, simply log in using your existing credentials.
Step 2 – Access the Sustainability Module
Once logged in, navigate to the Sustainability section within your dashboard.
From here, you can begin a new Sustainability Assessment or continue one you've already started.
Step 3 – Gather Your Information
Before beginning, it's helpful to have the following available:
- Carbon emissions data
- Environmental policies
- Carbon Reduction Plan (if applicable)
- ISO certificates
- Renewable electricity information
- Sustainability targets
- Supporting evidence
Having these documents ready will make the assessment much quicker to complete.
How to Complete the Sustainability Assessment
The assessment is divided into a number of sections, each focusing on a different aspect of sustainability.
Simply answer each question as accurately as possible and upload supporting evidence where requested.
Mobilize provides guidance and explanations throughout the assessment to help you understand what each question is asking.
The assessment measures performance across nine key sustainability pillars:
- Governance
- Carbon Emissions
- Energy
- Reduction Targets
- Water & Nature
- Supply Chain Due Diligence
- Labour & Human Rights
- Business Ethics
- Climate Resilience
Each pillar contributes towards your overall sustainability score.
Upload Supporting Evidence
Where possible, support your answers by uploading relevant documentation.
Examples include:
- ISO 14001 certificates
- Environmental policies
- Carbon Reduction Plans
- Modern Slavery Statements
- Renewable electricity certificates
- Sustainability policies
Rather than simply recording "Yes" or "No", Mobilize stores the evidence behind each answer, making it easier for both suppliers and clients to verify environmental commitments.
Recording Your Carbon Emissions
One of the most valuable parts of the assessment is the ability to record greenhouse gas emissions.
Suppliers can record:
- Scope 1 emissions
- Scope 2 emissions
- Scope 3 emissions
along with the reporting year, calculation methodology and assurance information where available.
This creates a clear record of your environmental performance and supports wider sustainability reporting.
Setting Sustainability Targets
The assessment also allows organisations to record their own carbon reduction targets.
This includes:
- Base year
- Target year
- Reduction target
- Science Based Targets initiative (SBTi) status where applicable
Recording these targets enables Mobilize to monitor progress over time rather than providing only a one-off snapshot.
Understanding Your Results
As soon as the assessment is complete, you'll receive an instant result.
This includes:
- Overall score
- Performance by sustainability pillar
- Carbon emissions summary
- Renewable electricity information
- Reduction target progress
Rather than simply telling you whether you've passed or failed, Mobilize highlights both strengths and opportunities for improvement.
Track Progress Year After Year
One of the biggest advantages of the Mobilize Sustainability Assessment is that it isn't just a one time questionnaire.
Each reassessment builds a historical record, allowing you to:
- Compare previous results
- Measure improvements
- Demonstrate progress
- Identify long-term trends
This makes it much easier to evidence continual improvement to clients and stakeholders.
Forecast Whether You'll Meet Your Targets
Mobilize goes beyond simple reporting.
Using your historical emissions data and the reduction targets you've entered, the platform projects whether your current trend is on track to achieve your stated goals.
The forecasting view includes:
- Emissions trends over multiple years
- Your required reduction pathway
- A projected forecast line
- A plain English explanation of whether you're on track or where further improvements are needed
This gives organisations valuable insight into future performance, not just historical data.
Why Completing the Assessment Matters
Completing the Sustainability Assessment offers benefits beyond compliance.
It can help you:
- Better understand your environmental performance
- Identify opportunities for improvement
- Record trusted sustainability evidence
- Support Carbon Reduction Plans
- Demonstrate progress to clients
- Reduce duplicated questionnaires
- Strengthen procurement submissions
- Prepare for future reporting requirements
Most importantly, it provides a structured framework for continuous improvement.
Benefits for Your Clients
The assessment doesn't just benefit suppliers.
Supply chain owners can also:
- View supplier sustainability scores
- Monitor emissions and targets
- Review uploaded evidence
- Compare suppliers consistently
- Support their own sustainability reporting
This reduces administration for both parties while creating greater transparency across the supply chain.
Built Around Recognised Standards
Every question within the Sustainability Assessment has been mapped to recognised environmental, social and governance frameworks, including:
- GHG Protocol
- ISO 14064
- Science Based Targets initiative (SBTi)
- ISO 14001
- TCFD
- CDP
- RE100
- UK Modern Slavery Act
- ISO 45001
- GRI
- CSRD / ESRS
This means your assessment is aligned with standards that clients and stakeholders already recognise.
Conclusion
Sustainability is no longer just about demonstrating compliance, it's about understanding where your organisation stands today and identifying opportunities to improve tomorrow.
The Mobilize Sustainability Assessment provides a practical, structured way to measure sustainability performance, record evidence, monitor carbon emissions and track progress over time.
Whether you're responding to client requirements, developing your sustainability strategy or simply looking to benchmark your organisation, the assessment gives you the information you need to move forward with confidence.
Complete it once, keep it up to date, and use it as a foundation for continual improvement.
Posted on 27 Jul 2026
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