Ensure our product development utilises cloud compute providers that are committed to Net Zero emissions and/or are moving toward renewable energy use for their cloud infrastructure.
Carbon Reduction Plan
Harrison-AI Medical UK Ltd is committed to achieving net zero emissions by 2045.
Baseline Emissions Footprint vs Current Emissions Footprint
Baseline emissions are a record of the greenhouse gasses that have been produced in the past and were produced prior to the introduction of any strategies to reduce emissions. Baseline emissions are the reference point against which emissions reduction can be measured.
| Emission Scope | Baseline Emissions, 2023 (tonnes CO2e) 1 Jul 2023 – 30 Jun 2024 | Baseline Emissions, 2025 (tonnes CO2e) 1 Jul 2025 – 30 Jun 2026 |
|---|---|---|
| Scope 1 | 0.0000 | 0.0000 |
| Energy Purchased (Sites, Other Emissions)** | 0.0000 | 0.0000 |
| Company Cars (Company Cars, Other Emissions) | 0.0000 | 0.0000 |
| Delivery Vehicles (Delivery Vehicles, Other Emissions) | 0.0000 | 0.0000 |
| Air Conditioning / Refrigerants (Other Emissions) | 0.0000 | 0.0000 |
| Scope 2 | 0.0000 | 0.0000 |
| Electricity (Sites, Other Emissions)** | 0.0000 | 0.0000 |
| Scope 3 | 33.5129 | 26.5897 |
| Purchased Goods and Services (Sites, Other Emissions)** | 0.0000 | 0.0000 |
| Capital Goods (Other Emissions) | 0.0000 | 0.0000 |
| Fuel & Energy Related Activities (Other Emissions) | 0.0000 | 0.0000 |
| Upstream Transportation & Distribution (Freighting Goods (Upstream), Other Emissions) | 0.0000 | 0.0000 |
| Waste Generated in Operations (Waste Disposal, Other Emissions) | 0.0000 | 0.0000 |
| Business Travel (Hotels, Air Travel, Public Transport & Hire Cars, Employee Owned Vehicles, Company Cars, Other Emissions) | 30.2839 | 18.8193 |
| Employee Commuting (Home Working, Employee Commuting, Other Emissions) | 3.2290 | 7.7704 |
| Upstream Leased Assets (Other Emissions) | 0.0000 | 0.0000 |
| Downstream Transportation & Distribution (Freighting Goods (Downstream), OtherEmissions) | 0.0000 | 0.0000 |
| Processing of Sold Products (Other Emissions) | 0.0000 | 0.0000 |
| Use of Sold Products (Other Emissions) | 0.0000 | 0.0000 |
| End of Life Treatment of Sold Products (Other Emissions) | 0.0000 | 0.0000 |
| Franchises (Other Emissions) | 0.0000 | 0.0000 |
| Investments (Other Emissions) | 0.0000 | 0.0000 |
| Total | 33.5129 | 26.5897 |
| ** Generated from renewable sources * includes WTT | 0.0000 | 0.0000 |
Carbon Reduction: Projected vs Actual
In order to continue our progress to achieving Net Zero, we have adopted the following carbon reduction targets. We project that carbon emissions will decrease over the next years to 3.3513 by 2045 this is a reduction of 90%
Information About our Organisation
Harrison.ai is a clinician-led healthcare AI company founded in Sydney, Australia by Dr Aengus Tran (Chief Executive Officer) and Dimitry Tran. Our mission is to scale global healthcare capacity, improve outcomes and save lives, using AI to support clinicians and elevate the care they provide. Our technology spans diagnostic radiology — AI decision-support for chest X-ray and CT brain imaging. Our solutions are used across more than 1,000 sites in over 40 countries, supporting more than 3,400 clinicians and around 7 million patient cases.
In September 2025, Harrison.ai and Annalise.ai united as one company, Harrison – a strategic consolidation bringing the healthcare AI provider’s radiology solutions under a single global brand. The consolidation was reflected at the corporate level in the United Kingdom, where our UK entity was formally renamed from Annalise-AI UK Ltd to Harrison-AI Medical UK Ltd. The United Kingdom and Ireland is one of Harrison’s key markets. Our radiology AI is deployed across more than 40 NHS Trusts, including national and regional rollouts supporting faster lung cancer and chest X-ray triage.
Our UK & Ireland operations are delivered by a home-based workforce as part of our evolution into a unified global company, and our UK & Ireland activity is the focus of this Carbon Reduction Plan. Application during contract delivery The environmental management measures and carbon reduction commitments set out in this Carbon Reduction Plan are, and will remain, in effect across Harrison-AI Medical UK Ltd’s operations. Harrison-AI Medical UK Ltd confirms that these measures will be applied and maintained during the performance and delivery of any contract awarded to us, and that emissions arising from the delivery of such contracts will be managed in line with the reduction commitments and net zero trajectory described in this plan.
Additional Details About our Emissions and Targets
2025
Harrison.ai’s UK & Ireland workforce expanded through 2025 as part of our evolution into a unified global company, and our emissions in that year rose accordingly, from 33.51 tCO₂e in 2024 to 43.13 tCO₂e in 2025. This reporting year (1 July 2025 – 30 June 2026), our total UK & Ireland emissions fell to 26.59 tCO₂e — a reduction of approximately 38% against 2025. This reduction reflects the governance and low-carbon travel measures implemented, alongside more disciplined business-travel planning. We remain committed to ensuring that every new team member understands our focus on carbon reduction across all aspects of our global operations, as we work toward our commitment to reach net zero by 2045.
As a remote-first company, we use technology to enable communication and collaboration across our operations, removing the need for daily commuting and the transportation emissions it would generate. This is borne out in our own data. Across our 20 UK & Ireland employees this year, staff worked from home on 2,910 of their working days (3356 total working days across 20 staff members) — an average of around 145 working-from-home days each (out of a total of 167 days on average per employee), equivalent to roughly 87% of all working days. By contrast, the average employee spent only about 22 days a year travelling for work. Day-to-day delivery therefore no longer depends on routine business travel. Where travel does occur, it is predominantly domestic travel within the UK & Ireland, undertaken by the most sustainable means available.
Employees use public transport wherever possible: rail is by distance the single largest mode of surface travel logged, accounting for around 89% of our 58,155km of ground travel. International air travel is comparatively infrequent — a small number of longer trips — but, being long-haul, it accounts for a disproportionate share of travel-related distance and emissions. Of approximately 38,367 flight kilometres recorded, 76% related to short haul to/from UK&I journeys, while domestic UK&I flights made up 19%
and the remaining 5% are international flights not originating from UK&I. Reducing this small tail of international air travel, while continuing to favour rail and other public transport for domestic journeys, remains the primary focus of our reduction efforts.
We have focused on UK & Ireland emissions only in this Carbon Reduction Plan.
Scope 1 and Scope 2: we operate with a home-based UK&I workforce and do not maintain office buildings or require employee commuting. We do not have company cars, delivery vehicles, or freight any goods. As a software company, we do not dispose of waste. As a result, we do not have Scope 1 or Scope 2 emissions.
Scope 3: we do not import, distribute, or dispose of goods to or within the UK&I region, as our software business operates entirely through web-based platforms. Our Scope 3 emissions arise principally from business travel — flights, rail and other surface travel, and associated hotel stays – which is the focus of our reduction efforts.
2024
The number of Annalise.ai UK based employees increased in 2024 due to Company expansion. The total emissions figure for 2024 reflects this increase. As our UK based team increases in number, we continue our commitment to ensure each new employee is aware of our focus on carbon reduction across all areas of our company. We actively encourage the use of public transport by all our employees. Our commitment to reducing carbon emissions continues to align with the NHS’s decarbonisation goals, even as a primarily software-centric provider. As a remote-first company we leverage advanced technology to facilitate communication and collaboration, diminishing the need for commuting and thereby cutting transportation emissions significantly.
We have focused on UK emissions only in this Carbon Reduction Plan. Scope 1 and Scope 2: We have a home-based UK workforce so do not have an office building nor any employee commuting, we do not have company cars, we are a software company so we do not use delivery vehicles nor do we freight any goods, we do not dispose of any waste. As a result, we do not have Scope 1 or 2 emissions. Scope 3: We do not import, distribute or dispose of goods to/in the UK as our software business is web based.
2023
Annalise.ai UK Ltd’s commitment to reducing carbon emissions aligns with the NHS’s decarbonisation goals, even as a primarily software-centric provider. As a remote-first company we leverage advanced technology to facilitate communication and collaboration, diminishing the need for commuting and thereby cutting transportation emissions significantly. We actively encourage the use of public transport by all our employees. As our UK based team increases in number, we are committed to ensuring each new employee is aware of our commitment to carbon reduction across all areas of our company.
We have focused on UK emissions only in this Carbon Reduction Plan. Scope 1 and Scope 2: We have a homebased UK workforce so do not have an office building nor any employee commuting, we do not have company cars, we are a software company so we do not use delivery vehicles nor do we freight any goods, we do not dispose of any waste. As a result, we do not have Scope 1 or 2 emissions. Scope 3: We do not import, distribute or dispose of goods to/in the UK as our software business is web based.
Carbon Reduction Projects
The following environmental management measures and projects are currently in progress or have been completed since the 2023 baseline.
Actions In Progress
Increase efficiency of product development to minimise embedded carbon
Target Completion Date: 31/12/2028
Objective
Target
To encourage our supply chain to adhere to eco-friendly practices by preferring vendors with proven commitments to sustainability.
Action, Improvement or Control
Action: Monitor carbon output statistics.
Create a global Carbon Reduction Plan for the Company
Target Completion Date: 24/02/2027
Objective
Maintain a Board‑approved net zero target and publicly available Carbon Reduction Plan, updating the UK facing policy to a Global Policy in 2027.
Target
To include Scope 1, Scope 2 and relevant Scope 3 emissions, and report progress each year to senior leadership and, where requested, to NHS customers.
Action, Improvement or Control
Action: to ensure all data collection points are running smoothly and regular reports are collated.
Completed Actions
Carbon Reduction Education Plan
Completion Date: 31/01/2025
Estimated Carbon Reduction: 0.0000
Objective
To ensure all employees are aware of the impact of their travel choices and its impact on the Company’s Carbon Reduction Plan.
Target
Action, Improvement or Control
Action: Carbon Reduction Education Plan to be created.
Impact
Our Carbon Reduction Education Plan has been created and rolled out across the Company, ensuring all employees understand the impact of their travel choices. This Education Plan will enable us to continue working toward a reduction in carbon emissions across the company in line with our commitment to net zero by 2045.
Roll out procurement policy for IT assets
Completion Date: 31/01/2025
Estimated Carbon Reduction: 0.0000
Objective
To define our vendor standards for IT assets procurement with a focus on vendors with Net Zero targets by 2030.
Target
Action, Improvement or Control
Action: Define vendor standards for IT assets.
Impact
Creating an IT Assets Procurement Sustainability Policy has enabled the Company to integrate sustainability into all procurement decisions, ensuring transparency and accountability in vendor selection and performance. The Company is committed to prioritising vendors with verified Net Zero targets by 2030.
Implement an enhanced Global Low-Carbon Travel Policy
Completion Date: 30/06/2026
Estimated Carbon Reduction: 0.0000
Objective
Implement and maintain an enhanced global low‑carbon travel policy, to reduce business travel and commuting emissions. Review this more focused policy annually to ensure the global workforce aligns ready for 2027 Global Carbon Reduction Policy reporting.
Target
Action, Improvement or Control
Action: ensure all regions are aligned on the travel policy and actively reducing their footprint.
Impact
An enhanced low-carbon travel policy has been implemented and embedded across our operations, setting a clear travel-mode hierarchy that prioritises virtual-first collaboration and, where travel is necessary, public transport over flying, with non-essential flights restricted and economy class the default when flying is unavoidable. The policy is reviewed annually to ensure it keeps pace with our growth and aligns the global workforce ahead of 2027 Global Carbon Reduction Plan reporting. It is already
reflected in behaviour: rail accounts for the large majority of surface-travel distance logged this year, staff worked from home on around 87% of working days, and business-travel emissions reduced year-on-year against our 2023 baseline – the policy’s primary KPI. With the policy in place, operational and on an annual review cycle, this action is considered complete.
More UK recruitment to reduce impact of international business travel
Completion Date: 30/06/2026
Estimated Carbon Reduction: 0.0000
Objective
To increase the number of UK and regional employees to ensure interaction with clients keeps international travel to a minimum.
Target
Action, Improvement or Control
Action: Ensure employees are hired regionally to reduce the amount of international travel that is required.
Impact
Delivered through our 2025 move to a squad-based operating model, under which UK & Ireland now operates as its own squad with a dedicated squad
lead and in-region team. This means UK client, partner and NHS engagement is owned and serviced locally rather than by colleagues travelling in from other regions, embedding the principle that only key personnel travel internationally, and only when essential. The impact is evident in this year’s data: across our 20 UK & Ireland employees, staff worked from home on around 87% of working days (an average of ~145 days each, versus ~22 travel days), total UK emissions fell to 26.5897 tCO₂e (approximately 21% below our 2023 baseline), and the travel that did occur was predominantly domestic — largely by rail — with international air travel limited to a small number of essential trips. This evidences reduced reliance on international business travel and a corresponding fall in Scope 3 emissions against the action’s KPI. Action complete.
Renewable Energy – data servers
Completion Date: 31/12/2025
Estimated Carbon Reduction: 0.0000
Objective
To create partnerships with green energy providers to ensure that the data centres hosting our services run on renewable energy.
Target
Action, Improvement or Control
Action: Team leader to gather information from any companies we subcontract to and monitor their commitment to renewable energy sources and carbon reduction.
Impact
This has enabled regular monitoring of our cloud provider’s renewable energy commitments and performance against their sustainability goals.
This has also ensured we are up to date with their published sustainability reports and carbon footprint data to ensure alignment with our environmental standards.
Declaration and Sign Off
This carbon reduction plan has been completed in accordance with PPN 006 and the associated guidance and reporting standard for Carbon Reduction Plans.
Emissions have been reported and recorded in accordance with the published reporting standard for Carbon Reduction Plans and the GHG Reporting Protocol corporate standard
1 and uses the appropriate Government emission conversion factors for greenhouse gas company reporting 2.
Scope 1 and Scope 2 emissions have been reported in accordance with SECR requirements, and Scope 3 emissions have been reported in accordance with the published reporting standard for Carbon Reduction Plans and the Corporate Value Chain (Scope 3) Standard 3.
This Carbon Reduction Plan has been reviewed and signed off by the board of directors (or equivalent management body).
Kevin Cheng
Chief Financial & Operating Officer 01/10/2026
The methodology used to calculate the organisation’s greenhouse gas emissions in this report is based on:
https://www.gov.uk/government/collections/government-conversion-factors-for-company-reporting