Financial Modelling

We design bespoke financial models that give you the confidence your investment and business decisions are backed by numbers you can trust.

Our world-renowned modelling team specialises in complex modelling assignments such as regulated and digital assets, as well as portfolio modelling.

We translate those into clear and reliable models that make it quicker and easier for you to evaluate the impact of your decisions on the project and give maximum confidence to lenders.

Our financial analysts have worked on well over a thousand deals across a wide range of infrastructure sectors and countries. They are experts in project finance and understand the intricacies of these deals, as well as individual sector and country specificities.

With our in-house Tax and Accounting specialists, we can advise on the most effective tax and accounting outcome and ensure your model conforms to the most recent UK and Canadian tax legislation and accounting standards.

Made to Measure

Our team specialises in developing solutions for clients with complex assets and modelling needs.

Our models do not come off the shelf. Instead, we design bespoke financial models that meet your business needs and save you time.

Whether you need a model to support a specific transaction or as an ongoing performance monitoring tool, our models consider your business objectives, the form of your financial inputs and the flexibility of scenarios you wish to consider.

We believe that models built for specific purposes offer you the best useability and longevity.


Our modelling team works as one unit across model development and model audit. We integrate the precision associated with model audit into every model we develop.

We thoroughly test each model through built-in tailored audit checks to provide greater confidence that the results are reliable

Our typical model contains well over 100 separate audit checks, so you can have the same confidence in our model development services as you have in our audit practice.

Our modelling approach follows the methodology outlined by the Institute of Chartered Accountants of England and Wales. It is widely acknowledged as one of the most transparent and established examples of best practice modelling in the industry.

Easy to Use

Our mission is to bring clarity to your project regardless of its complexity. We build models that are easy to use and read and allow each stakeholder to access the relevant information to support their specific needs.

We focus on adopting a simple and straightforward structure, offering you great flexibility in running multiple scenarios and sensitivities analysis; key to the decision-making process.

Reasons to have your model built by Operis

Masters of modelling complexity

Our analytical approach to modelling and problem-solving mindset allows our team to translate complex modelling needs into clear, easy-to-use models.


Our modelling methodology omits unnecessary repetition unlike the methodologies used by some of our competitors. Our models are therefore smaller, less prone to errors, easier to follow, and quicker and cheaper to audit.


We are constantly expanding the range of types of models that can be practically built in Excel, and thus can deliver complex (yet easy-to-use) solutions that our competitors cannot.


Our models are always output-focussed, thus ensuring that any stakeholder using the model can quickly evaluate the key risks and make informed decisions.

Financial Modelling Services

Transactional Model

The complexity and differentiator of transactional modelling often lies with the structuring of senior financing. We support you by providing optimal solutions to complex covenants and constraints. Our award-winning modelling team has particular specialisms in infrastructure, energy transition and digital.

Together with advisory team, we offer the full suite of transactional support services.

We do not have a fixed scope of work with our modelling assignments. Our mandates range from spending a few days improving an existing model to full model development, modelling sensitivities for various credit committees, running model audit processes and supporting clients through to financial close.

Asset Management Modelling

We support asset managers around the world to efficiently monitor, assess and report on asset performance.

Our asset management models can receive historic data in almost any form, and the forecast projections will adapt accordingly. They allow you to focus on evaluating the critical financials of a project rather than wasting time updating an unwieldy model.

Our models are designed, inter alia, efficiently to:

  • produce key outputs for inclusion in management reports
  • calculate cover ratios and perform distribution tests
  • manage cash reserve contributions
  • manage planned as well as triggered payment mechanisms
  • predict the effect of possible change to the existing contractual arrangements
  • compare outcomes (budget vs actuals)

Portfolio Modelling

We offer asset managers an innovative and flexible approach to monitor their multi-asset portfolios.

We have created a Master Controller Dashboard. It allows you to run multiple scenarios and sensitivities across many models and collate the findings in a single spreadsheet containing a user-friendly dashboard.

Our Master Controller Dashboards enable you to efficiently:

  • aggregate results from multiple assets
  • extract KPIs
  • analyse the portfolio by geography, sector and asset class
  • apply upside and downside scenarios to individual SPVs

Not only does this save hours of analyst time, but it also reduces the errors associated with repetitive actions. It improves decision making with easy access to in-depth KPIs, consolidated statements and fund-level sensitivities.


financial analysts/Modellers


years in business


projects Worldwide

Project Value Country Year  
Muharraq Sewage Treatment Plant Operating Model £245 m Bahrain 2021

Operis developed an operating model for Muharraq Sewage Treatment Plant Company to monitor its project to build a sewage treatment plant with a capacity to process 100,000 cubic metres per day, and a deep gravity sewer system to serve the people of Muharraq and Hidd in the Kingdom of Bahrain.

Belfast City Airport Operating Model £34 m United Kingdom 2020

3i acquired George Best Belfast City Airport in 2016 and refinanced its corporate debt facilities in 2018. The airport had around 2.7m passengers in 2019, and Operis has since developed an operating model for 3i and the Belfast City Airport management team to monitor the airport's performance, and produce cashflow forecasts.

Éolienne Belle-Rivière Transactional Model £44 m Canada (Quebec) 2020

Operis built a model to assist Algonquin and NBF price and structure the Éolienne Belle-Rivière 24 MW wind farm in Quebec, Canada. EBR secured a 20-year power purchase agreement from Hydro Quebec.

East Midlands Rail Franchise Operating Model £487 m United Kingdom 2020

The project involved the financing of rolling stock operating on the East Midlands franchise.
Operis developed a financial model to monitor the project as it progresses.

Gentse Warmte Centrale Transactional Model £100 m Belgium 2020

Operis developed the financial model used by Equitix and Belgium Eco Energy to price and structure Genste Warmte Centrale (GWC), a 19.9MW biomass plant near Ghent in Belgium.
GWC will process around 150,000 tonnes of waste wood each year.

Stanton Territorial Hospital Operating Model £129 m Canada (Northwest Territories) 2019

This project reached In December 2018, the new Stanton Territorial Hospital, located in Northwest Territories, Canada, reached substantial completion. Operis was then asked to develop a financial model to monitor the project as it progresses.

Kampala-Jinja Expressway Transactional Model £667 m Uganda 2018

Operis provided both modelling and model audit support to IFC to help them in their procurement of the Kampala-Jinja Expressway PPP project, which is a 95km road and important trade route from Kampala, the capital of Uganda to the source of the River Nile at Jinja.

Rampion Offshore Wind Farm Operating Model £1,300 m United Kingdom 2017

Operis developed an operating model for Eon and the Green Investment Bank to monitor the 400MW Rampion Offshore Wind farm, near Brighton in the UK.


University Partnerships Programme

The University Partnerships Programme (UPP) is the UK's leading provider of student accommodation infrastructure, owning and managing over 36,000 rooms across 15 universities.

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Project Allenby/Connaught, UK barracks and accommodation

Improving the quality of life for approximately 18,700 soldiers living and working at the garrisons.

Read more

Let's talk about your specific modelling needs.

To help us determine how we can best assist you with your project, we need to understand your business objectives, the purpose of the model and the different audiences it may serve.

Get in touch


Please get in touch with either of our regional offices.
Chris Aldred

+44 207 562 0433

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Jun Tao

+44 207 562 0428

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Michael Jarman

+1 647 243 8016

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Philip Allen
Head of Training [javascript protected email address]

Operis Europe

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+44 207 562 0400
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Operis North America

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+1 647 846 7382
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Discuss your requirements with us
Michael Jarman

+1 647 243 8016

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Jun Tao

+44 207 562 0428

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