Get Started With Our Free Course: Essential Financial Modelling

Reliable results you can trust.

Model Audit 2.0

50+ years’ experience, an innovative approach, specialised knowledge, expert financial model audit delivery.

We bring clarity to decision making

Our team has over 50 years of combined expertise in financial model audits. We have completed numerous global audit assignments, giving us a deep understanding of the unique challenges and opportunities in different markets. This experience allows us to provide you with valuable insights into your financial models.

Model Audit re-imagined

Here at Gridlines we have taken on the challenge of moving the industry forward.

We have a relentless drive towards increasing speed, efficiency, innovation, and insight. This makes the whole process as easy as possible for our clients. Contact one of the team today to find out more about our model audit delivery process. We use our own in-house software to dramatically reduce our audit lead times.

We've worked with some of the best...

Expert modelling for industry leading institutions.

The complete audit experience

6 ways we are re-inventing model audit

A faster audit

We use the latest public tools for online collaboration, and our own proprietary software to dramatically reduce audit times.

A fixed fee with no surprises

We offer a fixed fee and we do not charge by the iteration or the sensitivity.

A proven methodology

We combine a parallel build approach with targeted cell by cell and rigorous graphical stress testing.

A focus on solutions

We will work collaboratively with you, suggesting solutions wherever we can.

In-depth insight

We use our proprietary software tools to stress test your model and share valuable insight.


Our team brings together best practice from across the industry to give you the assurance you need. We are backed by major insurers with liability cover in the millions.

Download our Model Audit brochure

Learn more about our Audit 2.0 delivery process, the team, and more in our Model Audit 2.0 Brochure. Get your copy now.

Industry-leading financial model audit services

1 +
Expert Financial Auditors
$ 1 bn+
Value of completed projects
1 +
Years of industry experience

What our customers have to say

A team you can trust

A trusted team of financial auditors. We provide high-quality auditing services to ensure accurate and transparent financial statements. With a proven track record, we can help you mitigate financial risks and make informed decisions.

Danny Leitch


Danny is a founding partner of Gridlines and has over 20 years of experience in financial modelling and project finance. Danny has led modelling teams within Grant Thornton, EY and F1F9 and has been responsible for over 100 model build and review assignments. Danny is a qualified accountant and financial modelling expert.

Peter Rebecchi


Peter brings 14 years of model audit and analytical experience. He was previously Head of Model Audit and Financial Modelling at Operis. He brings deep experience across many sectors in Project Finance, including PPP bids, digital, power and renewable energy projects, as well as corporate M&A transactions. Peter’s past projects cover many countries globally, with a significant portion in Canada and the US, having previously led the initial Operis Toronto team (2014 – 2016).

Paul Myers


Prior to joining Gridlines, Paul was Managing Director of Operis, a leading provider of financial model audit and analysis to global infrastructure projects. Under Paul’s leadership Operis doubled the size of its model audit business to match the scale of international accounting firms, consistently ranking in the top three global providers.

Morag Loader

Director of Tax & Accounting

A Finance Director and Head of Tax and Accounting in her previous role, Morag brings more than 20 years of experience in advising on the accounting and tax treatments of Project Finance and Infrastructure projects. Morag trained at top tier accounting practices, Deloitte and KPMG. She is a member of the Chartered Institute of Taxation’s Corporate Taxes Sub-Committee and has lectured and provided training on a variety of subjects including tax and accounting for PPP and other aspects of corporation tax.

Let's talk...

If you need help with a model, or would like to hear more about our service, please give us a call on +442392 16 0672. Or get in touch below.

Contact Us

Tell us about your project...

Danny Leitch


Peter Rebecchi

/Head of Model Audit