top of page
GRAY advisory! logo
GRAY logo

Investor-ready financial modelling

Investor-ready financial modelling 

From first pitch to selling out, we help you build, polish and present bullet-proof financial forecast models.

Some of our clients

We build models for a broad range of companies, helping with fundraising and strategy.​​​​

Visible Logo

D2C Hardware & Software

Seed

Model build

£2.5m equity raise

scan.com logo

Marketplace

Series C

Model Review + Dashboard

Equity raise + Debt facility

GXP Engaged, Auditing Services

Consultancy

Private Equity MBO

Model build

£Undisclosed

Read more

Definely logo

Enterprise SaaS

Series A

Model build

$7m equity raise

Read more

ARK

D2C Subscription

Pre-Seed

Model build

$2m equity raise

Read more

SONICJOBS logo with bullseye target

Recruitment Tech Marketplace

Series A

Model review + Dashboard

$5.5m equity raise

MANAKHOMES logo

Property Developer

Growth stage 

Model build

Equity raise + Senior debt

DREAMSAKE logo

Drinks Brand - D2C/Retail/Wholesale

Pre-Seed

Model build

Equity raise

81%

of the companies we've

built models for have gone on to successfully raise funds¹.

We have helped companies raise over

£200m.

We help...

Early-Stage Founders (Pre-Seed & Seed)

Looking to raise your first investment round or plan your business? 

We are specialists in building models for early-stage companies.

Growth Stage Teams (Series A/B/C+)

Already raised and scaling fast?

We can either build you a bespoke model, or review and refine your existing model, including a dynamic Dashboard with the key metrics that matter.

Founders and Operators Exploring Buyouts or Debt

Need support for a management buyout, strategic acquisition, or debt raise?

We design complex, lender- and buyer-friendly models to help you negotiate confidently.

What we do...

Model Builds 

Bespoke models built from the ground up for fundraising, M&A, management buyouts, or debt scenarios.

Includes an investor-hat review of inputs, outputs and metrics.

Available for both early-stage and later-stage companies.

Model Reviews

We review your existing model, refine the logic, and create beautiful dashboards to tell your growth story. 


New: Early-stage model + Deck Review 
Are you at pre-Revenue/Seed stage and already have a model and deck? We'll review both and give you practical, fast feedback to sharpen your fundraising story.

Training course

How to build a VC-Ready Financial Model

 

A 1 day intensive course teaching CFOs, FCs and Founders how to build credible, investor-ready models.

Includes our signature Excel template.

Ongoing support

- Model updates

- Investor deck reviews

- Financial Due Diligence process support

Why Founders and CFOs work with us...

Because our Founder has sat on the other side of the table

GRAY Financial Modelling is led by Joe Hartman — a former VC investor who now sits on the Investment Committee of an early-stage tech fund.

 

Joe has reviewed hundreds of financial models, giving him a sharp eye for what gets investor buy-in (and what doesn’t).

When Joe builds or reviews a model, he does it through the lens of an investor:

- Is this credible and defensible?

- Does it align with the pitch narrative?

- Are the metrics telling the right story?

He ensures every model stands up to scrutiny which gives you and your investors confidence in the vision and the plan to get there.

Joe Hartman
"Joe is unique. He combines impressive financial modelling skills with VC investment experience and provides commercial, honest feedback.
It’s a powerful combo."
Bald man with a beard, smiling
Adam Levene
Founder, Hero and 37W Investments

What our clients say

"I wouldn't look any further than GRAY for a forecast model. The structure and sophistication was exactly what investors were looking for when evaluating our business. It wasn't just the model though. Joe's input was also extremely helpful during the fundraising process.”
Professional headshot of a smiling man
Nnamdi Emelifeonwu
CEO/Founder, Definely

What our clients say

"I've always been frustrated by the financial models I receive from companies, having to spend hours either re-building, or searching for input cells and KPIs. Thank goodness GRAY have finally changed the game with their financial modelling product and Founder support."
Man with glasses, beard, and white shirt
Edward Keelan
Partner, Octopus Ventures

What our clients say

"Joe balances decades of experience in Venture Capital with a uniquely measured and insightful approach. He is one of the most impressive individuals I have met in the space."
Professional man in glasses smiling
Dr. Reuben Wilcock
Head of Ventures, Blackfinch

What our clients say

"We came to GRAY at a critical juncture. What Joe was able to put together in a short period of time was nothing short of exceptional. Not only did the financial model completely realign our strategy, it presented as a seamless companion document and feedback loop for the pitch deck and brand itself. We would strongly recommend GRAY to anyone attempting to navigate the challenging and choppy waters of venture capital."
Man with beard and graying hair
Ed Bennett-Coles
Co-Founder, ARK

What our clients say

"We needed someone to help us develop our forecasts for our startup and Joe came highly recommended. Joe really took the time to understand our business and how our specific revenue model works. He developed us a sophisticated model that we could both use with our investors for our pre-Seed fundraise but also, importantly, for us to use on an operational level to track our spend and cash going forward. I would recommend GRAY to any startup needing a professional model for fundraising and operations."
Bald man smiling with hands on hips against pink background
Darren Westlake
CEO/Founder, Disco

What our clients say

“Joe was a pleasure to work with and built a fully-integrated three statement forecast model very efficiently. The modelling was high quality, reliable and flexible, which made it easy for us and the management team to adopt it. Joe, and the team at Gray, were a key part of all parties reaching a successful outcome. I wouldn’t hesitate to recommend Gray’s services.”
Professional young man smiling
David Fernie
Vice President, Kester Capital 

What our clients say

"Joe was outstanding to work with. The concept of the fully integrated model for investment was a difficult problem to solve - with multiple areas of the business we know so well having to be forecasted out with detail we hadn't previously explored. Joe worked with the thought and process of a vast organisation but with the speed and nimbleness of a small one. He quickly became a critical part of the team. A BIG thank you for your brilliant work on our growth model.”
Man's black and white portrait
Joe Jaques
Jaques of London

What our clients say

"We received so much positive feedback about your model - it definitely helped us get the fundraising round closed. Thank you.”
Man in tuxedo speaking into a microphone
Richard Remington
Co-Founder, SalesRook

What our clients say

" I was just doing a quick sweep of the data room - I couldn't help but mention that the Executive Summary tab in your financial model is BY FAR the best laid out summary tab I have ever come across! ”
Black Background
Investor
Investor

What our clients say

“Joe worked to a tight timeline for us and delivered an exceptional model to support our financial planning.”
Smiling blonde woman
Elin Haf Davies
CEO, Aparito 

What our clients say

“Our model needed tidying up for our Series A round. Gray professionalised the model, introduced sensitivity analysis and built an Executive Summary that highlighted our KPIs. I know the model impressed investors and helped us achieve our desired valuation.” 
Headshot of a man in a white shirt
Mikhil Raja
CEO, SonicJobs 

What our clients say

"'To prepare for our late-stage seed round, Joe took our existing financial model and upgraded it on multiple fronts, including a much-improved sensitivity analysis and a complex earnings predictor that took into account multiple revenue streams. He was the ultimate professional to work with and I have no hesitation in strongly recommending his services."
Man smiling with glasses
Gerry Lianos
CEO, Raffolux 

What our clients say

"Joe worked tirelessly to produce an amazingly high quality model in record time. Really good comms and a pleasure to deal with. All at a very reasonable cost. I will happily recommend Joe to friends, family and colleagues."
Smiling man in glasses and suit
Naveen Cavale
CEO, Real Plastic Surgery 

What our clients say

"Most start-ups find it challenging to create a strong financial model due to its complexity, and our company was no different. Despite my background as a data analyst and creating a decent model, it lacked clarity. Luckily, Joe was able to assist us by restructuring the data in an appealing and easy-to-read format. He grasped our business model quickly and was very friendly and easy to talk to. I strongly recommend Joe to anyone seeking assistance with their financial model. Thank you Joe!"
Smiling professional man
Anderson Caicedo
Co-Founder, GreenBay 

What our clients say

Ready to level up your financial model?

Whether you're building your first model or polishing for a big raise, we can help. 

bottom of page