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Who Are We?

We are a team of expert business consultants based in London and New York, providing bespoke strategic solutions to our clients. Our target clients include entrepreneurs, startups, small businesses and larger enterprises that belong to a range of different industry sectors.

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Our Services

So What Do We Offer?

Financial Modelling & Analysis Read More

Company Valuation Read More

M&A Transaction Support Services Read More

Project Management Solutions Read More

Presentations & Proposals Read More

Interim CFO Service (CFOaaS) Read More

Market Research & Analysis Read More

Startup Consulting Read More

Our Expertise

Our financial Modeling

Real Estate Development & Acquisition Modeling

We have been working with real estate investors – funds as well as individual investors – for more than 10 years and building complex financial models for acquisition and development investments of mix-use properties. We specialise in alternative assets, specifically real estate, and create bespoke, dynamic and robust operational and valuation models for all types of real estate properties.

Oil & Gas Financial Modeling

Financial modeling for Oil & Gas is different from others because of a few reasons including Lack of autonomy surrounding price and revenue, asset depletion, cyclical nature of commodity prices, etc. Our team is highly experienced in building NAV models for energy projects or assets for Exploration & Production (E&P) companies and also downstream companies.

Startup Modeling

Forecasting financial performance for private companies is more challenging than it is for public companies. And it becomes even more complex if the company is a startup and has negative or no cashflows. This is where one needs to be creative and think outside of the traditional modeling techniques. Learn more about how our team can help you build the most reasonable financial model for your startup!

Real Estate Models
Private Equity Models
Budget Forecasting Models
Startup Models and Pro-formas
Valuation Models
Derivative Pricing and Valuation Models
Merger & Acquisitions Models
Who we work for

Our clients

Our consultants come from impressive backgrounds, including Investment Banking, Strategy Consulting, and Asset Management. In the last eight years, we have pivoted our company to the extent that we can serve a wide range of clientele, including:


We help both first-time and serial entrepreneurs formulate a killer business strategy

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We help enterprises by providing our M&A expertise and support both buy

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Often confused with startups, small (including micro) businesses are established companies with

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We have helped more than 1,000 businesses in the last eight years

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Non-Disclosure Agreement

We acknowledge how proprietary our client data is. We adhere to a strict confidentiality policy, and you can read more about it here.

Years of Experience
Projects Completed
Happy Clients

What Our Clients Say

We are the best business and startup consultancy in the UK & USA. But don’t take our word for it. Let’s hear what our clients have to say about ONS


Our Clients

Case Studies

Our Case Studies

While most of our work is confidential, we have listed a few of our past projects to give you an idea of the level and quality of work that we do.