About Nauvoo Ventures

Finance expertise that becomes part of your business.

Nauvoo Ventures offers growing businesses access to the financial expertise they need — at the level they need it and for as long as they need it.

Our approach

Financial expertise built around your business.

From corporate finance advice, day-to-day accounting support to financial control, strategic direction and specialist projects, we can provide an individual expert or assemble a complete finance function around your business.

You gain the experience and capability of an in-house team without the cost or commitment of employing every role full-time.

More than outsourced finance

We go beyond the numbers to drive better performance.

We do not believe valuable financial support begins and ends with producing a set of management accounts.

We work closely with business owners and leadership teams to understand how their organisations really operate. By getting beneath the numbers, we can identify risks, uncover opportunities and introduce the reporting, processes and financial discipline needed to make better decisions.

Whether you need to resolve an immediate challenge, strengthen an existing finance team or prepare the business for its next stage of growth, our support is practical, commercially focused and tailored to your priorities.

Built around your business

Flexible support, tailored to you.

No two businesses need precisely the same kind of financial support. That is why our service is deliberately flexible.

Outsourced finance team

Ongoing support as your outsourced finance team.

Finance Director or Controller

Part-time senior expertise when you need it.

Reporting & forecasting

Management accounts, budgeting, forecasting and cash-flow modelling.

Independent reviews

Reviews of finance teams, systems and reporting.

Corporate Finance

Support for commercial projects, transactions and business change.

A closer kind of partnership

More involved. More useful. More connected.

We choose to work with a focused number of clients so that we can become genuinely involved in their businesses.

That means being available, asking the right questions and providing clear, honest advice — not simply reporting what has already happened.

Our role is to give leaders greater confidence in their financial position and help turn that understanding into stronger performance and sustainable growth.

We call it performance through partnership.
20+
years of professional practice and senior in-house finance experience
Experience that makes a practical difference

Experience that works in the real world.


Nauvoo Ventures was founded by Marie-Anne Jeffery following a career spanning more than 20 years across professional practice and senior in-house finance roles.

Marie-Anne saw that many SMEs needed high-level financial and commercial expertise but could not — or did not need to — build a complete senior finance function internally.

Nauvoo was created to close that gap.

Today, the business combines Big Four experience, board-level insight and hands-on financial expertise to support organisations across South Wales and beyond.

Corporate finance advice

Helping you navigate the decisions that shape your business.

Major transactions can shape the future of a business. We provide commercially focused corporate finance advice to owners and management teams at every stage of that journey.

Our team has successfully led and negotiated management buyouts and advised business owners on company disposals. We work closely with clients to understand their objectives, assess the financial implications and manage the transaction from initial planning through to completion.

  • Management buyouts and buy-ins
  • Business disposals and exit planning
  • Financial modelling and business valuations
  • Deal structuring and funding support
  • Financial due diligence
  • Negotiation with buyers, sellers, funders and professional advisers
  • Coordination of the transaction through to completion

Detailed financial analysis. Practical, board-level guidance.

We combine detailed financial analysis with practical, board-level guidance, helping clients navigate complex negotiations, protect value and approach important decisions with confidence.

Let’s strengthen your financial foundations.

Whether you need an entire outsourced finance function, specialist corporate finance advice, additional senior expertise or focused support for a particular challenge, Nauvoo can build the right solution around your business.

Talk to our team →