Dean Street

What Dean Street does

Dean Street Advisers Limited is a London-based boutique investment banking advisory firm founded in 2012 by Mervyn Metcalf and Graeme Atkinson, both former senior bankers at Merrill Lynch and Deutsche Bank. The firm provides M&A advisory services (buy-side and sell-side) and capital raising advisory (senior debt, mezzanine capital, and equity financing) to UK-based companies and management teams. It is FCA-authorised (registration number 610024) and incorporated in England and Wales (company number 08065687), with its headquarters at Carrington House, 126-130 Regent Street, London.

The firm operates a sector-agnostic, relationship-driven go-to-market model, leveraging a network spanning UK private equity firms, senior lenders, pension and insurance funds, mezzanine providers, and family office equity investors. Its value proposition emphasises independent advice, creative transaction structuring, and willingness to raise concerns about deal suitability. Revenue is generated through transaction-based advisory fees on M&A mandates and professional services fees on capital raises, with no disclosed pricing model or subscription component.

The team consists of six professionals including three Managing Directors (the two co-founders and Karl Mrowiec), two additional team members (Ben Turrell, Sophie Ommanney), and a Healthcare Adviser (Dr Saira Ghafur). The firm has no proprietary technology platform, no software products, no external investors, no parent company, and no disclosed funding. Its disclosed track record covers M&A mandates across technology (Esyasoft), food and beverage (FreshStream), energy (Pioneer), shipping/maritime (Njord), financial services (SearchLight), and healthcare/social care (CareTech). All operations are UK-domestic, and the firm does not assert a global footprint.

Name

Dean Street

Legal name

Dean Street Advisers Limited

Website

https://deanst.co.uk

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

1–10 employees

Short description

Dean Street Advisers is a London-based boutique investment banking firm founded in 2012, providing M&A advisory and capital raising services to UK companies and management teams on a sector-agnostic, relationship-driven basis.

Ownership category

akta.pro rank

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. M&A Advisory Fees: The firm earns fees for providing M&A advisory services on both buy-side and sell-side transactions in the UK market. Fees are likely structured as transaction-based retainers or success fees.
2. Capital Raising Advisory: Dean Street advises clients on raising capital including senior debt, mezzanine capital, and equity financing, either as part of M&A transactions or on a standalone basis. Revenue is generated through advisory fees associated with successful capital raises.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Dean Street Advisers is a boutique investment banking advisory firm that advises UK businesses, management teams, and private equity sponsors on mergers and acquisitions (both buy-side and sell-side) and on raising capital (senior debt, mezzanine capital, and equity), either as part of an M&A transaction or on a standalone basis. The firm is FCA-regulated, sector-agnostic, and delivers mandates through a small team of senior bankers operating from its London headquarters.

Product overview

Dean Street Advisers is an investment banking and financial advisory firm offering M&A advisory and capital raising services. The firm was founded in 2012 and operates as a single-service advisory practice without a portfolio of distinct software products or technology offerings. Services include M&A advisory (buy-side and sell-side transactions) and capital raising (senior debt, mezzanine capital, and equity), delivered through a team of experienced investment bankers.

Differentiator

Problem solved

Functional benefit

Products and services

• M&A Advisory Origination and execution of mergers and acquisitions in the UK market on both buy-side and sell-side, for UK businesses, management teams, and private equity sponsors. The firm draws on deep relationships across private equity firms, management teams, and experienced operators to deliver mandates.
• Capital Raising Advisory Advisory on raising capital across senior debt, mezzanine capital, and equity financing, either as part of an M&A transaction or on a stand-alone basis. Provides clients access to senior lenders, pension and insurance funds, mezzanine providers, and equity investors including family offices, with the aim of creating the most suitable capital structure.

Named customers6 records

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators2 records

Recent moves4 records

Expansion highlights3 records

Direct peers

• Cavendish Corporate Finance: UK boutique investment bank focused on mid-market M&A advisory and capital raising. Highly comparable in size and service scope to Dean Street, serving UK SMEs and mid-market companies with sell-side, buy-side and fundraising mandates.
• Clearwater International: International mid-market corporate finance advisor with strong UK presence. Provides M&A advisory, debt advisory and equity capital raising for mid-market clients — directly comparable to Dean Street's service mix.
• Livingstone Partners: Global mid-market M&A advisor with significant London presence. Specialises in sell-side and buy-side M&A for mid-market companies, structurally overlapping with Dean Street's M&A advisory offering.
• Hampleton Partners: London-based M&A advisory boutique focused on technology, digital media and software sectors. Comparable relationship-driven boutique model serving mid-market clients, though with a sector specialisation that Dean Street lacks.
• Opus Corporate Finance: Boutique UK corporate finance advisor providing M&A and capital raising advice to mid-market companies. Similar size, sector-agnostic approach and relationship-driven model make it a close comparable.
• Numerica Partners: UK mid-market M&A advisory firm advising on sell-side and buy-side transactions. Operates in the same addressable market with overlapping service lines and a similar boutique positioning.
• Drake Star Partners: Global mid-market advisory firm with strong UK presence, advising on technology, media, and other sector M&A transactions. Comparable boutique-led model with overlapping transaction sizes and client profiles.

Broad incumbents

• Houlihan Lokey: Global investment bank with strong UK M&A advisory and capital markets practices. Broader scale and product set than Dean Street, but overlaps directly in UK mid-market M&A and capital raising mandates.
• Rothschild & Co: Major European advisory firm with deep UK mid-market M&A practice. Competes for the same sponsor-led sell-side and buy-side mandates as Dean Street but with significantly broader international reach.
• Alantra: International financial advisory firm with UK-focused investment banking practice advising mid-market companies on M&A and capital raising. Comparable service offering across M&A and debt advisory.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

• Xx.com/deanstadvisers
• LinkedInlinkedin.com/company/dean-street-advisers

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Dean Street