About us

We are a hands-on growth and sales transformation partner for small and mid-cap private equity and venture capital backed businesses.

With over 35 years’ of experience, we have assisted multiple businesses to achieve profitable, sustainable growth through commercial and sales transformations.

We are business builders

“Our mission is to design, transform and implement winning operating models to achieve profitable and sustainable growth.”

How we can help your business

As interim executives and top management consultants, we embed ourselves in your business to drive execution and deliver results that enhance shareholder value.

Our approach revolves around executing transformative initiatives for value creation and sales growth, tailored for businesses pursuing significant expansion, addressing underperformance, or navigating distress.

We prioritise long-term value creation over short-term tactics, working to build sustainable revenue and business growth for all stakeholders.

Helping you reduce time to growth

Fortius Partners is the result of a joint venture between Citius and Altius Partners, embodying the Latin terms ‘Citius,’ meaning ‘faster,’ and ‘Altius,’ meaning ‘higher.’

Together, ‘Fortius’ signifies ‘strength,’ forging a formidable alliance to drive swift, sustainable growth.

Our expertise remains deeply rooted in hands-on experience, offering pragmatic and proven methodologies to accelerate your growth transformation.

Leveraging our extensive partner network, we extend our services beyond commercial, sales and operational transformation, encompassing vital aspects such as technology, finance and ESG.

Whatever growth challenges you face, we’ve been there — including times of uncertain economic conditions.

Our case studies and references speak for themselves.


Mitul Ruparelia, Managing Partner

Mitul Ruparelia

Managing Partner – Interim Executive

Simon Andreas Hofmann, Managing Partner

Simon Andreas Hofmann

Managing Partner – Consulting Practice

Advisory board

Dr. Wolfgang Faisst, Fortius Partners - Advisory Board

Dr Wolfgang Faisst

Ex-Bain & Company, CEO of ValueWorks

Dr. Sebastian Walther, Fortius Partners - Advisory Board

Dr Sebastian Walther

Ex-McKinsey, CFO & COO of ValueWorks

How our customers describe our transformative impact

“Part of the leadership team, playing an instrumental role during the turnaround of BlackBerry… Delivering strong performance with double-digit year-on-year growth and the channel business was a vital part of the EMEA success… Both strategic and operational capability which is a rare combination.”

Carl Wiese, Chief Revenue Officer, Poly

“Successfully drove or had key contributions to several projects. For example, in the telecom and healthcare industries, mobility and our engagement model with our largest customers. Dependability and capacity for multi-threading were extremely valuable in this demanding, project-oriented role.”

David Bergonzo, Vice President, Market Transformation, SAP

“Played a pivotal role in driving our early-stage success. In 10 months, skilfully combined strategic insights with hands-on contributions in sales, marketing, product and strategy. This led to securing pre-seed investment, forming crucial partnerships, and steering us towards a planned Series A funding round in 2024.”

Vincent Cook, Chief Executive Officer & Founder, Cy3br Operations

“Helped us develop a GTM strategy & execution approach for a new product introduction in our portfolio firms and went above and beyond. Very customer oriented, focused on delivery & implementation rather than only smart ideas. Great understanding of the PE dynamics as well.”

Koen Verschuren, AI Founder & Director, EGERIA Private Equity

“Hard work, level of customer and partner intimacy, ability to manage people, and solve complex issues smoothly, are extraordinary… fun to work with, which is a plus.”

Florian Bienvenu, Chief Revenue Officer, Vision-Box

“Key advisor to my business… vested leader and leads by example…incredible work ethic and understands how best to align the channel perfectly to drive incremental business…Help create and drive some of the largest deals we did in the UK and I can unequivocally advocate for.”

Mihir Andrei Mukherjee, Chief Executive Officer, Unipac

“Ability to find the core success levers quickly and focus on effective execution. This helps business leaders prioritize the things that move the needle and create impact. Highly recommend working with on value-creation activities. You’ll learn a lot and have fun doing so.”

Alec Vardanian, Senior Manager, SparkOptimus

“Am constantly impressed by dedication and tenacity. Balances the needs ensuring that the spirit of partnership is felt on both sides. Inspirational business leader, with a track record of success.”

Alan Giles, Group Chief Commercial Officer, VoxSmart

“Always a pleasure working with. Very effective way of working, mobilizing our team to achieve the most possible with a very pragmatic and hands-on approach.”

Roel Van Den Heuvel, Chief Commercial Officer, Euramax

“Technical command and diligence in meeting customer expectations were fundamental to the successful development of the largest global messaging provider of recent years.”

Robert Rose, Chief Strategy Officer, Global Message Services

Kita Concept
Virgin Media
Mobile 365
Sybase 365
Quoratio Groep
To Increase
Cyb3r Operations
CTD Architectural Tiles
Castolin Eutectic
Reckitt Benckiser
Bau King
Hive Streaming
BVA Auctions

What next? Learn more about our services or contact us