Performance, Capital and Long-Term Value Creation
Gi-3 Leadership Team
Gi-3 Marketing is led by the directors of GI-3 Growth Partners, seasoned corporate executives and entrepreneurs with decades of experience scaling and transforming businesses across the UK’s manufacturing, industrial and engineering sectors. With expertise spanning general management, commercial strategy, sales and marketing, technology, engineering and finance, they bring true board-level insight into how businesses grow, compete and create value.
Having delivered revenue growth, profitability improvement and operational performance and invested £1m–£20m in high-potential companies, they understand what markets demand and what sustainable growth requires. Gi-3 Marketing is not simply an agency; it is backed by leadership that understands performance, capital and long-term value creation.
Gi-3 HOLDINGS GROUP STRUCTURE
Chris Shelley
Managing Partner & CEO
Christopher Shelley is a seasoned executive and Managing Partner at Gi-3 Growth Partners, specialising in industrial turnaround, succession planning, and scaling UK engineering SMEs. Based in Bristol, England, he brings over 40 years of corporate leadership to drive revenue growth and profitability in manufacturing and engineering sectors, with a key role as Executive Chair and Non-Executive Director of several SME companies in the manufacturing, engineering and tech sectors. Professional Expertise Chris served as Regional President APAC of an Invensys PLC division generating over growing from USD120m to over $200 million in revenue over 4 years with full P&L responsibility across 12 companies and joint ventures, complemented by deep experience in automotive, food process engineering, power generation, and heavy building materials. He holds expertise in business consulting focusing on start-up investment readiness, turnarounds, and capital raising from VC, private equity, and HNW investors. His approach emphasises precise implementation, from advanced engineering and manufacturing technologies to scalable production engineering. Key Roles and Companies As Managing Partner at Gi-3 since 2023, Chris leads projects and investments alongside partners Henning von Spreckelsen and Simon Duncan, targeting UK manufacturing and engineering SMEs. He serves as Non-Executive Director of Rubery Owen Holdings (family-owned industrial and retail group), Executive Chair of DYMAG Technologies (premium carbon composite and forged aluminium wheels for motorcycle and automotive OEM markets), and holds majority ownership of Fimark Ltd through Gi-3 Holdings Ltd. He also spent seven years as an industrial adviser and portfolio NED with EQT Far East Private Equity, with manufacturing operations across China, Taiwan, and the UK. Earlier corporate roles span Fortune 500 and FTSE 100 groups including ABB Power Generation Ltd (Switzerland), Invensys PLC, Blue Circle Industries PLC, and Perkins Large Diesel Engines (now Caterpillar). Impact and Recognition Chris excels in transforming underperforming businesses — most notably turning around Invensys APV's loss-making Asia Pacific division into its most profitable global unit. At DYMAG, he rebuilt the business following acquisition from administration, re-establishing OEM and aftermarket revenues. A Sainsbury Management Fellow and INSEAD MBA, he has mentored engineering talent through Royal Academy of Engineering programmes and served as President of the Sainsbury Management Fellows Society. His hands-on leadership ensures sustainable value creation for retiring SME owners transitioning their legacies.
Henning von Spreckelsen
Managing Partner & CEO
FREng is a distinguished engineer, entrepreneur, and investor based in the UK, serving as a Partner at Gi-3 Growth Partners. With extensive experience in manufacturing, plastics, and engineering sectors, he drives profitability and innovation across multiple ventures. Professional Expertise Henning holds an MEng and MBA, and is a Chartered Engineer (CEng MIET) and Fellow of the Royal Academy of Engineering (FREng). His career spans senior roles at Tetra Pak UK and founding Bapco Closures, where he raised over £10 million, secured 130+ patents, and launched products with major brands like Pepsi and M&S. He applies world-class manufacturing to chemicals, automation, packaging, and sustainability-focused industries. Key Roles and Companies At Gi-3 Growth Partners, Henning collaborates with Christopher Shelley and Simon Duncan—fellow Sainsbury Management Fellows—to invest in UK manufacturing and engineering SMEs, recently taking stakes in Fimark Ltd as Chief Technology Officer. He is Director at Plastecowood Ltd (recycled plastic profiles), involved with Dymag Technologies (automotive components), and has advised firms in activities ranging from MRI manufacturing, marine lighting, packaging , FX algorithms, and child protection tech. Impact and Recognition Henning’s technical input transformed Plastecowood into a carbon-negative leader, recycling waste plastics to replace wood, steel, and concrete while saving trees and reducing landfill. His non-executive and investment roles emphasize engineering excellence, with 10% of Gi-3 profits donated to engineering scholarships. He sits on the Board of the Engineers and Scientists in Business Fellowship charity. Residing in England, he mentors the next generation of engineers and entrepreneurs.
Simon Duncan
Managing Partner & CEO
Simon Duncan is a seasoned finance executive, entrepreneur, and Partner/CFO at Gi-3 Growth Partners, based in Bristol, England. He specializes in structured finance and funding UK manufacturing and engineering businesses, leveraging 30+ years of deal-making experience. Professional Expertise Simon is a Sainsbury Management Fellow with an engineering background and MBA, renowned as a "billion-dollar dealmaker" for structuring complex financings. From 1998-2011, he held senior roles at GE Capital Europe, followed by raising £340 million in debt and £140 million in equity for A Shade Greener's solar panel installation business. His expertise spans renewables, diagnostics, and plastics recycling. Key Roles and Companies As Partner and CFO at Gi-3 since December 2023, Simon directs financial strategy for SME investments, alongside Christopher Shelley and Henning von Spreckelsen. He serves as Non Executive Director of Plastecowood (waste plastic to lumber), CEO of Faster Diagnostics Ltd (early cancer screening), and Director of Gi-3 entities like GI-3 Holdings and GI-3 Marketing Services. Past roles include leading solar financing ventures. Impact and Recognition Simon has enabled £480 million+ in financing for innovative projects, from solar energy to carbon-negative manufacturing, while volunteering on COVID frontlines with St John Ambulance. At Gi-3, he supports 10% profit donation to engineering scholarships, mentoring future leaders. His engineering-finance blend drives sustainable growth for retiring SME owners.
.png)
Belinda Pinto
Creative Director
Belinda Pinto is an experienced brand and digital strategist with over two decades of expertise helping organisations strengthen their market presence and unlock new growth opportunities. Working across international markets and multiple industries, she specialises in building credible brands, sophisticated digital platforms and integrated marketing ecosystems that support long-term business performance. Her work combines strategic thinking, creative leadership and technical execution, ensuring that brand, design and digital strategy align with commercial objectives. Through a clear understanding of market positioning, audience behaviour and digital architecture, Belinda develops platforms and campaigns that elevate brands and drive measurable impact. Web design | Graphic Design | Creative Strategy | Social Media | Content Creation
Gi-3 Marketing
We design and build high-performing digital ecosystems for ambitious organisations navigating growth and transformation. From strategic brand positioning to sophisticated website architecture and results-driven marketing, we combine creativity with commercial insight to deliver measurable impact.
Whether scaling enterprises or emerging brands, clients trust us to execute with precision, clarity and momentum.
LET'S GET YOU ON THE MAP
Global Footprint
Clients from around the world who have trusted us with their vision.
