David Mantle

Stashbee

Stashbee is the simplest, smartest, most sustainable way for anyone to share and fill storage space. Whatever your situation or ambition, we have spaces of all sizes for people at all stages.

CEO & Co-Founder

CCO & Co-Founder

Co-CEO & Co-Founder

ICE List

ICE is a global network of high-growth founders who wish to support and accelerate tech entrepreneurs at every stage of their journey.

Member

Oddbox

Investor

BearingPoint

Manager in the UK Digital Customer Management team at BearingPoint. He has many years of experience in multiple industries, functions and geographies. 

Experience:

- Market Delivery Project Manager responsible for the launch of Connected Car Services (InControl) into BENELUX for Jaguar Land Rover. Responsibilities include but are not limited to; End to End Market Launch Readiness and Project Planning, Dealer Network Training and Readiness, Supplier Training and Readiness, Key Stakeholder Management and Communications, Operations set-up  and product accreditation. 

- Programme Planning Manager for the launch feature set for Connected Car at Jaguar Land Rover. Managed and developed the central project plan and critical path for the whole solution from technical development to market delivery across multiple workstreams launching into 5 markets simultaneously. Lead, Failure Modes analysis, product localization and new market scoping.

- Supported the divestment of BP's assets across 5 African countries worth $500m. Carried out resource planning, managed the development and subsequent monitoring of milestone plans, with 10,000+ line items, across 14 complex cross boarder workstreams.

- Identified customer and product growth opportunities and analysed Group company financials for a financial services company. Establish 5 year growth plans and a coordinated approach to customer targeting and new product development

- Developed market entry business case for a new entity in South Africa including roadmap, regulatory compliance and market analysis.

Worked in:
USA, Russia, South Africa, France, Italy, Spain, Germany, Netherlands, Belgium, Luxembourg, Sweden, 

Experience areas:
Connected Car, M&A, project management, organisational change, business optimisation, strategy, risk management, communications, spanning a number of industries such as automotive, oil & gas, and financial services.

Manager

Private Equity International

Account Manager

Citigroup

Implemented business continuity planning and methodology for sector business lines including Smith Barney, Citi Private Bank and Citi Investment Research. Helped develop business recovery plans and conducted 60% of all quality reviews of business recovery plans &amp; business impact analyses for global business groups. Assisted business units in meeting audit and compliance requirements (both external and internal).

Business Continuity Management Analyst

Cushman & Wakefield

Worked for the commercial and industrial investments department focusing on portfolio investments. Assisted viewings of portfolio properties and developed a database of previous investment sales. Also spent a week in the finance department assisting on property development financing options.

Sumer Intern

I'm super passionate about innovation, technology, and startups. 

I Co-Founded Stashbee which is a Marketplace for Storage & Parking. We have over 75,000 registered users with over 2.4 million sq ft of space on the platform making us the 4th largest storage provider in the UK. 

If you ever want to chat about new ideas or need some help please give me a shout.

🎥 Gabriel Isserlis

Unlocking space for creativity: Founder/CEO of Tutti

My expertise lies at the intersection of creativity and technology, which has inspired 
1. Tutti: "AirBnB for creative spaces" (2018-2025)
2. SuperScout: "Your personal database of locations, supercharged with AI" (2024- )

(Side note: I won't accept connection requests unless you give me a compelling reason, or I've met you in person)

With degrees in film making and software development, as well as a decade of work in music, theatre, and photography, and years building tech startups, I have a unique set of insights. 

These have inspired creative technical solutions to problems I have experienced first hand in the creative industries, one of the fastest growing sectors that is already worth more than $3tr to humanity. 

Follow Tutti & SuperScout to see those ideas become a reality

www.tutti.space - www.superscout.ai

Follow me here to get honest stories, insights, and thoughts about the highs, lows, and in-betweens of building a startup: 

- It's not an easy or quick journey, but it's a bloody rewarding one. 

- You can't do it alone. If you think you can, you're kidding yourself. 

- You don't know what you don't know - you'll always be learning things you never knew you needed to know.

- Everything is about relationships. Start building them early and often. You never know who might be able to help you. 


Lastly, this is me behind the companies and experience: 
I love to: 
- Invent solutions
- Design product (UX - I'm great at functional, not so good at pretty)
- Support other founders (it's a bloody difficult journey)
- Inspire others
- Dream up & build the future!

Founder & CEO

This weekend my family and I went from London, to France, to Belgium, to Holland, to London from Saturday to Monday. 

We took 15 trains in 72 hours. 
On Monday someone asked if that was my 1 yr old son's first train ride - not quite... He's probably been on a few 100 trains at this point... (8 countries, 30+ cities and counting!)

Saturday and Sunday my wife had concerts in Belgium and Holland, so I was on dad duty. Monday I had work & normal meetings. 

This was all after our longest stretch of being home in 2026 - a whole 8 days!!! 

And across a number of future weekends we're doing it all again. (I wonder what relaxing on weekends is like?!) 

We're doing this while I'm actively growing SuperScout - we're on track to make as much revenue in Q1 as we had in all 2025! And 90% of those sales have been driven by me. 

This is all to say: if I don't reply to you, I'm sorry. I've got a bit on at the moment. 
Please don't take it personally!!!


Unrelated but cool: While we were traveling, a script I had managed to co-write with AI helped onboard a major new customer of ours on my computer at home. (Quite proud of this as before a few weeks ago I'd never created my own scripts) 

Anyway - that's a small glimpse into my insane life. If you want to follow along my wife somehow creates a vlog while also balancing rehearsals, concerts, travel, and baby - you can find her on YouTube and TikTok: Amarins Wierdsma

Empowering filmmakers with radically better software (SuperScout); Dad, Founder, Mentor, Cat Dad

As I hope you can tell from my posts on here, I'm extremely proud of what my wife is achieving with her musical career while also being an amazing mum. 

So today, I have to give her a little plug. Her quartet's 2nd CD came out today. 

They recorded this when our little one was just 4 months (and their 2nd violin was 8 months pregnant). 

Recording sessions were often interrupted by a little hungry one needing food, and I was on hand just outside the studio to be a comfy bed, while also doing my best to send out sales emails for SuperScout. 

Many listening sessions between takes were sat in the recording booth with our baby having a good feed, and my wife balancing both mum job (breastfeeding) & musician job (giving critical feedback to their last bit of playing) simultaneously. 

It was a lot! 

But they got it done and the recording sounds amazing!

If you're a fan of classical music, there's a particularly beautiful version of Elgar's Enigma variation, arranged for quartet by their violist. 

If you want to listen, look up Lux Intus, Barbican Quartet. Otherwise I'll post a link below shortly.

Dealing with the emotions of founder life is bloody hard, but I'm now realising it's so much harder as a founder dad. 

Founder life really is an emotional rollercoaster. I heard this from other founders including Nick Telson-Sillett and Dan Murray when I was getting started. 

But I also experienced it early on: 
  📈 From closing big sales to losing big sales hours apart. 

  ™️ To almost getting a trademark but then being blocked by pre-Musk Twitter at the 11th hour (a story for another time). 

  💸 To closing my first big fundraise after months of work, and then the reality hitting me hours later that I had received hard-earned money from friends, family, and supporters around the world and that I needed to put it to good use, and that's when the real work had to start. 


So as a founder, I do my best to keep my emotions as level as possible for my team. Yes I try to celebrate the wins, but I don't go over the top for them because the higher I go the harder I fall. And I don't want my team to experience the rollercoaster that's inside me almost every day. 

But now, as a work at home dad, this is even tougher. My team and I are not on call 24/7. But I am around my son basically 24/7. I work from home most of the time. I travel with my wife and my son, so my wife can work. Since my son was born 13+ months ago, we've never been apart for more than 8 hours. 

The highs in the emotional rollercoaster are fine. He doesn't understand why I'm happy but he's happy that I am. It's the lows that are tough. Sometimes I lose a sale. Or have a particularly tough conversation. And then right after, it's my wife's time to work and my time to go on dad duty. 

I do my best to shield him from my negative emotion. And yet, I often need to process why I'm feeling the low. So I have to project this sense of joyfulness to him while also trying to process the negativity inside, and telling myself I can find time to process later once he's gone to bed (never works...) 

Fortunately my wife is amazing and helps me massively in all this - she's my biggest supporter and every time I have a low she reminds me how much I've achieved! 

But it's still a bloody tough balance, and I imagine only going to get tougher as my son understands more and more! Anyone else experience this? Got any tips? 

(I know this isn't exclusive to founders but I feel like it's amplified with the founder emotion rollercoaster) 

Photo of me dealing with the emotions of 8+ hours of trains in a day last week...

I'm thrilled to be building a company slap bang in the middle of this awesome industry. 

We have so many exciting developments in the works and to hear last year was the biggest year ever (as an industry) makes me so excited for the future.

In case you hadn't heard, the British Film Institute (BFI) revealed a £6.8 billion film and high-end TV production spend in the UK in 2025!

💥 High-end TV accounted for the majority of spend, contributing £4 billion (59%), up 17% on 2024

💥 Feature film production delivered £2.8 billion (41%), up 31% on 2024 - the highest annual spend on record

💥 Inward investment films and HETV combined generated £5.8 billion, representing 85% of total production spend and reinforcing the UK’s global reputation as a world-leading centre for international film and TV production

There continues to be strong international confidence in the UK screen industries, and we're proud to be a part of it alongside our national and regional partners 🤝

📸 Universal

British Film Commission

#filmandtv #ukfilm

taplio

The Battle

David Mantle

🎥 Gabriel Isserlis

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The Battle

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🎥 Gabriel Isserlis

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Performance Score.css-goub6s{font-size:var(--chakra-fontSizes-md);font-weight:500;color:var(--chakra-colors-gray-600);display:block;margin-top:var(--chakra-space-1);}🎥 Gabriel Isserlis's LinkedIn Performance

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