What stage does The SidebySide Partnership invest at?

The SidebySide Partnership invests at the Seed, Series A, Growth, Late Stage stages.

What sectors does The SidebySide Partnership focus on?

The SidebySide Partnership focuses on Consumer, Enterprise Software, SaaS.

Where is The SidebySide Partnership located?

The SidebySide Partnership is headquartered in London, GB.

The SidebySide Partnership

Venture capital

London · Seed–Late Stage · 7 people tracked

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Investment thesis

The firm concentrates on a select few companies at any one time so each receives the capital and guidance needed to reach its potential. Rather than simply financing startups, it offers hands-on advice from experienced people who have built companies themselves. Its stated aim is to fill a historic gap in the UK market by combining funding with operational expertise to support the creation of the next generation of leading UK technology companies.

Invests inConsumer Enterprise Software SaaSLondonUnited Kingdom

Source: firm website, verified Aug 3, 2026.

Stage

Seed–Late Stage

London, GB

Instruments

Equity

Tracked investments

Team · 7 people

from the firm's website

Ben Ashworth· Partner

Managing Partner of The SideBySide Partnership International, having led over 50 investments across consumer technology and B2B software. He leads due diligence, structures and executes deals, and sits on portfolio company boards.

John Bailye· Founder

Founding Partner of The SideBySide Partnership International and a healthcare IT specialist who founded Dendrite (Nasdaq: DRTE), which grew to $420m in revenue before a $780m+ sale. He later led EKR Therapeutics and is an active angel investor with exits including Instamed and Systech.

Andrew Irwin· Investment Director

Investment Director with 20 years of experience in EIS funds and early-stage companies. He has helped raise over £300m in tax-efficient investments and founded MICAP, a leading EIS research provider.

Beth Collins· Fund Manager (SidebySide EIS Venture Fund)

Fund Manager assisting in the setup and management of the SidebySide EIS Venture Fund. She holds a first-class honours degree in Business Economics from Ulster University and has completed the EISA diploma.

Boyd Carson· AIF Manager (SidebySide EIS Venture Fund)

AIF Manager for the SidebySide EIS Venture Fund with over 30 years of experience in accounting and corporate finance, including a directorship in PwC's Transaction Services group in New York. He is a Chartered Accountant, Harvard alumnus and faculty member, and Honorary Professor of Practice in Venture Capital at Queen's University Belfast.

Matthew Arwynck· Head of Private Clients

Head of Private Clients with over 20 years of experience as a lead broker at one of the UK's first private equity firms. He leads the firm's investor relations team and communicates investment activity and portfolio updates to clients.

Sheli Gupta· Portfolio Company Mentor

A seasoned entrepreneur with 30 years of international experience who has founded numerous startups and holds board roles, including CEO of Hu-manity.co. He founded Software Associates International and led M&A activity for Dendrite, and works with portfolio companies on business plans and strategy.

What they invest in

from 3 of 13 portfolio companies

Marketplaces ×2Consumer ×1EdTech ×1Future of Work ×1PropTech ×1SaaS ×1Travel & Hospitality ×1

HQs:United Kingdom×2

Investments · 13 tracked

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Envestors

Harper

Honest Mobilehonestmobile.comin 𝕏

Laundryheaplaundryheap.co.ukin

Laundry Heap offers on-demand laundry and dry cleaning services with pickup and delivery in the United Kingdom.

ConsumerMarketplacesUnited Kingdom, GB

Love the Sales

Native

Onedayoneday.orgin

Oneday is an accredited entrepreneurial MBA program that provides one-to-one mentoring from experienced entrepreneurs and structured guidance to launch startups.

EdTechFuture of Work

Ryft

ShotScope

Slip

The Bunch

Tonic Health

Travelnesttravelnest.comin 𝕏

Travelnest is a UK-founded platform that provides holiday rental management software for independent property owners, enabling multi-channel listing distribution, automated pricing optimization, and calendar synchronization across 30+ booking platforms from a single dashboard.

MarketplacesPropTechSaaSTravel & HospitalityLondon, GB

Frequently asked questions

What stage does The SidebySide Partnership invest at?: The SidebySide Partnership invests at the Seed, Series A, Growth, Late Stage stages.
What sectors does The SidebySide Partnership focus on?: The SidebySide Partnership focuses on Consumer, Enterprise Software, SaaS.
Where is The SidebySide Partnership located?: The SidebySide Partnership is headquartered in London, GB.

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