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Investors / United Kingdom / The SidebySide Partnership

The SidebySide Partnership

Venture capital · London, United Kingdom · Europe

thesidebysidepartnership.com

The SidebySide Partnership is a UK technology investor that backs fast-growing Consumer Tech and B2B Software companies with £1-20m in revenue. It takes a concentrated approach, investing in a select few companies at a time and providing hands-on advice alongside capital and follow-on funding.

Invests inFintech

In its own wordsconsumer techb2b softwarescale-upsmarketplacespaymentsuk technology

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13portfolio companies
0funding rounds on record
Growthstages it states

The SidebySide Partnership lists 13 checked portfolio companies on its own site. Its largest themes are Fintech (18%), Consumer (14%) and AI & Machine Learning (14%). 63% of its companies are based in United Kingdom. It invests most often alongside Y Combinator, Amino Capital and Antler.

No funding round on record names The SidebySide Partnership yet, so the figures come from its portfolio page.

Round figures show recent activity, not The SidebySide Partnership's whole history. Rounds on record name 0 companies; its own site lists 13. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.

Investment themes

share of its checked companies

This firmAll checked companies

Show as a table
Investment themes
This firmAll checked companies
Fintech18%12%
Consumer14%3%
AI & Machine Learning14%18%
Industrial & Manufacturing9%7%
Education9%7%
E-commerce & Marketplaces9%6%
Real Estate & Construction5%3%
Legal & Compliance5%2%

Invests most often with

firms sharing its portfolio companies
Show as a table
Co-investors
Share
Y Combinator2
Amino Capital1
Antler1
Azure Capital Partners1
British Business Bank1
Cornerstone VC1
DG Daiwa Ventures1
Emergence Capital1

All co-investors

Investor profile

percentile among all firms
Portfolio size: 12 companiesRecent activity: 0 rounds in 12 monthsEarly stage: 0% of entries at pre-seed or seedEvidence: 0% of companies confirmed by a roundSector focus: 18% in its largest sectorReach: 2 countriesPortfolio size30th pctRecent activity46th pctEarly stage54th pctEvidence52th pctSector focus10th pctReach42th pct
This firmMedian of all firms
Show as a table
The SidebySide Partnership compared with all firms
MeasurePercentile of all firmsValue
Portfolio size30th12 companies
Recent activity46th0 rounds in 12 months
Early stage54th0% of entries at pre-seed or seed
Evidence52th0% of companies confirmed by a round
Sector focus10th18% in its largest sector
Reach42th2 countries

Its portfolio companies

where they are based, and what their own sites show

Headquarters

Site status

  • Site answers13100%
  • No longer answers00%
  • Points to another company00%
  • Parked or sold domain00%

A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.

Co-investor network

who it backs companies with, and who they back together
28 shared companies23 shared companies17 shared companies12 shared companies10 shared companies9 shared companies6 shared companies6 shared companies4 shared companies3 shared companies3 shared companies2 shared companies2 shared companies2 shared companies2 shared companies2 shared companies2 shared companiesY Combinator: 2 shared companiesY Combinator2Amino Capital: 1 shared companiesAmino Capital1Antler: 1 shared companiesAntler1Azure Capital Partners: 1 shared companiesAzure Capital Partners1British Business Bank: 1 shared companiesBritish Business Bank1Cornerstone VC: 1 shared companiesCornerstone VC1DG Daiwa Ventures: 1 shared companiesDG Daiwa Ventures1Emergence Capital: 1 shared companiesEmergence Capital1Fellows Fund: 1 shared companiesFellows Fund1Frontline: 1 shared companiesFrontline1Gresham House Ventures: 1 shared companiesGresham House Ventures1Haatch: 1 shared companiesHaatch1
Shared portfolio companies with The SidebySide PartnershipFirms that also back companies together

All co-investors or Compare portfolios with Y Combinator

Compare The SidebySide Partnership head to head

portfolio size, rounds, entry stages, themes and the companies both back

Three or more firms at once: portfolio overlap.

Portfolio

13 companies checked against their own sites
CompanyWhat it doesThemesFirst round with itEvidence
Envestorsenvestors.co.uk · United KingdomEnvestors is a UK-based organisation that supports founders and startups with investment and innovation
FintechIndustrial & Manufacturing
Portfolio page
Harperharperinsure.com · United StatesHarper provides business insurance services, including various types of liability insurance and other coverage options, to different industries
FintechIndustrial & Manufacturing
Portfolio page
helloBillhellobill.com · United KingdomThe company created a personal AI agent specialising in household bills
AI & Machine LearningFintech
Portfolio page
Honest Mobilehonestmobile.com · United KingdomHonest Mobile provides mobile phone services, including SIMs and eSIMs, with features like unlimited calls and texts, and free global roaming.
ConsumerEnterprise Software
Portfolio page
Laundryheaplaundryheap.com · United KingdomThe company provides laundry and dry cleaning services.
Consumer
Portfolio page
Nativenative.io · United StatesNative provides precision intelligence and agentic AI to drive growth in traditional trade markets
AI & Machine LearningE-commerce & Marketplaces
Portfolio page
Onedayoneday.ioOneday provides a learning environment where users can launch their business ideas and earn an MBA with the guidance of renowned mentors
EducationEducation
Portfolio page
Ryftryftpay.com · United KingdomRyft provides embedded payment solutions for marketplaces and platforms
Fintech
Portfolio page
ShotScopeshotscope.com · United StatesThe company produces and sells golf watches, rangefinders, and shot tracking technology.
ConsumerGaming
Portfolio page
Slipslipreceipts.comSlip is a digital receipts platform that helps brands drive engagement, boost loyalty, and increase revenue through personalised, data-powered experiences.
E-commerce & MarketplacesFintech
Portfolio page
The Codethe-code.coThe Code Company designs and scales intelligent systems
AI & Machine LearningCybersecurity
Portfolio page
Tonic Healthtonicforhealth.comTonic Health provides a real-time mobile patient intake and contactless check-in platform for patients to fill out surveys, sign consent forms, or make payments
Healthcare & Biotech
Portfolio page
TravelNesttravelnest.com · United KingdomTravelNest lists properties on multiple booking platforms and manages bookings and payments in one place.
Real Estate & ConstructionLegal & Compliance
Portfolio page

About this data

site last read 5 Nov 2026
The homepage of The SidebySide Partnership, as last read
thesidebysidepartnership.com as VCinfo last read it
Site
thesidebysidepartnership.com
Last read
5 Nov 2026
Watching since
5 Nov 2026
Companies checked
13

Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.

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