One venture a year. Each more ambitious than the last.

This has been our venture studio's guiding principle for 14 years. In this time, we've built 14 ventures (6 failed, 2 acquired, 3 operational & 3 in incubation).

Founded by Marcus Taylor

Milestone · 2012
Founded as an internet business holding company

Venture Harbour begins as a holding company for Marcus's internet businesses.
Milestone · 2013
First venture takes off

What is My Comfort Zone reaches 30K users and becomes the first scientifically-valid method of measuring comfort zones.
Venture · 2014
BrokerNotes launched

A platform that helps retail traders compare affordable, reputable, regulated brokerages.

Acquired in 2021
Milestone · 2015
Venture Harbour expands at Howbery Park

As our team grows, we move into a manor house in Oxfordshire.
Milestone · 2016
Marketing Automation Insider launched

Built at a team retreat, Marketing Automation Insider helps marketers compare over 100+ ESPs and marketing automation tools.
Milestone · 2017
Leadformly launched to automate form optimisation

Leadformly reaches product-market fit and $250K ARR in year two. We build an external engineering team in Pune, India to scale the product.
Milestone · 2018
Serene automates macOS productivity

Throughout the pandemic we built Serene, a macOS productvity app for remote teams. It hits #1 Product of the Day on ProductHunt.
Milestone · 2019
Venture Harbour wins Deloitte Fast50

Named the 11th fastest-growing tech company in Europe by the Deloitte Technology Fast 500 EMEA rankings.
Venture · 2020
TrueNorth automates growth marketing analytics

Product fails to reach product-market fit and is sunsetted.

Sunset
Milestone · 2021
Stackup launched to automate software comparison
Milestone · 2022
Venture Harbour celebrates 10 years of venture building

The team celebrate an epic decade with some punting, wine, karaoke, good food, and more wine.
Milestone · 2023
Venture Harbour refocuses on agentic automation

After a few failed ventures, Venture Harbour needs a new direction. Marcus begins dabbling with AI agents.
Milestone · 2024
Venture Harbour shifts to agent-led development
Venture · 2025
SubPlot

Community software for creators.

In stealth
Venture · 2026
Voice AI Guide

Latency and price tracker for voice AI models.

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All things, automated

We aim for a common automation stack across our ventures, which is why we deeply research each category before making a decision. Since 2014, we've shared our automation research to help others make better software decisions.