TAM, SAM and SOM: a practical guide for early-stage founders
Market sizing is one of the quickest ways to show discipline in your pitch — and one of the easiest places founders slip.
Cold outreach doesn’t work. This is the smarter way to reach early-stage investors that are the right fit for you.

At ThatRound, we're on a mission to bring the whole early-stage fundraising market into one place for founders.
A curated platform of 300+ angel networks, syndicates and early stage VC funds.
Find the investors that fit your sector, stage and the key details that matter.
Get in front of investor matches and save 100s of hours on research, outreach and applications.
Because fundraising is messy and time-consuming. We're bringing the UK's early-stage market into one place, helps you focus on investors who fit, and makes it easier to move forward with warm intros, clear comparisons and real feedback.



Thinking about raising? Our guide covers everything you need to have sorted before you get started.

Answers to our most common queries.
Yes, ThatRound features both direct investors such as Angel Syndicates and VCs, as well as partners who can introduce you to investors within their network. Whether you’re finding investors for a startup or looking to expand your reach, ThatRound is your first step to unlocking the entire fundraising market in one central hub.
Currently, ThatRound is designed exclusively for UK startups, with features tailored to GBP and local funding needs. However, some of our funding partners are international, offering opportunities beyond the UK. We’re actively planning to expand ThatRound to other regions soon! If you’re thinking of raising a funding round for your business, sign up for our mailing list using the form below to stay informed about future launches and international availability. We’ll keep you updated as we grow and bring ThatRound to founders worldwide.
It typically takes an hour to fill out and publish your pitch page, but this can vary depending on how prepared your investment pitch is. And if you want to speed this up, our AI pitch page generator can take your pitch deck and reformat it into a pitch page for you. Our matching algorithm uses the information you include in the page so it's best to be as forthcoming as possible so we can match you to the most suitable investors. The good news, is that with ThatRound, you will only need to go through one onboarding and create one pitch page to access multiple investors in one place. Therefore, we recommend taking your time, and completing each section thoroughly to prepare the best pitch possible.
No. ThatRound is specifically built for startups looking to get funding for startup equity through traditional equity investment rounds. That said, many of our funding partners may also offer debt-based solutions, and we recommend getting in touch for our team’s recommendations if you’re interested in exploring debt funding.
ThatRound operates on a modest monthly subscription model, much like a typical enterprise software product. The platform provides far more than just introductions to investors and fundraising services. Our platform supports ongoing relationship management, investment round tracking, and coordination of your funding round through a built-in CRM and investor introduction tracking system. This ensures startups are equipped for sustained success throughout their fundraising journey. For the most accurate and up-to-date pricing, please visit our Pricing page.
One place to find, compare and engage with the right early-stage investors by using intelligent matching and warm introductions.