Radar · SaaS in London
Best SaaS Companies in London, United Kingdom
The 47 best SaaS companies in London, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals.
By Rohit KhannaTrends & Stories
47companies tracked
$0disclosed funding
0unicorns
—have raised
FLIAR INTELLIGENCE · SAAS × LONDON
Our analysis of 450 SaaS companies
$16.8b in tracked funding; 89% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2021.
450companies analysed
89%cloud-native stacks
2021funding peak (by rounds)
16unicorns
2016median founding year
Ranked: Best SaaS companies in London
| # | Company | Disclosed funding | Founded | Employees | Tech stack | Web popularity | SEO maturity | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Conversionize Get 25% more booked calls within 30 days. | — | 2022 | — | — | — | — | — |
| 2 | Coplestone Group We help B2B companies grow with LinkedIn | — | 2022 | — | — | — | — | — |
| 3 | Socialyze Find the perfect influencer, analyze audience insights and manage your next influencer campaign using… | — | 2022 | — | — | — | — | — |
| 4 | Ah Um Ah Um | — | 2021 | — | — | — | — | — |
| 5 | cxsports We turn Davids into Goliaths | — | 2021 | — | Cart FunctionalityWordPressMySQL+11 | Top 5M | rich | — |
| 6 | FuturHive We Grow your Business with Scalable Websites and SEO. | — | 2021 | — | — | — | — | — |
| 7 | Academic Consultant Academic Writing Consultant North America | — | 2020 | — | — | — | — | — |
| 8 | remotestar RemoteStar provides end-to-end hiring, recruiting, and staffing services. | — | 2020 | 21 | WebflowMicrosoft AdvertisingLeadfeeder+16 | Top 5M | rich | — |
Funding & investor landscape
$0total disclosed funding
0companies funded
0disclosed rounds
0rounds last 90 days
Prism market signals · United Kingdom · country-scoped Prism corpus, 2,262,386 docs
Market landscape — 10 sub-themes by coverage
Share of SaaS coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
RESEARCH IN LONDON · Networking & Security
How research on Cloud Computing in London is moving
A read on the academic research around Cloud Computing in London — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 246 papers.
246 papers · stance +0.43 · 40% breakthrough · 28% concern
top institutions
- Imperial College London111
- University College London37
- Queen Mary University of London32
- King\'s College London18
- Brunel University of London12
leading researchers
Edward Gryspeerdt · Gryspeerdt, Edward · Sukhpal Singh Gill · Paulo Ceppi · Shiqiang Wang · Tippett, Anna
prism intelligence · tone & topics
92% positive · 4% critical tone
Artificial IntelligenceEnvironmentComputer ScienceSoftware DevelopmentMachine LearningBusiness
▲
Breakthroughs89 · 36%
▲ 20%→39% share
▲1.9× share momentum0 median citations81% since 2021mostly methods-led
Breakthroughs are rising (20%→39% of field), led by Operating system.
rising sub-themes (early→recent)
- Operating system1→9
- Enhanced Data Rates for GSM Evolution1→7
- Server1→4
- Overhead (engineering)1→3
- Workflow1→3
Newly emergingPoint cloud 0→11 · Key (lock) 0→8 · Scalability 0→6
Landmark Software-Defined Networking: A Comprehensive Survey · 4,814 cites
◆
Advancements72 · 29%
▼ 38%→28% share
▼0.7× share momentum0 median citations71% since 2021mostly methods-led
Advancements are cooling (38%→28% of field), led by Operating system.
rising sub-themes (early→recent)
- Operating system1→3
- Enhanced Data Rates for GSM Evolution3→4
Newly emergingAerosol 0→8 · Cloud fraction 0→6 · Cloud condensation nuclei 0→6
Landmark Mobile Edge Computing via a UAV-Mounted Cloudlet: Optimization of Bit Allocation and Path Planning · 801 cites
▼
Concerns62 · 25%
▲ 22%→25% share
▲1.1× share momentum0 median citations74% since 2021mostly empirical
Concerns are rising (22%→25% of field), led by Aerosol.
rising sub-themes (early→recent)
- Aerosol1→12
- Key (lock)1→5
- Computer security2→3
Newly emergingLiquid water path 0→12 · Satellite 0→12 · Replicate 0→9
Landmark Causes of Higher Climate Sensitivity in CMIP6 Models · 1,753 cites
Common questions
How many SaaS companies are there in London, United Kingdom?
Radar tracks 47 indexable SaaS companies headquartered in London, United Kingdom that meet our profile-completeness bar.
What is the total funding raised by SaaS companies in London, United Kingdom?
The SaaS companies in London, United Kingdom on this list have raised a combined $0 in disclosed equity funding across 0 funded companies.
Which is the highest-funded SaaS company in London, United Kingdom?
Funding figures are not yet disclosed for SaaS companies in London, United Kingdom.
How many SaaS companies in London, United Kingdom are funded?
0 of the 47 SaaS companies in London, United Kingdom on this list have disclosed at least one equity funding round.
How many SaaS unicorns are there in London, United Kingdom?
None of the SaaS companies in London, United Kingdom on this list currently has a disclosed valuation of $1B or more.
Who are the top investors in London, United Kingdom SaaS companies?
The most active investors in London, United Kingdom SaaS companies on this list include a range of venture and angel investors.
Rohit KhannaTrends & Stories
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.