Investors / United Kingdom / Frontline
Frontline
Venture capital · London, United Kingdom · Europe
Frontline is an investor that backs B2B technology companies in the US and Europe, helping them expand across the Atlantic. It invests through two funds: Frontline Growth for US companies expanding into Europe and Frontline Seed for early-stage European startups entering the US market.
Invests inAI & Machine LearningFintech
In its own wordsb2btransatlanticgo-to-marketexpansionsoftware
Your fit with Frontline
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsFrontline lists 106 checked portfolio companies on its own site and is named in 19 funding rounds, 9 of them as lead. Its most frequent entry is Seed, 50% of the companies with a known first round. Its largest themes are AI & Machine Learning (24%), Fintech (15%) and Enterprise Software (11%). 50% of its companies are based in United States. It invests most often alongside Y Combinator, Sequoia Capital and Accel.
Counts come from funding rounds that name Frontline, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Round figures show recent activity, not Frontline's whole history. Rounds on record name 18 companies; its own site lists 106. 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.
Entry stage
share of companies by the stage of its first roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 50% |
| Series A | 17% |
| Series B | 22% |
| Growth | 11% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 1 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 1 | 0 |
| '25 | 8 | 5 |
| '26 | 9 | 4 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 96th | 106 companies |
| Recent activity | 95th | 10 rounds in 12 months |
| Early stage | 73th | 50% of entries at pre-seed or seed |
| Evidence | 84th | 14% of companies confirmed by a round |
| Sector focus | 29th | 24% in its largest sector |
| Reach | 97th | 12 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 24% | 18% |
| Fintech | 15% | 12% |
| Enterprise Software | 11% | 8% |
| Cybersecurity | 9% | 4% |
| Healthcare & Biotech | 8% | 15% |
| Media & Entertainment | 4% | 4% |
| Human Resources | 4% | 1% |
| E-commerce & Marketplaces | 3% | 6% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Y Combinator | 12 |
| Sequoia Capital | 6 |
| Accel | 4 |
| DCVC | 4 |
| Operator Partners | 4 |
| Salesforce Ventures | 4 |
| AV8 Ventures | 3 |
| Abstract | 3 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers10094%
- No longer answers00%
- Points to another company66%
- 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 togetherCompare Frontline head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with Frontline| Date | Company | Stage |
|---|---|---|
| 22 Sept 2026 | Series C+ | |
| 9 Sept 2026 | Seed Led | |
| 17 Jun 2026 | Series A | |
| 22 Apr 2026 | Seed Led | |
| 21 Apr 2026 | Seed | |
| 4 Mar 2026 | Series B | |
| 17 Feb 2026 | Seed Led | |
| 12 Feb 2026 | Seed Led |
Round details for Frontline
Amounts, full round histories and every co-investor in Frontline's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
106 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| AirOps works with clients to set and execute the right AI discovery strategy to earn an agent's trust and drive growth for their brand. | AI & Machine LearningMedia & Entertainment | Nov 2025Series B | Page + round | |
| Antithesis provides a platform for autonomous verification and testing of software systems to help developers release bug-free systems quickly. | CybersecurityAI & Machine Learning | Portfolio page | ||
| Appital provides electronic liquidity services to the buy-side | Fintech | Portfolio page | ||
| AQMetrics provides regulatory compliance software for asset managers | Fintech | Portfolio page | ||
| Archive partners with brands to build and scale innovative, profitable resale businesses. | E-commerce & MarketplacesSpace & Defense | Portfolio page | ||
| Arctal provides institutional-grade financial data built, delivered, and managed by AI agents. | FintechAI & Machine Learning | Portfolio page | ||
| Donna provides an AI assistant for field sales teams to help with tasks such as note taking, reporting, and coaching | AI & Machine LearningEnterprise Software | Dec 2025Seed | Page + round | |
| Astronomer provides a platform to run Apache Airflow for data and AI orchestration | AI & Machine LearningCybersecurity | Portfolio page | ||
| Attentive provides an AI-powered SMS and email marketing platform for businesses | E-commerce & MarketplacesMedia & Entertainment | Portfolio page | ||
| Avallon Ai creates AI agents for insurance claims | AI & Machine LearningFintech | Nov 2025Seed | Page + round | |
| Axiom does mathematical research and publishes papers and formalizations. | EducationRobotics & Hardware | Portfolio page | ||
| Baserow is a no-code open source database and application builder | EducationReal Estate & Construction | Portfolio page | ||
| Blockthrough helps publishers generate incremental revenue by delivering nonintrusive ads to users who are open to seeing fewer ads. | Media & EntertainmentHealthcare & Biotech | Portfolio page | ||
| Blokur provides music licensing and reporting services for music publishers and apps | Enterprise SoftwareMedia & Entertainment | Portfolio page | ||
| Brightflag provides a platform for legal spend management, e-billing, and matter management. | Legal & ComplianceFintech | Portfolio page | ||
CybersecurityAI & Machine Learning | Portfolio page | |||
| Cellbyte provides AI-powered tools and services for pharmaceutical pricing and market access research | Healthcare & BiotechAI & Machine Learning | Nov 2025Seed | Page + round | |
| Clay provides a platform to build systems for growing revenue by centralizing data sources and tracking signals and intent. | Enterprise SoftwareAI & Machine Learning | Portfolio page | ||
| Cloudsmith provides a login service for its users. | CybersecuritySpace & Defense | Portfolio page | ||
| Collectiv Food is a food distributor that provides various food products and services to restaurant groups | Food & Agriculture | Portfolio page |
About this data
site last read 12 Nov 2026- Site
- frontline.vc
- Last read
- 12 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 1 Nov 2021
- Companies checked
- 106
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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