Ably
Ably is a cloud company in London, United Kingdom, founded in 2016. It has raised $78.0M across 4 rounds, most recently a Series C in December 2024.
The realtime platform that just works.
- Headquarters
- London
- Employees
- 51–200
- Founded
- 2016
- Business Model
- B2B
- Website
- ably.com
- Total Funding
- $78.0M
- Last Round
- Series CDec 2024
- Rounds
- 4
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 4 funding rounds and 1 investor for this company. The full record is or through the API.
About
Ably is the definitive realtime experience platform, powering more WebSocket connections than any other pub/sub platform. Trusted by companies like HubSpot, NASCAR, and Webflow, Ably serves over 2 billion devices monthly across 80 countries, delivering 6.5ms global message delivery latency and a 99.999% SLA with six years of 100% uptime. Founded in 2015 by Matthew O'Riordan and Dr. Paddy Byers, Ably provides composable realtime infrastructure through simple APIs and SDKs covering 22+ languages and platforms. Its product suite spans Pub/Sub messaging, Ably Chat, LiveSync (database-to-frontend sync), Spaces (collaborative presence), and an AI Transport layer for agentic AI workloads — all backed by 700+ points of presence and 11 globally distributed regions. Ably has raised $78 million to date including a $70M Series B led by Insight Partners and Dawn Capital.
Summary
It lists 51–200 employees. It has raised $78.0M in total across 4 rounds, most recently a Series C round in Dec 2024. Investors include Alibaba Group.
Tech & App Stack
15 technologies & apps tracked
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Funding History
Dec 2024
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Funding: Series B through Series C. Amounts, valuations, and investors where available.
Investors
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