Helius
Summary
Helius (helius.dev) is a Toronto-founded, Solana-focused developer infrastructure company offering RPC nodes, enhanced APIs, webhooks, data streaming, and validator services. Founded in June 2022 by former Coinbase and AWS engineers, the company has raised $34.85 million across three rounds led by Founders Fund, Haun Ventures, and Foundation Capital, and operates as a key infrastructure layer for the Solana ecosystem. No regulatory actions or security breaches have been identified against Helius; the main risk signals are minor service reliability incidents and unresolved workplace conduct allegations against its CEO.
Connected Entities
1 entities · 10 linked investigations- + 1 more
Timeline(11 events)
2022-06-01
Helius founded by Mert Mumtaz, Liam Vovk, and Nicolas Pennie after Mumtaz left Coinbase.
IQ.wiki / Decrypt2022-10-19
Helius closes $3.1 million seed round co-led by Reciprocal Ventures and Chapter One.
Decrypt2024-02-21
Helius closes $9.5 million Series A led by Foundation Capital, bringing total raised to ~$12.6M.
BusinessWire2024-07-01
Helius becomes Solana's leading validator by total stake within two months of launch.
Helius Blog2024-09-18
Helius closes $21.75 million Series B co-led by Haun Ventures and Founders Fund, bringing total raised to $34.85M.
Unchained Crypto2025-01-30
Former engineer Miles Smith publishes allegations against CEO Mert Mumtaz on X, including claims of workplace toxicity, IP misappropriation, and technical misrepresentation. Mumtaz publicly denies all allegations.
Crypto.news2025-06-18
Helius launches LaserStream, a gRPC-based real-time data streaming product for Solana developers.
Helius Blog2025-09-15
Unrelated company Helius Medical Technologies (NASDAQ: HSDT) raises $500M to create a Solana treasury, causing widespread name confusion with helius.dev.
CoinDesk2025-10-28
Bitwise Solana Staking ETF (NYSE: BSOL) begins trading, exclusively powered by Helius validators.
Bitwise Investments2026-04-25
Frankfurt node timeout incident on Gatekeeper Beta endpoint lasting approximately 26 minutes; auto-rerouted to Amsterdam.
IsDownDecision Log
- hash: H2kvmL1UNJESWotSp4TireaA4wTJJFLi62YdxUypyCCW
- hash: DeKq3Y43qHPSGNYohs9f4xEYxMhhqP5DvstyU4yvaGij
- hash: BLbqK8jShCshm1q9DM8Fqhe9bWSw1Wjggh92MtnAsZjv
This investigation is cryptographically anchored to the Solana blockchain and source URLs are archived via the Internet Archive.
model: claude-sonnet-4-6
generated: 6/1/2026, 1:01:12 PM
last updated: 6/1/2026, 5:45:17 PM
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