StreamingFast

StreamingFast is one of The Graph's designated core developers, alongside Edge & Node and Figment. The firm is responsible for building and maintaining Firehose and Substreams — the data-extraction and parallelized-processing layers that power the protocol's decentralized indexing network. Under a multi-year service agreement announced in March 2022, StreamingFast receives token grants from The Graph Foundation linked to defined technical milestones (per the firm's official communications, March 2022).

Firehose is StreamingFast's proprietary extraction layer that transforms real-time blockchain data into a flat, deterministic byte stream. Unlike standard RPC endpoints that deliver individual block responses, Firehose produces a continuous, replayable stream that enables parallelized processing. This architecture reduces indexing latency from hours to seconds for high-throughput chains like Solana, and is the technical foundation for Substreams — the next-generation indexing engine deployed across The Graph ecosystem.

StreamingFast operates as a privately held, for-profit entity headquartered in Montreal, Canada. While the firm receives grant-based compensation from The Graph Foundation for its core-developer role, it also operates a separate commercial arm that sells Firehose endpoints and data-engineering services directly to enterprise clients including exchanges and analytics firms. This dual posture — core-dev responsibilities paired with independent commercial contracts — distinguishes its operating model from foundation-only development shops.

StreamingFast supports Ethereum, Solana, Arbitrum, Polygon, BNB Chain, NEAR, and Cosmos-based chains through its Firehose infrastructure. The firm has historically focused on high-throughput environments where traditional node-indexing methods fail, prioritizing chains that generate data volumes exceeding what conventional PostgreSQL-based indexers can process in real time (per the firm's public documentation).

StreamingFast's direct competitors include Alchemy, QuickNode, and SubQuery — all of which offer various forms of blockchain data indexing and API infrastructure. However, StreamingFast's Firehose architecture, built around byte-stream extraction rather than database-coupled indexing, represents a fundamentally different technical approach. In the decentralized-indexing category, the firm's Substreams framework competes with Subsquid's indexing toolkit, though the two are designed for different protocol architectures (The Graph vs. a standalone indexing network).

StreamingFast has not publicly raised traditional venture capital rounds. Its funding model is primarily tied to The Graph Foundation's ecosystem grants, including the $60 million multi-year service agreement announced in March 2022. The firm's earlier entity, dfuse, had been supported by the EOS ecosystem fund, but the StreamingFast rebrand and Ethereum pivot were accomplished without external VC equity rounds (per public record).

StreamingFast's roughly 30-person team comprises principally systems engineers with deep expertise in low-latency data processing, compiled languages such as Rust and Go, and stream-processing frameworks. The firm recruits heavily from Montreal's concentration of AI and systems-programming talent, and its two co-founders — Alexandre Bourget and Matthieu Vachon — previously built dfuse, an early high-performance API platform for the EOS blockchain. No formal organizational chart or executive team beyond the co-founders has been publicly disclosed.