Alljoined

Alljoined

Decoding neural signals for brain-computer interfaces

Overview

Alljoined builds and provides a complete Brain-Computer Interface (BCI) stack that decodes neural signals into meaningful representations like images, text, sound, and video using deep learning. Its products operate by collecting neural data through a BCI, processing and decoding it with in-house models, and producing user-ready outputs across multiple modalities. The company differentiates itself by offering an affordable, high-quality interface and an end-to-end stack, backed by researchers from top institutions, and by licensing the technology to device manufacturers and application developers while pursuing clinical partnerships. Its goal is to democratize neural decoding and enable interaction with devices at the speed of thought for healthcare diagnostics, creative industries, and other human–technology applications.

About Alljoined

Simplify's Rating
Why Alljoined is rated
C-
Rated C on Competitive Edge
Rated C on Growth Potential
Rated D+ on Differentiation

Industries

Data & Analytics

AI & Machine Learning

Healthcare

Company Size

11-50

Company Stage

N/A

Total Funding

N/A

Headquarters

San Francisco, California

Founded

2023

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Simplify's Take

What believers are saying

  • On 2026-05-25, Alljoined released Alljoined-1.6M, a 1.6-million-trial EEG-image dataset.
  • The 2026-05-25 NOVA dataset strengthens emotion decoding and broadens training data.
  • A 2026-03-15 Khosla Ventures job post shows active hiring and continued investor support.

What critics are saying

  • Alljoined has 2-10 employees, making execution risk extreme if key hires leave.
  • The company sells thought-decoding claims before clinical validation, inviting reputational and regulatory backlash.
  • If EEG decoding stalls, Khosla-backed expectations collapse and Alljoined becomes a research-demo dead end.

What makes Alljoined unique

  • Alljoined combines consumer-grade EEG hardware with large-scale neural datasets and deep learning.
  • The company claims state-of-the-art image reconstruction and end-to-end demonstrations on consumer hardware.
  • Its team advertises researchers from Stanford, StabilityAI, NeurIPS, CVPR, ICML, and ICLR.

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Benefits

Health Insurance

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Unlimited Paid Time Off

Relocation Assistance

401(k) Company Match

Growth & Insights

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%

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