Egra
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Egra.ai develops Reinforcement Learning from Biofeedback (RLBF), pairing EEG with other biosignal modalities to convert involuntary human brain responses into reward signals for training AI models. It is building a foundation model that maps multimodal biosignals to error and preference signals across text, audio, and video, along with the hardware and pipeline to feed these signals into AI labs' post-training stacks.
Also known as Egra AI
Investors · 2
Company profile
researched Aug 2026Egra is a neurotechnology and artificial intelligence company developing foundation models for electroencephalography (EEG) and other biosignal modalities. Its stated aim is to align AI systems to human neural responses by converting involuntary biosignals into reward signals usable in model training, an approach the company calls Reinforcement Learning from Biofeedback (RLBF). The company frames this as an alternative to conventional human-feedback signals such as clicks, thumbs ratings, star ratings and written rationales, arguing that neural responses are denser, personalizable and can surface subconscious reactions such as the uncanny valley effect.
The product roadmap has three components: a foundation model that maps multimodal biosignals to error and preference signals across text, audio and video; a capture stack of lab-grade and consumer-grade hardware that records biosignals time-locked to stimulus onset with millisecond-accurate alignment; and an alignment platform that converts raw biosignal data into a reward stream intended to plug into the post-training pipelines of frontier AI labs. The company is reported to have around six employees and is recruiting AI researcher, engineer and intern roles in New York City.
Business model
Egra develops proprietary models, biosignal capture hardware and a pipeline that delivers reward signals into the training workflows of AI model developers.
Traction
Reported total funding of $5.5 million and a team of approximately six employees.
Latest developments
In April 2026 Egra was reported to have secured $5.5 million in new investment capital, an announcement also carried on the company's own website. The proceeds were described as funding further development of its EEG foundation models and expansion of the team.
▸Full profile — market position, technology, go-to-market, geography
Market position
Egra operates in neurotechnology applied to AI alignment, positioning biosignal-derived reward signals as a substitute for annotation-based human preference data used in frontier model training.
Egra contends that involuntary biosignals provide information-dense and personalizable feedback that annotation pipelines based on explicit human preference labels cannot reproduce, including responses to subconscious effects.
Technology
Egra's core technology is a foundation model trained on EEG and other biosignal modalities that maps multimodal neural and physiological data to error and preference signals across text, audio and video content. Supporting this is a data-capture stack combining lab-grade and consumer-grade hardware that records biosignals time-locked to stimulus onset with millisecond-accurate alignment, and an alignment platform that converts raw biosignal recordings into a reward stream for model post-training. The company describes the overall method as Reinforcement Learning from Biofeedback (RLBF).
Go-to-market
The company positions its alignment platform for integration into the post-training stacks of AI laboratories developing frontier models.
Geography
The company lists open roles based in New York City.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 1
launches, deals, and filingsEgra announced it had secured $5.5 million in new investment capital to advance development of its EEG foundation models and expand its team.
$5.5M source ↗
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 8
primary sources listed
- Egra Secures $5.5M intrysignalbase.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Egra do?
- Egra builds EEG-based foundation models that turn involuntary biosignals into reward signals for AI alignment.
- Who are Egra's investors?
- Egra's investors include Courtside Ventures, Link Ventures.


