Causaly vs Butterfly Network

Butterfly Network has a disclosed valuation of $957M, while Causaly's valuation is not publicly available, making a direct size comparison difficult. Butterfly Network employs 500-1000 people.

Butterfly Network has raised more in total funding at $370M, compared to Causaly's $66M — a gap of $304M. Combined, the two companies have completed 10 known funding rounds.

Butterfly Network leads with an Awaira Score of 85/100, while Causaly sits at 45/100. That 40-point gap reflects real differences in funding, scale, and traction — it's not a vanity metric.

Causaly was founded by Elias Iosif in 2018. Butterfly Network was founded by John Martin in 2011. Visit each company's profile on Awaira for a full founder biography.

Causaly: Causaly built a biomedical AI platform that extracts and maps causal relationships from scientific literature at scale, allowing pharmaceutical researchers and scientists to query cause-and-effect relationships across millions of published papers and clinical documents. The platform used a specialised natural language processing system trained to identify causal assertions in biomedical text, producing a structured knowledge graph of disease mechanisms, drug targets, and biological pathways.\n\nThe company was founded in London in 2018 and was acquired by Elsevier, the academic publishing giant, in 2022. The acquisition gave Elsevier an AI layer to sit atop its vast corpus of scientific publications, enabling researchers using ScienceDirect and other Elsevier products to query causal biological knowledge rather than simply searching for documents. Prior to acquisition, Causaly had built a client base among pharmaceutical R&D teams seeking to accelerate literature review and hypothesis generation.\n\nCausaly represented a niche but strategically important segment of the biomedical AI market: causal reasoning and knowledge graph construction. Its acquisition by Elsevier followed a broader trend of academic publishers acquiring AI startups to enhance their platforms, similar to Wiley acquiring Atypon and Springer Nature building AI discovery tools. The company is now integrated into Elsevier Research Intelligence, extending causal AI capabilities to Elsevier institutional subscribers worldwide. Butterfly Network: Butterfly Network produces the Butterfly iQ, a handheld ultrasound device powered by a proprietary semiconductor chip that replaces traditional piezoelectric transducer arrays with a single silicon chip capable of whole-body imaging. The AI software layer provides real-time image interpretation guidance, enabling clinicians with limited ultrasound training to perform diagnostic scans at the bedside.\n\nThe company is publicly traded on the NYSE under the ticker BFLY and raised over 700 million USD prior to and through its public listing. Butterfly has deployed devices across hospitals, emergency rooms, and point-of-care settings in over 50 countries, with particular penetration in resource-limited healthcare settings where traditional ultrasound equipment is prohibitively expensive or unavailable.\n\nPortable AI-assisted diagnostic imaging represents a structural shift in how and where medical imaging is performed. Butterfly Network has created a defensible position through its proprietary chip architecture, which competitors cannot easily replicate, and through its growing library of AI-assisted clinical guidance tools. The transition from hospital-based imaging to point-of-care diagnostics powered by AI guidance is a multi-decade trend that positions Butterfly at the center of a fundamental change in diagnostic medicine. Butterfly Network operates in the AI Healthcare sector and is headquartered in United States. Founded in 2011 by John Martin, Butterfly Network has raised $370M in total funding, achieving a valuation of $957M as of its latest round. The company's funding journey includes a Seed of $11.1M in 2011, a Series A of $29.6M in 2012, a Series B of $66.6M in 2014, a Series C of $114.7M in 2015, a Series D of $148M in 2016. With approximately 500-1000 employees, Butterfly Network has established itself as a Public-stage player in the AI Healthcare market. The company holds an Awaira Score of 85/100, reflecting its strong position across valuation, funding trajectory, team scale, and market influence. Butterfly Network competes in a rapidly evolving segment alongside other AI Healthcare companies. Based in United States, Butterfly Network is part of a growing international AI ecosystem attracting talent and investment. The AI Healthcare space has attracted significant investment in recent years, with companies racing to capture enterprise and consumer demand for AI-powered solutions.

Butterfly Network got there first, launching in 2011 — that's 7 years of extra runway. Causaly didn't arrive until 2018. In AI, that kind of head start means more training data, deeper customer relationships, and a bigger talent moat.

Causaly has about 1-50 employees; Butterfly Network has about 500-1000. A bigger team usually means more revenue or heavier VC backing, but in AI, small teams can build at massive scale.

Yes — they're direct rivals. Both Causaly and Butterfly Network compete in AI Healthcare, targeting many of the same buyers. If you're evaluating one, you should be looking at the other.