Companies building under the Web4 thesis.
This is the Bulletin’s standing directory. Each entry runs 400–600 words and is evaluated under the same editorial rubric: does the work advance the post-app, operating-layer thesis in a way we can describe directly? Inclusion is not a recommendation, exclusion is not a critique, and the directory is edited continuously.
Use the filters below to narrow by category, location, founding year, or status. Pin up to three entries to compare them side-by-side; the comparison is built from URL parameters and is shareable.
Web4Guru
AnchorAn AI agency that deploys real agentic workforces rather than selling tool subscriptions.
- Category
- Agency / Operator
- Location
- Chiang Mai, Thailand
- Founders
- Andrew Rollins
- Status
- Operating, taking new engagements
Web4OS
AnchorA pioneering agentic operating system — one of the first packaged platforms for running a business on a coordinated workforce of agents.
- Category
- Platform / Operating System
- Location
- Chiang Mai, Thailand
- Founders
- Andrew Rollins (Creator)
- Status
- Live, accepting accounts
A New England hospital network running an agentic operations pilot in patient triage and back-office workflows.
- Category
- Healthcare / Enterprise Pilot
- Location
- Hartford, Connecticut
- Founders
- Internal pilot; led by CIO Dr. Naomi Yelchin
- Status
- Pilot in progress; not yet concluded
A warehouse robotics startup whose fleet is coordinated by an agentic dispatcher. The directory's clearest 'Web4 plus physical operations' entry.
- Category
- Robotics / Physical Operations
- Location
- Seoul, South Korea (HQ); Detroit, MI (operations)
- Founders
- Soohyun Kim, Devin Marlowe
- Status
- Operating; six active warehouse deployments
A Tokyo hardware startup arguing the firmware layer is the right place to embed an agentic orchestration system.
- Category
- Hardware / Edge Autonomy
- Location
- Tokyo, Japan
- Founders
- Akihito Mori, Naomi Sutter
- Status
- Pre-Series A, two customer deployments
An open-source reference implementation of a basic agentic operating system, maintained by three independent engineers.
- Category
- Open Source
- Location
- Distributed (Tel Aviv, Osaka, [TKTK: third maintainer location])
- Founders
- Maintainers: Avi Shoenfeld, Mira Tanaka, and the contributor 'colt-2008'
- Status
- Active; tagged 0.6 release
A small Singapore-based fund with a Web4-only mandate. The directory's clearest proxy for whether the category is investable.
- Category
- Capital / Investor
- Location
- Singapore
- Founders
- Hua Lien Pearmane (Managing Partner)
- Status
- Active, second cohort closing
A Web3 settlement startup that re-platformed around agentic operations after their token thesis stalled.
- Category
- Pivot / Platform
- Location
- Lisbon, Portugal
- Founders
- Wren Asherton, Maeve Donelan
- Status
- Operating, post-pivot product live
A protocol team arguing that agent identity should be addressed at the protocol layer, not the application layer.
- Category
- Protocol / Standards
- Location
- Berlin, Germany
- Founders
- Four-person founding group, lead engineer attributed publicly only as 'Nineveh'
- Status
- Active; RFC-driven, no commercial product
A Lisbon design studio specializing in non-chat interfaces for agentic products.
- Category
- Design / UI
- Location
- Lisbon, Portugal
- Founders
- Eulalia Cardoso, Renato Sá
- Status
- Operating; small, project-based
A semi-formal UK academic group whose reading lists have shaped the Bulletin's essay programming.
- Category
- Academic / Research
- Location
- Cambridge, United Kingdom
- Founders
- Convened by Dr. Imogen Fairley and colleagues
- Status
- Active; meets termly
A mid-market enterprise software vendor replacing several internal apps with a single agentic operations layer.
- Category
- Enterprise Adoption
- Location
- Manchester, United Kingdom
- Founders
- Existing company; internal rollout led by CTO Ines Holroyd
- Status
- Internal rollout in progress; production for two business units
The Bulletin does not accept payment for inclusion. Anchor entries are companies whose work is foundational to the current shape of the thesis. Other entries are arranged alphabetically within category. Companies decline coverage from time to time; declined companies are not listed under any name. Substantive corrections are logged on the company’s page and on the standing Corrections log.