Pantheon AI
San Francisco, US · Founded 2023 · Delaware corporation · 4 known investors
AI-enabled architecture startup that speeds up design iteration and construction documents for developers, owners and tenants.
Also known as Pantheon AI
Founders & leadership
Board
Investors · 4
Also in the syndicate · 1
Reported raises · per SEC filings
Form D private placements$18.6M disclosed across 2 of 3 rounds · 2023–2024
▶$12.6MraisedJul 2024 · 5 investors · Other TechnologyRule 506(b)
- Kimberly TanDirector
- David MaceExecutive Officer, Director
- Tiger SunExecutive Officer, Director
- Alexander D. MooreDirector
- Offering amount
- $12.6M
- Amount sold
- $12.6M
- First sale
- Jul 2024
- Incorporated
- Corporation, Delaware, 2023
- Federal exemptions
- 06b
▶$6MraisedApr 2024 · 21 investors · Other TechnologyRule 506(b)
- Tiger SunExecutive Officer, Director
- Alexander D. MooreDirector
- David MaceExecutive Officer, Director
- Offering amount
- $6M
- Amount sold
- $6M
- First sale
- Nov 2023
- Incorporated
- Corporation, Delaware, 2023
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Pantheon AI is a San Francisco-based proptech company applying artificial intelligence to the architecture and building design process. It serves property developers, building owners and tenants, delivering services comparable to those of an architecture firm but with substantially faster iteration cycles, running from early design through to construction documents. The company began by focusing on office buildings and has been expanding into multifamily, hospitality and other building types.
Most of its work to date has involved existing buildings, typically one to three floors, with new-build projects beginning in multifamily. Pantheon AI links its design process to approximated material costs for both commoditized and vendor-specific materials, enabling cost estimates throughout iteration; the company states that this visibility allows designs to be optimized against cost targets and reduces unexpected costs for clients. Management has said the firm intends to evolve over time into a software-as-a-service provider.
Founding story
Pantheon AI was founded in 2023 by David Mace (CEO), Tiger Sun and Georgios Kontominas. Mace has worked on AI at Caltech, Facebook and IBM Watson, Sun's background is in software and Kontominas is an architect. The founders identified substantial repetitive work in the architecture process and set out to use AI to compress iteration cycles so that architects could concentrate on higher-level creative work.
Business model
The company currently delivers architecture-style design services to developers, owners and tenants on a project basis, with the stated intention of transitioning over time to a software-as-a-service model.
Revenue derives from providing architecture services on building projects, with a planned longer-term shift toward software-as-a-service.
Traction
As of October 2024 the company had 11 full-time employees and was running projects mostly on existing buildings of one to three floors, having begun moving into new multifamily buildings.
Latest developments
On October 22, 2024, Pantheon AI exited stealth and announced $25 million in funding led by Andreessen Horowitz with participation from Felicis and 8VC, earmarked for commercial expansion into additional U.S. geographies.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
Positioned in the proptech sector as an AI-enabled alternative to traditional architecture firms, backed by Andreessen Horowitz, Felicis and 8VC.
The company positions faster design iteration cycles as its core differentiator versus conventional architecture practice, combined with continuous cost estimation tied to material pricing. Its team combines AI and software backgrounds from Stanford AI Lab, Facebook, Caltech and IBM Watson with architects previously at Gensler, SOM and KPF.
Technology
Pantheon AI uses proprietary AI technology that iterates on the architecture process through to construction documents at high speed, with the long-term goal of real-time iteration so that an architect and a developer can make major design changes live in a single sitting. The system also incorporates approximated material costs for commoditized and vendor-specific materials to generate cost estimates during iteration.
Go-to-market
Following its 2024 raise, the company said it was focused on expanding commercialization by working with more property developers, owners and tenants, and on expanding into multiple additional U.S. geographies.
Property developers, building owners and tenants, initially in office space and expanding to multifamily, hospitality and other building types.
Geography
Headquartered in San Francisco, with projects in the United States and stated plans to expand into multiple additional U.S. geographies.
History
Founded in 2023, the company spent roughly a year building its core technology before emerging from stealth on October 22, 2024 alongside the announcement of a $25 million funding round led by Andreessen Horowitz, with Felicis and 8VC participating. At that point it employed 11 full-time staff.
Compiled by commissioned research from 4 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.
Founder mafia
2 people who came through Pantheon AI went on to found or lead other companies.
Timeline · 3
launches, deals, and filingsPantheon AI announced $25 million in funding led by Andreessen Horowitz, with participation from Felicis and 8VC, to expand commercialization into multiple U.S. geographies.
$25M source ↗
Pantheon AI publicly exited stealth mode as an AI-enabled architecture startup serving developers, owners and tenants.
After starting with office buildings, the company said it was expanding into multifamily, hospitality and other building types, and beginning work on new buildings in multifamily.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 1
corporate structureIn the news
▸Research sources · 4
primary sources listed
- Pantheon AI Secures $25M in Funding – Commercial Observercommercialobserver.com · web
4 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Pantheon AI do?
- AI-enabled architecture startup that speeds up design iteration and construction documents for developers, owners and tenants.
- Who are Pantheon AI's investors?
- Pantheon AI's investors include 8VC, Andreessen Horowitz, Felicis Ventures.
- How much funding has Pantheon AI raised?
- Pantheon AI has disclosed $18.6M raised across 2 of its 3 known rounds.
- Where is Pantheon AI headquartered?
- Pantheon AI is headquartered in San Francisco, US.