About Antigravity
Antigravity is a venture capital firm founded in 2022. It is primarily based out of San Francisco, United States. As of Mar 2026, Antigravity is an active investor, having invested in 8 companies, with 2 new investments in the last 12 months. It primarily invests in Seed round in United States based startups. Its investments are spread across a wide range of sectors from Enterprise Applications to High Tech and Food and Agriculture Tech. Most recently it participated in the $***** Seed round of Respan Overall, Antigravity portfolio has seen 1 acquisition, namely Tome. A lot of funds co-invest with Antigravity, with names like Gradient Ventures sharing a substantial percentage of its portfolio. Antigravity has team of 2 people including 2 partners.Key Metrics
Team Members
Portfolio Sectors
Portfolio Locations
Rounds of Entry
Seed
Portfolio Acquisitions
Antigravity's List of Top Investments
Antigravity has a portfolio of 8 companies. Their most notable investments include Tome and Respan.Their portfolio spans across and United States. They have invested in Enterprise Applications, High Tech, Food and Agriculture Tech and 5 other sectors, across stages such as Seed stage. Here is the list of top investments by Antigravity:1. Tome
Cloud-based platform for presentation tools. It provides a video devotional app that allows users to edit and create slides for presentations. It offers features such as web embedded live images, prototype design for 3D models, theme creation, screen sharing, etc. It can be used in sectors of engineering, product management, designing, etc.
Key facts about Tome
- Founded Year: 2020
- Location: San Francisco (United States)
- Stage: Acquired
- Total Funding till date: $81M
- Employee Count: 37 as on Dec 31, 2022
- Investors: Coatue, Lightspeed Venture Partners and 12 Others
- Latest Funding Round: Series B, Feb 22, 2023, $*****
- Highlight: Acquired
2. Respan
Provider of an engineering platform for tracing, evaluating, and improving AI. The platform offers tools for monitoring, optimizing, and deploying AI agents. It provides features such as gateway observability, evaluations, and prompt optimization. The platform supports integrations with various SDKs, providers, and frameworks. It offers security and trust features, including compliance with international safety and security standards.
Key facts about Respan
- Founded Year: 2023
- Location: San Francisco (United States)
- Stage: Seed
- Total Funding till date: $5.5M
- Investors: Gradient Ventures, Hat-Trick Capital and 4 Others
- Latest Funding Round: Seed, Mar 18, 2026, $*****
3. Sudowrite
AI-based book writing platform for publishers. The platform provides features such as generating possibilities based on users plots, wormholes that create multiverse concepts based on existing stories, and more.
Key facts about Sudowrite
- Founded Year: 2020
- Location: San Francisco (United States)
- Stage: Funding Raised
- Employee Count: 5 as on Jul 01, 2024
- Investors: Garuda, Caffeinated Capital and 2 Others
4. Sentra
Developer of an organizational memory system that transforms company knowledge. The system creates a unified timeline of decisions and commitments. It identifies risks in real time and provides personalized job assignments. The system accelerates new hire ramp-up with contextual knowledge delivery.
Key facts about Sentra
- Founded Year: 2025
- Location: San Francisco (United States)
- Stage: Seed
- Total Funding till date: $5M
- Investors: Inovia Capital, Precursor Ventures and 5 Others
- Latest Funding Round: Seed, Jan 28, 2026, $*****
Aquarium Learning provides training datasets for AI models. Enables users to build better models and has the capability to automatically sample the best data to sample to label and retrain on. It features embedding search technology and provides solutions to analyze models & understand datasets.
Key facts about Aquarium Learning
- Founded Year: 2020
- Location: San Francisco (United States)
- Stage: Seed
- Total Funding till date: $2.75M
- Employee Count: 1 as on Dec 31, 2024
- Investors: Sequoia Capital, Zero Prime Ventures and 4 Others
- Latest Funding Round: Seed, Feb 24, 2021, $*****
- Highlight: Editors' Pick
Antigravity's Year-on-Year Investment Trends
As of Mar 2026, it has made 2 investments in this year. Its most recent first time investment was in Respan.Antigravity's Investments by Stage
Antigravity has made 2 investments in Seed stage with an average round size of $5M.Antigravity's Investments by Sector
Antigravity has a diverse portfolio, with companies operating in the Enterprise Applications and Enterprise Infrastructure. Notably, it has invested in 8 Tech companies, 7 Software companies, 6 Enterprise (B2B) companies and at least 5 companies focusing on Saas.Sector | No. of Investments |
|---|---|
Enterprise Applications | 2 |
Enterprise Infrastructure | 1 |
Note: We have considered here, only first round of investments
Antigravity's Investments by Geography
Antigravity has made most investments in United States (2).Antigravity's recent investments
Antigravity has made 2 investments in 2026 so far - Respan and Sentra.Here are the most recent investments by Antigravity:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Mar 18, 2026 | United States | Seed | 8046 | [+4] | |
Jan 28, 2026 | United States | Seed | 8912 | [+5] |
Acquired companies in Antigravity's Portfolio
1 company from Antigravity's portfolio has been acquired. The most recent acquisition was Tome in Jan 2024 by The University of California for $*****.Here are Antigravity's portfolio companies that got acquired most recently:
Company | Acquisition Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Jan 02, 2024 | - | - | 1348 |
Team profile of Antigravity
Antigravity has a team of 2 members including 2 Partners located in United States. Antigravity's team does not sit on the board of any company as of now.Co-investors of Antigravity
Over the past year, 11 investors have co-invested in Antigravity's portfolio companies. This includes funds and angels.
- Invested before Antigravity: Y Combinator has invested before Antigravity.
- Top Co-investors of Antigravity: 10 investors entered a company along with Antigravity. These include investors like Gradient Ventures (1 company).
Recent News related to Antigravity
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Respan raises $5M to bring proactive observability to AI agentsSiliconAngle•Mar 18, 2026•Respan, Antigravity, Hat-Trick Capital, Alpen Capital and 3 others
