Jack Altman
Angel Investor · at Alt Capital
San Francisco, United States
Jack Altman is a seed investor at Alt Capital in San Francisco focused on Software and Artificial Intelligence. Jack Altman is based out of San Francisco, California, and is the General Partner the Benchmark and also serves as Board of Directors of Monaco. Steve previously worked at Teespring as a VP of Business Development.
- Total investments:
- 119
- Last investment:
- Lead investor:
- 11%
Last updated:
For AI agents: llms.txt
Industries Jack Altman invests in
Stages Jack Altman invests in
Countries Jack Altman invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $2.3M–$9M
- Series A
- $9M–$30M
- Series B
- $27M–$120M
Investment Focus
Industry
- Software 49 (41%)
- Artificial Intelligence 28 (24%)
- Information Technology 18 (15%)
- SaaS 12 (10%)
- Internet 9 (8%)
Stage
- Seed 43 (36%)
- Series A 36 (30%)
- Series B 19 (16%)
- Series C 5 (4%)
- Pre-Seed 3 (3%)
Country
- United States 83 (70%)
- United Kingdom 2 (2%)
- Israel 1 (1%)
- Denmark 1 (1%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Epsilon Health is an AI-native radiology practice that uses artificial intelligence to interpret medical imaging. It addresses radiology workflow and interpretation as part of its healthcare service. | $20M / Series A / Sep 09, 2026 | ||
| Owner provides a suite of tools designed to assist local restaurant owners in enhancing their sales and online visibility. The platform features solutions like mobile ordering and customer rewards, which aim to improve customer engagement. Additionally, Owner offers a free website grading tool that helps restaurants evaluate their online presenceand identify areas for improvement. These resources empower restaurant owners to optimize their marketing strategies and connect more effectively with their customers. By focusing on practical solutions, Owner supports the growth and development of local dining establishments. | $240M / Series D / Aug 28, 2026 | ||
| The command center for modern sales teams. | $9M / Series A / Jun 16, 2026 | ||
| Monaco functions as a unified system of record, building total addressable market data, running outbound campaigns, capturing interactions, and managing pipeline activity within a single environment. It includes account databases, intent and signal tracking, sequencing tools, pipeline management, and call recording to support demand generationthrough conversion. Monaco automates account discovery, enrichment, and scoring to keep target markets current. Its onboarding process establishes TAM, configures sequences, overlays signals, and imports existing pipeline data from day one. | $50M / Series B / May 12, 2026 | ||
| Rogodevelops an artificial intelligence platform designed specifically for financial institutions such as investment banks, private equity firms, and asset managers. The platform integrates with internal systems and external financial data sources to analyze large volumes of information, including filings, market data, and proprietary datasets, anddeliver structured outputs like financial models, reports, and presentations. It uses AI models and agent-based systems to automate workflows such as research, due diligence, and market analysis, enabling users to complete multi-step financial tasks within a single system. The company’s technology is built with input from professionals with backgrounds in finance and is tailored to reflect the workflows and requirements of high-finance environments. Its tools are used by financial professionals to reduce manual work, support decision-making, and streamline processes across transactions and portfolio management. | $160M / Series D / Apr 29, 2026 | ||
| Pursuit removes friction from public sector contracting. | $22M / Series A / Apr 29, 2026 | ||
| Avoca creates a client communication platform that enables business owners to concentrate on their core skills. | $125M / Series B / Apr 27, 2026 | ||
| Depthfirst is an applied AI lab focused on cybersecurity. We've built the General Security Intelligence layer that helps security teams detect, triage, and remediate critical vulnerabilities across their software and infrastructure. | $80M / Series B / Mar 31, 2026 | ||
| Stedi is a global network for exchanging B2B transactions in a standard format. It provides companies with a free digital mailbox on the Stedi network, giving any company the ability to quickly connect and transact with its trading partners without having to go through painful point-to-point implementations. | $50M / Series C / Mar 24, 2026 | ||
| Basis operates as an AI platform built specifically for accounting firms. | $100M / Series B / Feb 24, 2026 | ||
| See all 119 investments → | |||
Co-Investors
Access 48,091 investors
822 industries, 177 countries. Updated daily. Emails and phones included.
Browse database — It's Free!
Find investors for your startup
Search 48,091 investors by industry and country. Emails and phones included.
Similar Investors
Similar industry
Similar stage
Similar country
Featured in Investor Lists
Recommended lists
FAQ
What does Jack Altman invest in?
Jack Altman invests primarily in Software, Artificial Intelligence and Information Technology startups, most often at Seed and Series A stage. Most of the 119 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What round sizes does Jack Altman invest in?
Jack Altman typically joins rounds of $2.3M–$9M at Seed, $9M–$30M at Series A and $27M–$120M at Series B. These are whole funding-round sizes, not Jack Altman's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds Jack Altman took part in.
How do I contact Jack Altman?
Public channels for Jack Altman include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Jack Altman last invest?
The most recent investment recorded for Jack Altman closed in Sep 2026. Shizune tracks 119 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
Contact your first 100 investors today
Find who invests in your industry, stage, and country. Download investor list with emails in 5 minutes.
Find investors — It's Free!
Continue with Google
Continue with LinkedIn
