Sam Landman
Co-Founder, General Partner @ Mosaic General Partnership
New York, United States
Sam Landman is a Series A investor at Mosaic General Partnership in New York focused on Software and E-Commerce. Sam Landman is the Co-Founder and General Partner at Mastry. He attended Bucknell University and received his MBA from Dartmouth’s Tuck School of Business.
- Total investments:
- 23
- Last investment:
- Lead investor:
- 52%
Last updated:
For AI agents: llms.txt
Industries Sam Landman invests in
Stages Sam Landman invests in
Countries Sam Landman invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Software 3 (13%)
- E-Commerce 3 (13%)
- Financial Services 3 (13%)
- Retail 2 (9%)
- FinTech 2 (9%)
Stage
- Series A 7 (30%)
- Series D 4 (17%)
- Series C 3 (13%)
- Series B 2 (9%)
- Funding Round 2 (9%)
Country
- United States 13 (57%)
- Australia 1 (4%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Anchor
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Anchor pays companies on schedule. A cloud-based platform that redefines B2B billing, collections, and payments is Anchor's autonomous billing solution. The dangers of fraud and human mistake in B2B payments are eliminated by Anchor by offering an end-to-end billing and collections solution and removing all manual labor from these operations.Anchor was established in 2021 in New York, United States. | $20M / Series A / Jan 29, 2025 | |
Vessel
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Vessel is disrupting the tragically failed housing economy with 21st century technologies so that each person has an equal opportunity for an extraordinary life. | Series A / Jun 30, 2023 | |
Reask
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Reask is a science and technology company that focuses on natural hazard modeling. Reask offers real-time, post-event, and longer-term AI solutions for global weather-related catastrophes by Global Risk mapping and probabilistic trend forecasting of catastrophe risk analytics. | $4.6M / Seed / Jun 15, 2023 | |
Dandelion Energy
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Dandelion Energy offers affordable geothermal heating and cooling installations.Dandelion Energy's home geothermal system replaces your home’s existing air conditioning and heating equipment with a powerful heat pump and safe, underground pipes that move heat between the earth and home.Kathleen Hannun and Rajeez Quazi founded it in 2017,with its headquarters in Palo Alto in California. | $70M / Series B / Nov 15, 2022 | |
Nurx
|
Nurx is a digital healthcare company offering 10 services across reproductive health, at-home testing, dermatology, migraine care, and more. Nurx offers patients transparent pricing and judgement-free care whenever and wherever works best for them. Nurx believes everyone should have the freedom to live well and be in charge of their healthcaredecisions, regardless of their circumstances. | $22.5M / Series C / Aug 11, 2020 | |
Hippo Insurance
|
Hippo Insurance Services offers a different kind of home insurance, built from the ground up to provide a new standard of care and protection for homeowners. Our goal is to make homes safer and better protected so customers spend less time worrying about the burdens of homeownership and more time enjoying their homes and the life within. Harnessingreal-time data, smart home technology, and a growing suite of home services, we are creating the first integrated home protection platform. Hippo is headquartered in Palo Alto, California with offices in Austin and Dallas, Texas, and insurance products available to more than 80 percent of U.S. homeowners in 37 states. Hippo Insurance Services is a licensed property casualty insurance agent with products underwritten by various insurance companies. | $150M / Series E / Jul 21, 2020 | |
RenoFi
|
RenoFi Loans use the after renovation value instead of your home's current value, enabling you to borrow the most money at the lowest rates. RenoFi is not a lender, rather we’ve partnered with lenders who offer RenoFi Loans. These lenders leverage RenoFi's technology platform to seamlessly offer RenoFi Loans. | $6.4M / Series A / Jun 23, 2020 | |
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Dandelion Energy
|
Dandelion Energy offers affordable geothermal heating and cooling installations.Dandelion Energy's home geothermal system replaces your home’s existing air conditioning and heating equipment with a powerful heat pump and safe, underground pipes that move heat between the earth and home.Kathleen Hannun and Rajeez Quazi founded it in 2017,with its headquarters in Palo Alto in California. | Series A / Jan 15, 2020 | |
|
Hippo Insurance
|
Hippo Insurance Services offers a different kind of home insurance, built from the ground up to provide a new standard of care and protection for homeowners. Our goal is to make homes safer and better protected so customers spend less time worrying about the burdens of homeownership and more time enjoying their homes and the life within. Harnessingreal-time data, smart home technology, and a growing suite of home services, we are creating the first integrated home protection platform. Hippo is headquartered in Palo Alto, California with offices in Austin and Dallas, Texas, and insurance products available to more than 80 percent of U.S. homeowners in 37 states. Hippo Insurance Services is a licensed property casualty insurance agent with products underwritten by various insurance companies. | $100M / Series D / Jul 24, 2019 | |
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Dandelion Energy
|
Dandelion Energy offers affordable geothermal heating and cooling installations.Dandelion Energy's home geothermal system replaces your home’s existing air conditioning and heating equipment with a powerful heat pump and safe, underground pipes that move heat between the earth and home.Kathleen Hannun and Rajeez Quazi founded it in 2017,with its headquarters in Palo Alto in California. | Series A / Feb 14, 2019 | |
| See all 23 investments → | |||
Co-Investors
Mastry seeks to invest in the technology sector and also makes investments in real estate.
Mosaic General Partnership Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Fatima Husain
Partner
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Rudy Cline-Thomas
Founder and Managing Partner
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Sam Landman
Co-Founder, General Partner
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Steve Salis
Limited Partner
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FAQ
What does Sam Landman invest in?
Sam Landman invests primarily in Software, E-Commerce and Financial Services startups, most often at Series A and Series D stage. Most of the 23 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Sam Landman?
Public channels for Sam Landman 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 Sam Landman last invest?
The most recent investment recorded for Sam Landman closed in Jan 2025. Shizune tracks 23 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 Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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