# Patrick Mathieson

> Patrick Mathieson is a Series B investor at Samply (Los Angeles) backing SaaS and Software. See 15 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Samply](https://shizune.co/investors/profile/samply-db2e)
- Location: Los Angeles, United States
- Total investments: 15
- Last investment: Jul 2025
- Lead investor: 27%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/patrickmathieson
- X (Twitter): https://twitter.com/pmmathieson
- Website: http://www.pmathieson.com/

Patrick Mathieson is a Series B investor at Samply in Los Angeles focused on SaaS and Software. Early stage (seed/A) B2B software investor at Toba Capital. Also occasional angel investor.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| SaaS | 4 | 27% |
| Software | 3 | 20% |
| Health Care | 3 | 20% |
| Internet | 2 | 13% |
| B2B | 1 | 7% |

18 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series B | 3 | 20% |
| Series C | 3 | 20% |
| Funding Round | 3 | 20% |
| Seed | 2 | 13% |
| Series A | 2 | 13% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Small Door | Small Door provides veterinary services that are elevated, customer-centric, and hospitality-infused. The company provides superior care, unrivaled transparency, and tech-enabled convenience to help pets and pet parents live better lives together. Founded in 2017, Small Door is headquartered in New York. |  |  | Jul 29, 2025 |  |
| Small Door | Small Door provides veterinary services that are elevated, customer-centric, and hospitality-infused. The company provides superior care, unrivaled transparency, and tech-enabled convenience to help pets and pet parents live better lives together. Founded in 2017, Small Door is headquartered in New York. | $35M | Series C | Jul 29, 2025 |  |
| Small Door | Small Door provides veterinary services that are elevated, customer-centric, and hospitality-infused. The company provides superior care, unrivaled transparency, and tech-enabled convenience to help pets and pet parents live better lives together. Founded in 2017, Small Door is headquartered in New York. | $40M | Series B | Dec 14, 2022 |  |
| Boulevard | Boulevard is the premier salon and spa management platform designed to streamline operations, increase sales, and delight customers. Developed in collaboration with industry-leading owners and operators, the company’s all-in-one platform includes client self-scheduling, CRM, marketing, custom reporting, and integrated payment processing. Boulevarddelivers an intuitive, modern SaaS solution to an industry traditionally underserved by technology, helping them unlock their full potential. Boulevard is based in Los Angeles and was founded in 2016 by Matt Danna and Sean Stavropoulos. | $70M | Series C | Aug 09, 2022 |  |
| Brella | Brella is a child care center that provides flexible scheduling and quality care. The company offers a fully licensed program that features an enrichment-based curriculum, age-appropriate classrooms, and caregiver-child ratios. Brella was founded in 2017 by Darien Williams and Melanie Wolff and is headquartered in Los Angeles, California. | $5M | Seed | Jan 11, 2022 |  |
| Small Door | Small Door provides veterinary services that are elevated, customer-centric, and hospitality-infused. The company provides superior care, unrivaled transparency, and tech-enabled convenience to help pets and pet parents live better lives together. Founded in 2017, Small Door is headquartered in New York. | $20M | Series A | Apr 15, 2021 |  |
| Boulevard | Boulevard is the premier salon and spa management platform designed to streamline operations, increase sales, and delight customers. Developed in collaboration with industry-leading owners and operators, the company’s all-in-one platform includes client self-scheduling, CRM, marketing, custom reporting, and integrated payment processing. Boulevarddelivers an intuitive, modern SaaS solution to an industry traditionally underserved by technology, helping them unlock their full potential. Boulevard is based in Los Angeles and was founded in 2016 by Matt Danna and Sean Stavropoulos. | $27M | Series B | Nov 23, 2020 |  |
| PatientPop | PatientPop is the only complete practice growth solution that empowers healthcare providers to thrive in the digital age. By enhancing and automating each touchpoint in the patient journey — from first impression online, to digital booking, to post-appointment follow-up — PatientPop makes it easy for healthcare providers to attract more patients,manage online reputation, modernize the patient experience, and automate the front office. | $50M | Series C | Aug 25, 2020 |  |
| Skupos | Skupos enables smarter, more lucrative retail by bringing independent businesses, brands, and distributors together on a single platform. The company provides c-store operators with real-time inventory, automated purchasing, sales, ordering, and operational analytics. | $31M | Series B | Jun 10, 2019 |  |
| Skupos | Skupos enables smarter, more lucrative retail by bringing independent businesses, brands, and distributors together on a single platform. The company provides c-store operators with real-time inventory, automated purchasing, sales, ordering, and operational analytics. | $6.4M | Series A | Aug 12, 2018 |  |

10 of 15 investments shown.

## Co-investors
- [Dynamo](https://shizune.co/investors/profile/dynamovc) — VC Fund, 5 deals together
- [Lerer Hippeau](https://shizune.co/investors/profile/lerer-ventures) — VC Fund, 4 deals together
- [Primary Venture Partners](https://shizune.co/investors/profile/primary-venture-partners) — VC Fund, 4 deals together
- [C&S Family Capital](https://shizune.co/investors/profile/c-s-family-capital) — VC Fund, 3 deals together
- [Index Ventures](https://shizune.co/investors/profile/index-ventures) — VC Fund, 3 deals together
- [Bonfire Ventures](https://shizune.co/investors/profile/bonfire-ventures) — VC Fund, 2 deals together

## About Samply

VC Fund · Boston, United States

A tool for musicians to consolidate their projects and efficiently gather feedback.

3 contacts available at Samply.

| Name | Title | Profile |
| --- | --- | --- |
| Eric Schirtzinger | Co-founder & CEO | https://shizune.co/investors/profile/eric-schirtzinger |
| Justin Swaney | Co-Founder & CTO | https://shizune.co/investors/profile/justin-swaney-f701 |
| Patrick Mathieson | Seed Investor | https://shizune.co/investors/profile/patrick-mathieson |

## Similar investors

### Similar stage
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund
- [FJ Labs](https://shizune.co/investors/profile/fj-labs) — VC Fund

## FAQ

### What does Patrick Mathieson invest in?

Patrick Mathieson invests primarily in SaaS, Software and Health Care startups, most often at Series B and Series C stage. Most of the 15 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Patrick Mathieson last invest?

The most recent investment recorded for Patrick Mathieson closed in Jul 2025. Shizune tracks 15 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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