Patrick Mathieson
Seed Investor @ Samply
Los Angeles, United States
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.
- Total investments:
- 16
- Last investment:
- Lead investor:
- 25%
Last updated:
For AI agents: llms.txt
Industries Patrick Mathieson invests in
Stages Patrick Mathieson invests in
Countries Patrick Mathieson invests in
Contacts
| Type | Contact | Validation |
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| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
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Investment Focus
Industry
- SaaS 4 (25%)
- Software 3 (19%)
- Health Care 3 (19%)
- Internet 2 (13%)
- B2B 1 (6%)
Stage
- Series B 3 (19%)
- Series C 3 (19%)
- Seed 2 (13%)
- Series A 2 (13%)
- Funding Round 2 (13%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Small Door
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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 | |
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Small Door
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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 | |
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Small Door
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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
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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
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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 | |
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Small Door
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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 | |
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Boulevard
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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
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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
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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 | |
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Skupos
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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 | |
| See all 16 investments → | |||
Co-Investors
About Samply
A tool for musicians to consolidate their projects and efficiently gather feedback.
Samply Contacts
| Name | Phone | Socials | |
|---|---|---|---|
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Eric Schirtzinger
Co-founder & CEO
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Justin Swaney
Co-Founder & CTO
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Patrick Mathieson
Seed Investor
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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 16 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 Patrick Mathieson?
Public channels for Patrick Mathieson 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 Patrick Mathieson last invest?
The most recent investment recorded for Patrick Mathieson closed in Jul 2025. Shizune tracks 16 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 Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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