Rick Marini
Co-Founder, President & COO @ Rails
San Francisco, United States
Rick Marini is a seed investor at Rails in San Francisco focused on Internet and Software. Rick Marini is the Co-Founder, President and COO of Rails. He previously worked at Grindr as a Chief Operating Officer. Rick Marini attended Harvard Business School.
- Total investments:
- 58
- Last investment:
- Lead investor:
- 2%
Last updated:
For AI agents: llms.txt
Industries Rick Marini invests in
Stages Rick Marini invests in
Countries Rick Marini invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $1M–$5M
- Series A
- $4M–$20M
- Series B
- $10M–$50M
Investment Focus
Industry
- Internet 9 (16%)
- Software 9 (16%)
- E-Commerce 9 (16%)
- Mobile 7 (12%)
- SaaS 6 (10%)
Stage
- Seed 30 (52%)
- Series A 18 (31%)
- Series B 3 (5%)
- Angel 1 (2%)
- Pre-Seed 1 (2%)
Country
- United States 50 (86%)
- Canada 1 (2%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Tough Day
|
Tough Day enables companies to provide employees with a safe place for candid conversation and expert guidance to resolve their workplace issues before they become messy, costly problems.When work gets tough, the tough get working. | $1.6M / Pre-Seed / Jun 01, 2025 | |
Enki
|
Enki builds AI products for the workforce development and upskilling industry. Offers a dynamic and adaptive educational experience that caters to the evolving needs of professionals seeking to enhance their technical skills. | $1.5M / Seed / Jun 17, 2022 | |
Stronghold
|
Stronghold creates virtual payment networks that enable developers to access legacy and next-generation payment networks all through a simple API. The company was founded in 2017 in San Francisco, CA by Tammy Camp and Sean Bennett. Stronghold is a financially viable company and does not need additional funding rounds. | $3.3M / Seed / Jul 12, 2018 | |
|
Stronghold
|
Stronghold creates virtual payment networks that enable developers to access legacy and next-generation payment networks all through a simple API. The company was founded in 2017 in San Francisco, CA by Tammy Camp and Sean Bennett. Stronghold is a financially viable company and does not need additional funding rounds. | $3.3M / Seed / Jul 12, 2018 | |
Pray.com
|
Pray.com is a social impact company driven by a mission to grow faith & cultivate community. Started by Steve Gatena and his three co-founders in 2016, the company is comprised of people from all backgrounds and is building Pray.com as the digital destination for faith. At Pray.com prayer is the priority and the Pray.com app is the easiest wayto incorporate prayer into your daily life. The Pray.com app is the world's #1 app for Daily Prayer and faith-based media content. In 2020, Pray.com became the highest-grossing religious media app in history. In addition to its explosive growth in revenue and subscribers, Pray.com became the first and only mental & spiritual health app federally approved to host the President of the United States as well as other elected officials on the platform so they could promote the power of prayer, highlight the health benefits of faith, and promote religious equity, diversity, and inclusion. As an inter-faith platform, Pray.com has brought together religious, celebrity, and political leaders across industries for major events that pray for, discuss, and act on social issues like: race relations, forced migration, and religious inclusion. Pray.com's marque events include participation from the White House, the National Hispanic Christian Leadership Conference, the Vatican City state, the Southern Baptist Convention, and more. In addition to the success of the Pray.com app, Pray.com's marquee events, and fundraising for social causes, Pray.com's studio division has produced the largest library of Biblically inspired original content in English, Spanish, and Portuguese and its content has been syndicated across broadcast media platforms and new media platforms like SiriusXM Satellite Radio, DirectTV, and YouTube. Pray.com's mission is to grow faith & cultivate community and its vision is to create a world where everyone leaves a legacy of helping others. | $2M / Seed / Jun 29, 2017 | |
Grove Collaborative
|
Launched in 2016 as a Certified B Corp, Grove Collaborative is transforming consumer products into a positive force for human and environmental good. Grove creates and curates high-performing, planet-first products across household cleaning, personal care, laundry, clean beauty, and pet, serving millions of households across the U.S. The Grove Co.brand helped create the zero-waste home care category and continues to be the market leader. Every item Grove offers, from both brands they craft — like their flagship brand Grove Co., plastic-free personal care line Peach, and clean skincare brand Superbloom — and from exceptional third-party brands, has been thoroughly vetted against strict standards for clean ingredients, efficacy, sustainability, cruelty-free formulas, and ethical supply chain practices. Grove, a public benefit corporation, is on a mission to move Beyond Plastic. Grove is the first plastic neutral retailer in the world and is committed to being 100% plastic-free by 2025. For more information, visit grove.co/beyondplastic. | $15.6M / Series B / Apr 27, 2017 | |
Jaanuu
|
Jaanuu was founded to reimagine the multi-billion dollar medical apparel market via the industry's first contemporary, Antimicrobial-finished products. Since its launch, Jaanuu has sold product around the globe and has quickly become the fastest growing company in its category. For more information, please contact support@jaanuu.com. | $5M / Seed / Apr 19, 2017 | |
Finrise
|
The Finrise mission is to increase the accessibility of quality healthcare through a suite of transparent financial products, starting with patients of dental, vision, audiology and veterinary services.Patients deserve better, which is why we’re committed to putting patient empowerment and customer service at the forefront of healthcarelending. Every day, patients receive instant and transparent term loans right in the doctor's office onto their phones. To expand reach, Finrise looks beyond simple FICO scores, which were created over 30 years ago in an era before smartphones and internet access.Finrise empowers doctors to treat without the limitation of affordability. By combining care, coverage, and change, we’re building a solution that doctors prefer for their patients. | $5.3M / Seed / Oct 19, 2016 | |
BrightCrowd
|
BrightCrowd improves engagement among students and alumni through simple, digital community books. By focusing on more intimate networks, these books allow members of a specific class or group to share a bit about themselves and get a more personal view of their classmates. | Seed / Oct 11, 2016 | |
Tonal
|
Tonal is a smart home gym that uses artificial intelligence and expert-led coaching to provide strength training.It manufactures and provides Tonal, fitness training equipment. The equipment is installed on walls and offers personalized workouts through it. It also provides workout plans, such as building muscles, balancing strength, and athleticperformance based on individual requirements. It also offers live-recorded classes by coaches. Aly Orady founded Tonal in 2015 and is headquartered in San Francisco, California. | $12M / Series A / Oct 01, 2016 | |
| See all 58 investments → | |||
Co-Investors
About Rails
Rails operates as a crypto derivatives trading company.
Rails Contacts
| Name | Phone | Socials | |
|---|---|---|---|
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Rick Marini
Co-Founder, President & COO
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Rick Marini
Co-Founder, President & COO
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FAQ
What does Rick Marini invest in?
Rick Marini invests primarily in Internet, Software and E-Commerce startups, most often at Seed and Series A stage. Most of the 58 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Rick Marini's check size?
Rick Marini typically joins rounds of $1M–$5M at Seed, $4M–$20M at Series A and $10M–$50M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Rick Marini participates in.
How do I contact Rick Marini?
Public channels for Rick Marini 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 Rick Marini last invest?
The most recent investment recorded for Rick Marini closed in Jun 2025. Shizune tracks 58 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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