197 Series A startups in United States

197 Series A startups in United States with 380 founders and decision-makers, led by San Francisco. 177 verified founder emails. Updated 2026-10-03.

Key findings

• FindMeMail tracks 197 Series A startups in United States, with 380 founders and decision-makers listed.
• San Francisco is the top city, with 24 of them (12%), followed by New York (21).
• The most common team size is 1-10 employees (76% of companies).
• 4 (2%) were founded in the last three years.
• 95 companies (48%) have at least one verified founder email, 177 verified emails in total.

Breakdown

Top cities

• San Francisco: 24 (12%)
• New York: 21 (11%)
• Los Angeles: 9 (5%)
• Seattle: 7 (4%)
• Brooklyn: 7 (4%)
• San Diego: 6 (3%)
• San Jose: 5 (3%)
• Austin: 4 (2%)

Team size (employees)

• 1-10: 150 (76%)
• 11-50: 39 (20%)
• 51-100: 6 (3%)
• 101-250: 1 (1%)
• 251-500: 1 (1%)

Founded (last 10 years)

• 2017: 16 (8%)
• 2018: 15 (8%)
• 2019: 10 (5%)
• 2020: 19 (10%)
• 2021: 6 (3%)
• 2022: 6 (3%)
• 2023: 6 (3%)
• 2024: 2 (1%)
• 2025: 2 (1%)

Recently added Series A startups in United States

• Felux — Cleveland, United States: Demand intelligence for steel service centers — built from the inbox your team already uses.
• Ambys Medicines — South San Francisco, United States: Ambys Medicines is a biotechnology company focused on discovering and developing regenerative and restorative therapies.
• Nimble Collective — Mountain View, United States: Nimble Collective is a cloud animation platform that revolutionizes the way animation is created.
• Lumetra — Los Angeles, United States: Empowering the Enterprise with Computer Vision Intelligence.
• JobPath Partners — New York, United States: Provides services to disadvantaged job seekers and develops powerful technology that helps job seekers and companies meet their goals.
• RealBlocks — New York, United States: RealBlocks is a technology platform that delivers online access to alternative investments.
• Dauntless Pharmaceuticals — San Diego, United States: Dauntless Pharmaceuticals is a biotechnology company that focuses on the development of drugs.
• Deed — Brooklyn, United States: Deed provides a social impact platform to connect people with causes and businesses with social impact.
• AdStage — San Francisco, United States: AdStage is an advertising technology startup powering paid marketers to understand the business impact of their campaigns.
• Replenium — Seattle, United States: Replenium is a Provider of open subscription platform.
• Invati — Colleyville, United States: Invati specializes in next generation enterprise business applications for Private Equity, Mortgage and Financial Services.
• Youreka Labs — Baltimore, United States: Youreka Labs is a Salesforce-native application for simplifying smart mobile forms and procedures at scale.
• Pluto VR — Seattle, United States: Pluto VR offers shared presence communication through virtual and augmented reality technology.
• Tippsy — Carson, United States: Tippsy is an online e-commerce platform that promotes a modern lifestyle of drinking for Japanese sake.
• Frustum — Boulder, United States: Frustum focuses on the design and topology optimization tools for designers through the Generate software platform.
• MC Squares — Denver, United States: USA Manufacturer producing Life Transforming Products For The Home, Office and Anywhere In-Between
• Meissa Vaccines — San Francisco, United States: Meissa Vaccines is a pharmaceutical company focused on advancement of unmet vaccines against viruses that cause serious human diseases.
• Lumeda — Rocky Hill, United States: Lumeda is a biotechnology company that enables practical intraoperative photodynamic therapy for treating lung cancer.
• AEENA Dx — Mountain View, United States: AEENA Dx is developing a saliva-based platform for the detection of cancer and other diseases
• LifeDojo — San Francisco, United States: The Grassroots Workplace Wellbeing Company
• EvoAktiv Corp. — Raleigh, United States: Innovative BioAg and LifeTec Products
• Cleanshelf — San Mateo, United States: Cleanshelf is an all-in-one solution to track, optimize, and benchmark your cloud software subscriptions.
• Mass Appeal — New York, United States: Mass Appeal is a company documenting the cultural convergence of art, music, skate, and fashion.
• Livionex ( LIVFRESH Dental) — Los Gatos, United States: Livionex ( LIVFRESH Dental) is a biotech company.
• Lumi — Los Angeles, United States: Lumi is a packaging supply chain platform for online brands.
• Solstice — Seattle, United States: Solstice is a cannabis company that produces and manufactures cannabis products to consumers.
• Honcho — Longmont, United States: Honcho is a software company specializing in elevating company cultures by improving the nature and quality of written communications
• GGWP — San Francisco, United States: GGWP provides a gaming tool to help reduce toxic and disruptive in the game.
• Modern Fertility — San Francisco, United States: Modern Fertility is a women's health company closing the fertility information gap by letting women test key fertility hormones at home.
• HeartVista — Los Altos, United States: HeartVista is a medical technology company.

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Frequently asked questions

How many Series A startups in United States are there?

FindMeMail currently lists 197 Series A startups in United States with at least one founder or decision-maker identified. The count updates daily as new companies are added.

Where are most Series A startups in United States based?

San Francisco (24), New York (21), Los Angeles (9).

How do I contact founders of Series A startups in United States?

177 verified founder emails are available for these companies on FindMeMail. Create a free account to get 50 free reveals, then buy one-time credit packs from $12.

Related reports

• Software companies in United States (3,675)
• Artificial Intelligence (AI) companies in United States (2,382)
• Seed-stage startups in United States (1,905)
• Information Technology companies in United States (1,861)
• Health Care companies in United States (1,647)
• E-Commerce companies in United States (1,545)
• SaaS companies in United States (1,304)
• Pre-seed startups in United States (1,096)
• Financial Services companies in United States (1,062)
• Manufacturing companies in United States (959)
• Consulting companies in United States (949)
• Internet companies in United States (824)

Methodology: counts include companies in the FindMeMail database with at least one identified founder or decision-maker. Data refreshes automatically as new companies are added.