Arthur Patterson
Founding Partner Emeritus @ Accel
San Francisco, United States
Arthur Patterson is a Series B investor at Accel in San Francisco focused on Software and Analytics. Arthur Patterson is the Founding Partner of Accel.
- Total investments:
- 33
- Last investment:
- Lead investor:
- 27%
Last updated:
For AI agents: llms.txt
Industries Arthur Patterson invests in
Stages Arthur Patterson invests in
Countries Arthur Patterson invests in
Round sizes
Round size
- Series A
- $9M–$13M
- Series B
- $4M–$100M
Investment Focus
Industry
- Software 9 (27%)
- Analytics 5 (15%)
- Information Technology 5 (15%)
- SaaS 3 (9%)
- Machine Learning 3 (9%)
Stage
- Series B 9 (27%)
- Series A 7 (21%)
- Funding Round 4 (12%)
- Seed 3 (9%)
- Series C 3 (9%)
Country
- United States 15 (45%)
- Brazil 1 (3%)
- Ireland 1 (3%)
- Puerto Rico 1 (3%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Druid Software
|
Druid has built its reputation on the development of cellular network products for enterprise and bespoke mobile technology design | $20M / Venture - Series Unknown / Jan 08, 2025 | |
RED Atlas
|
RED Atlas offers a platform that gives real estate data and insight to people working in the property market. It provides tools that let professionals find detailed information about individual properties and trends in the market. Atlas Professional is a product on the site that gives real-time property data, news, and analytics for brokers,investors, and agents. The platform lets users search property records and generate reports that help in planning and decision-making. It makes it possible for people to filter property information and create lists that fit specific needs. The service also supports sharing property details in formats that others can review. | $1.4M / Seed / Jun 29, 2022 | |
100ms
|
100ms is a live-video infrastructure platform that provides subscription-based products to its customers. The company provides a low-code solution for companies looking to add video/audio conferencing within their own applications. To bring real-life interactions to the virtual world seamlessly The increasingly virtual, remote-first world,needs an infrastructure provider that allows these experiences to happen seamlessly. 100ms' best-in-class quality and ease of use are fueling this revolution. Making live video work - our team has been obsessed with this problem for years and solved it at world-class scales for different network and device conditions. A great infrastructure provider also needs to have the shortest integration time - so our foundation is built on the above two principles. | $4.5M / Seed / Oct 05, 2021 | |
Alife
|
Alife develops artificial intelligence tools to assist physicians in increasing a patient's chances of pregnancy success. The company has a mission of helping people have healthy children and connects fertility specialists to patients to assists with IVF.Alife Health was founded in 2020 by Paxton Maeder-York and is headquartered in SanFrancisco, California, United States. | $9.5M / Seed / May 03, 2021 | |
Data.world
|
data.world makes it easy for everyone—not just the “data people”—to get clear, accurate, fast answers to any business question. Our cloud-native data catalog maps your siloed, distributed data to familiar and consistent business concepts, creating a unified body of knowledge anyone can find, understand, and use.data.world is also home to theworld’s largest collaborative data community. It’s where people team up on everything from social bot detection to award-winning data journalism. We use what we learn from this community to improve the enterprise product and vice versa. Our team co-created the Manifesto for Data Practices, the most effective, ethical, and modern approach to data teamwork. More people signed the Manifesto for Data Practices in its first year than signed the Agile Manifesto in its first two years combined. In 2019 DataPractices.org became a Linux Foundation Project. The vendor-neutral community features new, open courseware to help people and organizations improve data practices through inclusion, experimentation, accountability, and impact.We are a Public Benefit Corporation. Most corporations are required to prioritize shareholder returns above all else. Not us. We are legally structured as a Public Benefit Corporation so we can pursue our mission and shareholder value with equal vigor. This ability is rare, powerful, and sustaining. | $26M / Series B / Sep 15, 2020 | |
Sirona Medical
|
Sirona Medical is revolutionizing radiology by delivering a cloud-native platform that unifies the worklist, viewer, reporter, archive, and AI into a single, intuitive workspace. Designed specifically for radiologists, Sirona’s platform simplifies complex workflows, enhances productivity, and empowers practitioners to work as fast as they think.Founded in San Francisco, CA, Sirona combines deep expertise in the practice and business of radiology to create purpose-built solutions that address the evolving needs of the field. By streamlining radiology workflows and integrating cutting-edge AI, Sirona enables radiologists to deliver better, faster, and more efficient care. | $9M / Series A / Aug 28, 2020 | |
CoPilot
|
CoPilot is pioneering Assisted Commerce for big-ticket purchases – starting with cars. You are the one spending the money - shouldn't you have an expert on your side? We founded CoPilot to make that a reality. For the average car buyer, who is not a car expert or enthusiast, car shopping can be a time consuming, frustrating process that leavespeople feeling alone and disadvantaged. CoPilot is changing this dynamic. Like a trusted friend who is knowledgeable about cars, knows where to look and what to buy, CoPilot provides car shoppers with an expert partner who empowers them to discover the perfect car at the best possible price with ease and confidence. | $10M / Series A / Aug 19, 2020 | |
Acalvio Technologies
|
Acalvio provides Advanced Threat Defense (ATD) solutions to detect, engage and respond to malicious activity inside the perimeter. The solutions are anchored on patented innovations in Deception and Data Science. This enables a DevOps approach to ATD, enabling ease of deployment, monitoring and management. Acalvio enriches its threat intelligenceby data obtained from internal and partner ecosystems, enabling customers to benefit from defense in depth, reduce false positives, and derive actionable intelligence for remediation. | $16M / Series B / Jul 26, 2016 | |
QMC Telecom
|
QMC Telecom provides tower for carriers that offer wireless cellular telecommunication services in Puerto Rico. The company was formerly known as QMC Telecom International Holdings Group, LLC. The company was incorporated in 2011 and is based in Sao Paulo, Brazil, with an additional office in San Juan, Puerto Rico. | $100M / Series B / Mar 24, 2015 | |
Krux
|
Krux helps companies deliver personalized commerce, media, and marketing experiences to the right people, in the right way, at the right time across all devices, browsers, and operating systems. Krux’s cloud-based data management platform (DMP) unifies people data from multiple screens and sources into a single view of the individual, analyzes thedata to understand each individual’s preferences, and activates the data across every channel (desktop, mobile, social, display, web, set-top) in real time. Founded in 2010, Krux interacts with over two billion browsers and devices worldwide, serves over 20 billion page views per month, and processes more than 1.5 billion CRM records per month. Krux is a venture-backed company headquartered in San Francisco with offices across four continents. Krux clients such as Kellogg, Time Warner, and Meredith have achieved a 10x return or higher on their investment. Follow Krux on Facebook, Twitter, LinkedIn and Google+. | $35M / Series B / Jun 11, 2014 | |
| See all 33 investments → | |||
Co-Investors
About Accel
Accel invests in sectors such as enterprise software, consumer internet, financial technology, and cybersecurity. It participates in funding rounds ranging from seed and pre-seed stages to growth-stage capital. Beyond direct investment, the organization offers operational resources to assist founders with product development and talent recruitment.The firm connects entrepreneurs with a network of industry peers and mentors to facilitate market expansion.
Accel Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Abhinav Chaturvedi
Partner
|
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Amit Kumar
Partners
|
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Amy Saper
Partner
|
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Anand Daniel
Partner
|
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Andrei Brasoveanu
Partner
|
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FAQ
What does Arthur Patterson invest in?
Arthur Patterson invests primarily in Software, Analytics and Information Technology startups, most often at Series B and Series A stage. Most of the 33 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 Arthur Patterson's check size?
Arthur Patterson typically joins rounds of $9M–$13M at Series A and $4M–$100M 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 Arthur Patterson participates in.
When did Arthur Patterson last invest?
The most recent investment recorded for Arthur Patterson closed in Jan 2025. Shizune tracks 33 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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