Lightspeed Venture Partners
VC Fund
Menlo Park, United States
Lightspeed Venture Partners is a venture capital firm that engages in consumer, enterprise, technology, and cleantech markets. It focuses on seed, early-stage, later-stage, expansion-stage, start-ups, growth companies, and incubation, and specializes in debt financing for start-ups and growth companies.Lightspeed Venture Partners invests invarious sectors that include enterprise, consumer, big data, bitcoin, enterprise technology, cleantech, mobile, internet, financial technology, cloud solutions, e-commerce, storage, media, networking, energy, and software, software-as-a-service, information technology, biotechnology, and social.
- Total investments:
- 2066
- Last investment:
- Lead investor:
- 40%
- Fund size:
- $2.4B
- Last fund:
Last updated:
For AI agents: llms.txt
Industries Lightspeed Venture Partners invests in
Stages Lightspeed Venture Partners invests in
Countries Lightspeed Venture Partners invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Round size
- Seed
- $2.5M–$30M
- Series A
- $7.5M–$90M
- Series B
- $15M–$125M
Investment Focus
Industry
- Software 207 (10%)
- Information Technology 108 (5%)
- Artificial Intelligence 101 (5%)
- FinTech 66 (3%)
- Financial Services 64 (3%)
Stage
- Series A 298 (14%)
- Series B 229 (11%)
- Seed 227 (11%)
- Series C 155 (8%)
- Series D 97 (5%)
Country
- United States 530 (26%)
- India 39 (2%)
- Israel 27 (1%)
- United Kingdom 24 (1%)
- Singapore 15 (1%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Arsham Memarzadeh
Partner
|
Partner | Total investments: 20 | Find email | |
Galym Imanbayev
Partner
|
Partner | Total investments: 17 | Find email | |
James Ephrati
Partner
|
Partner | Total investments: 38 | Find email | |
Justin Overdorff
Partner
|
Partner | Total investments: 40 | Find email | |
Michael Mignano
Partner
|
Partner | Total investments: 44 | Find email | |
| See all 64 team members → | ||||
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Whatnot
|
Whatnot is a Los Angeles-based startup that creates a place where avid collectors could come together over shared interests. Whatnot is a marketplace to buy and sell authentic collectible items. Whatnot was founded in 2019, in California. | $545M / Series G / Aug 06, 2026 | |
|
Whatnot
|
Whatnot is a Los Angeles-based startup that creates a place where avid collectors could come together over shared interests. Whatnot is a marketplace to buy and sell authentic collectible items. Whatnot was founded in 2019, in California. | $545M / Series G / Aug 06, 2026 | |
|
Whatnot
|
Whatnot is a Los Angeles-based startup that creates a place where avid collectors could come together over shared interests. Whatnot is a marketplace to buy and sell authentic collectible items. Whatnot was founded in 2019, in California. | $545M / Series G / Aug 06, 2026 | |
Gravity
|
Gravity is an AI ad platform enabling AI apps to monetize conversations with contextual ads, targeting users through conversational intent. | $30.5M / Series A / Aug 06, 2026 | |
Oligo Security
|
Oligo is the industry's leading runtime security platform that solves today's toughest challenge: stopping attacks in real time in the AI era. Oligo transforms security from passive visibility to active protection across applications, cloud services, workloads, AI applications, and AI agents. By uncovering the deepest layers of whatactually runs in production, Oligo empowers customers to prioritize exploitable vulnerabilities, detect malicious behavior as it happens, and stop modern attacks in their tracks. | $60M / Series C / Aug 04, 2026 | |
Multiplier
|
Multiplier Holdings leverages artificial intelligence to scale high-impact professional services firms. Multiplier's innovative business model comprises acquiring professional services firms, such as specialist tax and accounting practices, and transforming them into more scalable, successful enterprises through the systematic integration ofspecific AI solutions. | $35M / Series B / Aug 04, 2026 | |
|
Multiplier
|
Multiplier Holdings leverages artificial intelligence to scale high-impact professional services firms. Multiplier's innovative business model comprises acquiring professional services firms, such as specialist tax and accounting practices, and transforming them into more scalable, successful enterprises through the systematic integration ofspecific AI solutions. | $35M / Series B / Aug 04, 2026 | |
|
Multiplier
|
Multiplier Holdings leverages artificial intelligence to scale high-impact professional services firms. Multiplier's innovative business model comprises acquiring professional services firms, such as specialist tax and accounting practices, and transforming them into more scalable, successful enterprises through the systematic integration ofspecific AI solutions. | $35M / Series B / Aug 04, 2026 | |
|
Multiplier
|
Multiplier Holdings leverages artificial intelligence to scale high-impact professional services firms. Multiplier's innovative business model comprises acquiring professional services firms, such as specialist tax and accounting practices, and transforming them into more scalable, successful enterprises through the systematic integration ofspecific AI solutions. | $35M / Series B / Aug 04, 2026 | |
Base Power
|
Base Power provides home battery systems, retail electricity services, and energy management solutions for residential customers. The company installs battery storage systems that provide backup power during outages and help manage electricity usage. Its platform combines distributed battery storage with electricity services to support home energymanagement and grid operations. | $1B / Series D / Aug 03, 2026 | |
| See all 2066 investments → | |||
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FAQ
What does Lightspeed Venture Partners invest in?
Lightspeed Venture Partners invests primarily in Software, Information Technology and Artificial Intelligence startups, most often at Series A and Series B stage. Most of the 2,066 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 Lightspeed Venture Partners's check size?
Lightspeed Venture Partners typically joins rounds of $2.5M–$30M at Seed, $7.5M–$90M at Series A and $15M–$125M 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 Lightspeed Venture Partners participates in.
How do I contact Lightspeed Venture Partners?
Public channels for Lightspeed Venture Partners 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.
Who are the partners at Lightspeed Venture Partners?
The team at Lightspeed Venture Partners includes Arsham Memarzadeh (Partner), Galym Imanbayev (Partner) and James Ephrati (Partner), among 64 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.
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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