Justin Overdorff
Partner @ Lightspeed Venture Partners
San Francisco, United States
Justin Overdorff is a seed investor at Lightspeed Venture Partners in San Francisco focused on Financial Services and FinTech. Justin is currently a Partner at Lightspeed Venture Partners
- Total investments:
- 40
- Last investment:
- Lead investor:
- 53%
Last updated:
For AI agents: llms.txt
Industries Justin Overdorff invests in
Stages Justin Overdorff invests in
Countries Justin Overdorff invests in
Contacts
| Type | Contact | Validation |
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| Personal email | ||
| Work phone | ||
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Investment Focus
Industry
- Financial Services 14 (35%)
- FinTech 13 (33%)
- Finance 8 (20%)
- Software 8 (20%)
- Artificial Intelligence 6 (15%)
Stage
- Seed 14 (35%)
- Series A 10 (25%)
- Series B 7 (18%)
- Series C 3 (8%)
- Series D 1 (3%)
Country
- United States 24 (60%)
- Brazil 1 (3%)
- Germany 1 (3%)
- Singapore 1 (3%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| 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 | ||
| Ramp is a financial technology company that develops software for corporate spend management, finance operations, and business payments. The company provides an integrated platform that combines corporate cards, expense management, accounts payable automation, procurement, travel booking, reimbursements, treasury services, and accountingautomation. Its software is designed to help organizations manage business spending, streamline financial workflows, and centralize finance operations within a single system. The platform enables businesses to issue and manage corporate cards, process vendor payments, track expenses, handle employee reimbursements, and automate accounting processes. It also incorporates artificial intelligence capabilities that assist with receipt matching, transaction categorization, policy enforcement, approval workflows, and financial reporting. These features are intended to reduce manual administrative work and improve visibility into organizational spending. | $750M / Series F / Jun 04, 2026 | ||
| Modus Audit is a technology-driven platform revolutionizing the industry by developing AI-powered tools and acquiring CPA firms to deliver audits in a fraction of the traditional time. By integrating intelligent workflows with specialized IT and security services, the company empowers accounting firms to achieve unprecedented efficiency andsecurity. | $85M / Series A / Apr 07, 2026 | ||
| Plug is a wholesale auction that facilitates online buying and selling of used EVs. | $20M / Series A / Feb 02, 2026 | ||
| Rain provides infrastructure for stablecoin-powered payments and financial products for businesses. The company builds APIs and tools that let partners create and manage digital wallets, embed stablecoin accounts, and issue payment cards that connect blockchain settlement with traditional payment networks like Visa. Its platform supports money-inand money-out flows, fiat-to-stablecoin conversion, and compliance features so enterprises and financial platforms can integrate digital money use cases directly into their products. Rain’s technology is modular, enabling firms to pick components such as card issuance, wallet services, and cross-border payouts based on their needs. | $250M / Series C / Jan 09, 2026 | ||
| Ramp is a financial technology company that develops software for corporate spend management, finance operations, and business payments. The company provides an integrated platform that combines corporate cards, expense management, accounts payable automation, procurement, travel booking, reimbursements, treasury services, and accountingautomation. Its software is designed to help organizations manage business spending, streamline financial workflows, and centralize finance operations within a single system. The platform enables businesses to issue and manage corporate cards, process vendor payments, track expenses, handle employee reimbursements, and automate accounting processes. It also incorporates artificial intelligence capabilities that assist with receipt matching, transaction categorization, policy enforcement, approval workflows, and financial reporting. These features are intended to reduce manual administrative work and improve visibility into organizational spending. | $300M / Nov 17, 2025 | ||
| Standard Economics is a fintech startup that creates a payments and USD-stablecoin platform to assist unbanked and underbanked people. | $9M / Seed / Oct 28, 2025 | ||
| DualEntry develops AI-based accounting software for handling transactions for mid-market enterprises. The product includes a unified general ledger, automation of repetitive workflows, multi-entity and multi-currency support, and integrations with many existing financial and operations-adjacent tools. DualEntry also offers what it calls “NextDayMigration,” which enables moving historical financial data from legacy accounting or ERP systems into its platform within ~24 hours, reducing implementation friction. | $90M / Series A / Oct 02, 2025 | ||
| Combining the best of CeFi & DeFi. | $30M / Seed / Sep 18, 2025 | ||
| Tabs provides AI-powered accounts receivable software to save time analyzing contracts, improve cash flow, and avoid billing errors. | $55M / Series B / Sep 16, 2025 | ||
| See all 40 investments → | |||
Co-Investors
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.
Lightspeed Venture Partners Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Arsham Memarzadeh
Partner
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Galym Imanbayev
Partner
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James Ephrati
Partner
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Justin Overdorff
Partner
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Michael Mignano
Partner
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FAQ
What does Justin Overdorff invest in?
Justin Overdorff invests primarily in Financial Services, FinTech and Finance startups, most often at Seed and Series A stage. Most of the 40 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 Justin Overdorff?
Public channels for Justin Overdorff 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 Justin Overdorff last invest?
The most recent investment recorded for Justin Overdorff closed in Aug 2026. Shizune tracks 40 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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