Nnamdi Okike
Co-Founder and Managing Partner @ 645 Ventures
New York, United States
Nnamdi Okike is a seed investor at 645 Ventures in New York focused on Software and SaaS. Nnamdi Okike is the Co-Founder and Managing Partner at 645 Ventures where he oversees the firm’s investment strategy.Nnamdi is a Board Member of the National Venture Capital Association, which unites the U.S. venture ecosystem to support the formation of high-growth companies. He serves alongside members from firms such as Benchmark Capital,Sequoia, a16z and Accel.Nnamdi also serves on the Boards of the New York Roadrunners, the Partnership Fund of New York City, and the Investment Committee of Phillips Andover Academy.Prior to that, he was a Principal at Insight Venture Partners.Nnamdi received his BA, JD, and MBA, all with honors from Harvard University.
- Total investments:
- 53
- Last investment:
- Lead investor:
- 42%
Last updated:
For AI agents: llms.txt
Industries Nnamdi Okike invests in
Stages Nnamdi Okike invests in
Countries Nnamdi Okike invests in
Round sizes
Round size
- Seed
- $700k–$7M
- Series A
- $7.5M–$60M
- Series B
- $6.7M–$100M
Investment Focus
Industry
- Software 16 (30%)
- SaaS 10 (19%)
- Information Technology 6 (11%)
- B2B 5 (9%)
- FinTech 5 (9%)
Stage
- Seed 22 (42%)
- Series A 16 (30%)
- Series B 8 (15%)
- Pre-Seed 2 (4%)
- Angel 1 (2%)
Country
- United States 34 (64%)
- United Kingdom 2 (4%)
- Brazil 1 (2%)
- Germany 1 (2%)
- Singapore 1 (2%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Rivo
|
Rivo is a consumer fintech that sits on top of users’ existing bank accounts and automates idle cash management. It links to checking, keeps a user-set safe balance, sweeps excess cash into higher-yield instruments, and moves funds back before bills hit. | $2.7M / Seed / Aug 04, 2026 | |
UPTIQ
|
Uptiq is a technology company that provides an AI-driven platform designed to support financial services firms with real-time analytics, risk assessment, and decision-making workflows. The company’s platform uses machine learning to process and interpret large volumes of financial data, identify trends, and generate actionable insights that helpteams evaluate credit risk, detect anomalies, and inform portfolio strategies. Its tools support integration with existing data systems and workflows, enabling users to automate data ingestion, modeling, and reporting across lending, investment, and compliance functions.Uptiq also offers customizable dashboards and APIs that help financial analysts, risk officers, and product teams operationalize insights and align them with business objectives. The company works with banks, fintechs, and financial institutions to tailor AI models and analytic frameworks to specific use cases such as credit scoring, customer lifetime value prediction, and loss forecasting. Its platform emphasizes scalable data processing and transparent model outputs to support informed decision-making in financial operations. | $25M / Series B / Feb 12, 2026 | |
Arbor
|
Arbor is an AI consultant that turns frontline conversations into intelligence-- through frontline employee feedback, customer research, and market research. | $6.3M / Seed / Feb 02, 2026 | |
Sequence
|
Sequence develops AI-powered revenue operations software that unifies configure, price, quote (CPQ), contract intake, billing, invoicing, accounts receivable, collections, and revenue recognition within a single platform. The software automates quote-to-cash workflows, manages customer contracts and subscription lifecycles, generates invoices,tracks payments, and supports financial reconciliation. The comapny integrates with CRM, ERP, accounting, payment, and business systems to synchronize commercial and financial data while providing reporting, workflow automation, approval processes, audit trails, and operational controls for finance and revenue teams. | $20M / Series A / Dec 16, 2025 | |
Clerq
|
Clerq is an online payment platform that provides account verification, payment processing, bookkeeping, compliance, and fraud prevention. | $12M / Series A / Oct 23, 2025 | |
Shift5
|
Shift5 is a cybersecurity company that provides hardware and software solutions to defend operational technology (OT) platforms, such as planes, satellites, ground combat vehicles, and large-scale mining and construction vehicles. | $75M / Series C / Sep 03, 2025 | |
Meridian
|
Meridian is an AI-based operating system for institutional private markets.Meridian blends next-generation deal software, vast databases, and intelligent agents into a single solution that allows investors to originate, assess, and execute with increased speed and precision. | $7M / Seed / Jun 20, 2025 | |
Circeus
|
Circeus is an AI-first technology holding company that acquires and scales mission-critical software, modernising it for the AI era. Through a centralised AI platform deployed across its portfolio, the company expands software from systems of record into systems of action. Circeus focuses on software powering the physical world, serving 200,000+companies worldwide and enabling them to work smarter, scale faster, and stay ahead. Circeus is backed by leading global institutional investors.Shop Circle is backed by leading global institutional investors. | $100M / Series B / Feb 25, 2025 | |
Cube Dev
|
Cube Dev is a computer software company that specializes in the fields of open source, analytics, databases, and developer tools. It provides a complete backend API platform over the raw data while giving the full customization and flexibility on the frontend. | $25M / Series B / Jun 06, 2024 | |
Momos
|
At Momos, we put restaurants at the forefront of everything we do. We are building Shopify for Restaurants; with our cloud-based marketing and analytics tools, restaurants are able to harness their data across all their online channels and use it to maximize their growth. As a result, Momos is modernizing the entire approach to Food and Beverage,and helping restaurants embrace the digital change. | $10M / Series A / Apr 19, 2024 | |
| See all 53 investments → | |||
Co-Investors
About 645 Ventures
645 Ventures is an early-stage venture capital firm that partners with exceptional founders who are building iconic companies. We invest at the Seed and Series A stages and leverage our Voyager software platform to enable our Success team and Connected Network to help founders scale to the growth stage. Select portfolio companies that have reachedthe growth stage include Iterable, Goldbelly, Resident, Eden Health, FiscalNote, and Squire.We invest in four main areas: SaaS for the Second Wave, Citizen Professionals, The Engineering Value Chain Revolution, and Personalized Consumer Applications. You can read more here: https://645ventures.com/themes/645 Ventures has $200m+ in AUM and is growing fast with backing from leading institutional investors, including university endowments, funds of funds, and pension funds. We have over 35 active companies in our portfolio in the areas of enterprise SaaS, infrastructure software, and consumer technology. Several of our portfolio companies have been acquired by Google, Facebook, Expedia, and private equity firms.
645 Ventures Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Alessio Fanelli
Principal, Investment & Research
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Blake Jennelle
CTO In Residence
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Guerin Schwarberg
Vice President
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Justin Fargione
Senior Full Stack Engineer
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Matt Hawes
Associate
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FAQ
What does Nnamdi Okike invest in?
Nnamdi Okike invests primarily in Software, SaaS and Information Technology startups, most often at Seed and Series A stage. Most of the 53 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 Nnamdi Okike's check size?
Nnamdi Okike typically joins rounds of $700k–$7M at Seed, $7.5M–$60M at Series A and $6.7M–$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 Nnamdi Okike participates in.
When did Nnamdi Okike last invest?
The most recent investment recorded for Nnamdi Okike closed in Aug 2026. Shizune tracks 53 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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