Marek Olszewski
Angel Investor
San Francisco, United States
Marek Olszewski is a seed investor in San Francisco focused on Cryptocurrency and Blockchain. Marek Olszewski is the President at Valora.
- Total investments:
- 13
- Last investment:
- Lead investor:
- 8%
Last updated:
For AI agents: llms.txt
Industries Marek Olszewski invests in
Stages Marek Olszewski invests in
Countries Marek Olszewski invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $150k–$7M
- Pre-Seed
- $400k–$700k
Investment Focus
Industry
- Cryptocurrency 7 (54%)
- Blockchain 5 (38%)
- Software 3 (23%)
- Financial Services 3 (23%)
- FinTech 2 (15%)
Stage
- Seed 7 (54%)
- Pre-Seed 5 (38%)
- Convertible Note 1 (8%)
Country
- United States 6 (46%)
- Canada 1 (8%)
- Nigeria 1 (8%)
- Portugal 1 (8%)
- Azerbaijan 1 (8%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Predicate network simplifies transaction prerequisites. | $7M / Seed / Oct 15, 2024 | ||
| Capsule Wallet is a crypto wallet infrastructure provider dedicated to helping developers create wallets with interoperable transactions. | Seed / Mar 15, 2023 | ||
| Simplified and Collaborative Treasury Management for DAOs | Pre-Seed / Mar 21, 2022 | ||
Numoen
|
Engineering a future for autonomous derivatives. | $1M / Seed / Mar 11, 2022 | |
| CyberBox is the first NFT Marketplace with ReFi integration on the Celo blockchain. Our vision is to build a marketplace to support every NFT collection and every ReFi project that looks to create impact with NFTs and build their communities around them and promote the value of sustainability and climate protection. | $150K / Seed / Mar 01, 2022 | ||
| ImpactMarket is an application-layer protocol that enables underprivileged people to access financial solutions. It uses Web3 to provide accessible financial solutions such as unconditional basic income, the crypto wallet Libera, and Learn and Earn, helping financially unserved and underserved people all over the world. It runs as a DAO on top ofthe Celo network, with $PACT serving as its governance token and running autonomously via smart contracts. Using blockchain technology to provide inclusive financial services and educational tools to the world's unserved and underserved. | $1.6M / Seed / Jan 26, 2022 | ||
| Paychant is a payment gateway that helps Africans on-ramp and off-ramp right inside any self-custodial wallets, DEX, or dApps using Africa's localized payment methods. Wallets or dApps looking to enter the African market can now take advantage of Paychant's ramp SDK to onboard and offboard users in Africa. | $400K / Pre-Seed / Dec 18, 2021 | ||
| Ari Swap offers a loyalty + rewards product that allows customers to earn loyalty rewards for their purchases and redeem rewards towards future purchases leveraging the existing $Ari token as the points systems. Targeting small- and medium-sized businesses, the Ari Swap platform also includes an NFT engine to create, send and redeem NFTs anddigital coupons, offers and promotions. | $700K / Pre-Seed / Dec 10, 2021 | ||
| Modern companies use Partna's API and B2B payment tools to smoothly launch and operate in Africa | $600K / Pre-Seed / Dec 01, 2021 | ||
| Send money, receive payments. Fast, free and seamless | $600K / Pre-Seed / Dec 01, 2021 | ||
| See all 13 investments → | |||
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FAQ
What does Marek Olszewski invest in?
Marek Olszewski invests primarily in Cryptocurrency, Blockchain and Software startups, most often at Seed and Pre-Seed stage. Most of the 13 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 Marek Olszewski's check size?
Marek Olszewski typically joins rounds of $150k–$7M at Seed and $400k–$700k at Pre-Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Marek Olszewski participates in.
How do I contact Marek Olszewski?
Public channels for Marek Olszewski 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 Marek Olszewski last invest?
The most recent investment recorded for Marek Olszewski closed in Oct 2024. Shizune tracks 13 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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