Mike Raitsyn

Built and sold several 8-figure marketplaces. Investor in 30+ startups. Always hunting the next big play.

📍 London, England, United Kingdom🔄 Updated September 2026💼 21 investments📅 12 years investing🗓 Last invested Jan 2026𝕏 @upgrade_to_unlock
Operator-angel🌍 United Kingdom20+ investmentsInvested this year
21
Total investments
10
Early stage
7
Mid stage
2
Late stage
12y
Years active

Portfolio

20 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
Jan 2026
Flamingo Compliance is the expert-built residency and tax compliance app trusted by global citizens, expats, HNWIs, citizens by investment (CBI), dual residents, immigrants, and frequent travelers. Developed in collaboration with international legal and tax advisors, Flamingo removes the guesswork from managing residency, visa, and travel day requirements across multiple jurisdictions. Whether you need to establish residency, avoid unintended tax obligations, or track permit and visa limits, Flamingo delivers accurate, reliable tools in one secure app. Key features include: AUTO TRIP RECORDING Automatically logs countries, US states, and select US cities visited, with precise day and night counts. TAX RESIDENCY & DOMICILE TRACKING Create custom trackers for achieving or avoiding residency, with alerts and warnings before thresholds are reached. PERMANENT RESIDENCY & VISA MANAGEMENT Track permits and long-term visas by setting multiple presence/absence rules, store documents, and get alerts and warnings about your status. US STATE & CITY COMPLIANCE Monitor physical presence for local state and city tax rules. SCHENGEN CALCULATOR Stay compliant with the 90/180-day rule, with real-time day counts and reentry date planning. VISA REQUIREMENTS IATA-synced visa and entry requirements for all passports and destinations, updated in real time. SECURE DOCUMENT STORAGE Keep passports, permits, and proof of travel safely on your device and iCloud. CUSTOMIZABLE REPORTS Export tracker data instantly for advisors, authorities, or personal records. COMPLETE PRIVACY With bank-level encryption and data stored only on your device and iCloud, Flamingo Compliance ensures complete privacy while keeping you compliant, informed, and in control — wherever you travel.
Investor
Jan 2026
Ai automation for financial admin. WellyBox helps 100,000+ businesses turn unstructured expense paperwork from any source into usable data at scale.
Investor
Nov 2024
Singit is revolutionizing English learning through the power of music and AI. Our platform transforms chart-topping songs into personalized, interactive English lessons that feel more like fun than study. With over 5 million songs and smart pedagogical design, we help learners of all ages build vocabulary, improve pronunciation, and master real-world English — whether at school or on their own. Already used by over millions of students in schools worldwide, Singit blends cultural relevance with proven language strategies to make learning stick. Want to bring Singit to your school, platform, or country? Let’s talk.🚀 https://linktr.ee/singit972
mid stageE-learning
Investor
Jan 2022
LegionFarm is a platform where you can hire PRO players for in-game coaching and companionship services in a variety of games loved by millions Funded by Y Combinator, Twitch co-founder, and dozens of VCs and Angels. The Legionfarm platform is used by gamers from 50+ countries around the world. We are a USA-based company, headquartered in San Francisco, with an operating team in Istanbul, Amsterdam and Singapore. We are a team of passionate, collaborative individuals who have joined LegionFarm to follow the mission of the company to create one million work places. Partnering primarily with LegionFarm’s Engineering, Design, and Data Science teams, we work together to build a unicorn. We are passionate about creating a more engaging and impactful way for people to improve their skills, elevate their performance, and unlock new career opportunities.
late stageComputer Games
Investor
Dec 2021
Aitomatic turns your industrial expertise into reliable, domain-expert AI agents (DXAs) to streamline operations and keep your company ahead. Led by Panasonic, Google, and Amazon veterans, with 100 years of combined Industrial-Al experience, our product combines the best of AI and industrial reliability. Were the team named FastCompany’s Top-10 Most Innovative, creator and maintainer of the open-source project OpenSSA.
Investor
Apr 2021
Setyl is a cloud-based IT management platform, which integrates into your existing IT landscape. The platform allows you to have full visibility and control over your IT assets, software applications, licenses, assigned users, admins, vendors and spend in one centralized register. Use Setyl to: ✓ Manage all your assets, licenses, usage and spend in one place. ✓ Streamline and scale your IT operations, including onboarding and offboarding workflows. ✓ Eliminate wasted IT spend. ✓ Safeguard against compliance and audit risks, including ISO 27001, SOC 2, GDPR, etc. The user-friendly interface requires little to no learning curve, making it easy to use and to collaborate with people across your organization.
Investor
Feb 2021
Turing is one of the world’s fastest-growing AI companies accelerating the advancement and deployment of powerful AI systems. Turing helps customers in two ways: Working with the world’s leading AI labs to advance frontier model capabilities in thinking, reasoning, coding, agentic behavior, multimodality, multilinguality, STEM and frontier knowledge; and leveraging that work to build real-world AI systems that solve mission-critical priorities for companies. Powering this growth is Turing’s talent cloud—an AI-vetted pool of 4M+ software engineers, data scientists, and STEM experts who can train models and build AI applications. All of this is orchestrated by ALAN—our AI-powered platform for matching and managing talent, and generating high-quality human and synthetic data to improve model performance. ALAN also accelerates workflows for model and agent evals, supervised fine-tuning, reinforcement learning, reinforcement learning with human feedback, preference-pair generation, benchmarking, data capture for pre-training, post-training, and building AI applications. Turing—based in San Francisco, California—was named #1 on The Information’s annual list of “Top 50 Most Promising B2B Companies,” and has been profiled by Fast Company, TechCrunch, Reuters, Semafor, VentureBeat, Entrepreneur, CNBC, Forbes, and many others. Turing’s leadership team includes AI technologists from Meta, Google, Microsoft, Apple, Amazon, X, Stanford, Caltech, and MIT.
Investor
Nov 2020
Mission: Fueling SaaS growth with transparent revenue-based financing.
Investor
Sep 2020
Telega.io Ad Exchange connects owners of different Telegram channels and advertisers who want to reach new customers or subscribers from the messenger. • Catalog of Telegram channels with an active audience 🔥 The best catalog of Telegram channels with discounts of 25% and up • No risks—the service guarantees order fulfillment • Convenient payment: Bank Transfer, PayPal, Visa/MasterCard • Integrated solutions for corporate clients and advertising agencies • Free channel analytics and detailed reporting • Profitable affiliate program
Investor
Jun 2019
ContentCal is now part of Adobe Express, available on mobile, web, and desktop. Start for free today.
Investor
May 2019
Insense is the all-in-one solution for scaling UGC production and influencer marketing; offering both a creator marketing platform and fully managed services if short on time. The platform streamlines operations with features like creator chat, interactive briefs, automated payments and contracts, analytical reporting, and integrations with Meta, TikTok and Shopify. 2,000+ brands and agencies use Insense to find their perfect niche creators and run diverse collaborations from UGC and product seeding to TikTok Shop and whitelisted ads. Their carefully vetted marketplace has 60,000+ UGC creators and micro-influencers from North America and 20+ countries across EMEA, APAC, and Latin America.
Investor, IR
Jul 2018
Aggregion allows companies to collaborate on data without sharing or disclosing the data. Using the platform companies foster their partnership development and get benefits of the so-called growing networked economy, such as: - New clients and upselling opportunities - Personalized closed-loop marketing - Cookieless communication - Customer insights and analytics - Data monetization and others The platform leverages blockchain and confidential computing technologies that bring trust and security to the collaboration. It has been developed in close cooperation with Intel and Microsoft. The company is proud to be Microsoft Partner of the Year 2020. Aggregion is trusted by the largest banks, telecom companies and retailers with a total customer audience on the platform exceeding 100M customers. Key products and use cases are Cleanrooms, Retail media platforms, Data collaboration platforms for ecosystems, Customer360 analytics. Aggregion is a US-based company, in operation since 2015. We are a strong and ambitious player in the confidential computing market that is projected to grow 30 times to $50B by 2026 (Everest).
Investor
Mar 2017
Deep Social is a freemium influencer ranking, discovery and AI-driven analytics platform. Providing its 24,239 customers with in-depth insights into demographic & psychographic data of 47,722,998 influencers and their audience. We honor users'​ privacy and security, we provide only aggregated anonymized data. Deep Social is also GDPR compliant and protects the personal data and privacy of EU citizens for transactions that occur within EU member states. Audience data is based on previously collected historical data and deep learning methods that allows the Deep Social team to create a time series forecasting model that accurately forecasts audience insights into the future with acceptable level of error (the model was built using data from 2017 to predict future values from January, 2018 to March, 2018 with comparison to actually observed values for the same period of time). Our clients include Fortune Global 500 companies including Walmart, Samsung, Amazon, Softbank, Lowe's, Disney, Unilever, Huawei, Heineken, American Express, fashion brands including H&M, Furla, Reebok, beauty brands including L’Oreal, Revlon, Clarins, travel brands including Hilton, Marriott, Four Seasons, online brands including Pandora, Booking.com, music brands including Universal Music, Sony Music, Warner Music, media companies including Viacom Media Networks, Axel Springer, Hubert Burda Media and advertising and communication companies including GroupM, Omnicom Media Group, Ogilvy, Edelman, just to name a few companies among our 24,239 clients. We also work with such well-known research companies as Nielsen, researches from Stanford University, Harvard University and Berkeley University. Check audience insights for your friends and favorite influencers and find out if they have ranked in top 100 in different categories by entering their @handle at https://ranking.deep.social/. It’s absolutely free and takes less than a minute!
Investor
Mar 2017
Improvado automates marketing reporting, enables informed budget decisions, and increases the ROI of marketing efforts. We help marketing teams streamline inefficient spreadsheet analytics and achieve deep insights into revenue generation. Improvado connects data across 500+ marketing and sales platforms to build a holistic picture of marketing performance. As an end-to-end analytics platform, Improvado handles everything, from data extraction and normalization to visualizing data in insightful dashboards. With Improvado, it’s easy to track the performance of your cross-channel efforts, calculate complex metrics such as CLV or CAC, attribute revenue to touchpoints, and recreate customer journeys. Want to learn more? Schedule a demo at www.improvado.io.
Investor
2017
Spin.AI is a leading SaaS security company dedicated to protecting mission-critical SaaS applications data, including Google Workspace, Microsoft 365, Salesforce, and Slack. Our flagship platform, SpinOne, leverages advanced AI and ML to deliver comprehensive solutions in SSPM, DSPM, risk assessment, backup, archiving, and ransomware protection. Since our founding in 2017, we’ve empowered over 1,500 organizations worldwide to reduce security costs, streamline operations, and ensure compliance. Our solutions are recommended by Google for SaaS data protection and integrated into Chrome Enterprise Security. Recognized as a Strong Performer in SSPM by Forrester, we’ve also earned accolades from industry leaders like Gartner, GigaOm, and Frost & Sullivan for our innovation and excellence.
Show all 20 investments ↓
Experience · 24 entries
All (24)
Investments (21)
Founder (3)
2026
Investor
Jan 2026
Flamingo Compliance is the expert-built residency and tax compliance app trusted by global citizens, expats, HNWIs, citizens by investment (CBI), dual residents, immigrants, and frequent travelers. Developed in collaboration with international legal and tax advisors, Flamingo removes the guesswork from managing residency, visa, and travel day requirements across multiple jurisdictions. Whether you need to establish residency, avoid unintended tax obligations, or track permit and visa limits, Flamingo delivers accurate, reliable tools in one secure app. Key features include: AUTO TRIP RECORDING Automatically logs countries, US states, and select US cities visited, with precise day and night counts. TAX RESIDENCY & DOMICILE TRACKING Create custom trackers for achieving or avoiding residency, with alerts and warnings before thresholds are reached. PERMANENT RESIDENCY & VISA MANAGEMENT Track permits and long-term visas by setting multiple presence/absence rules, store documents, and get alerts and warnings about your status. US STATE & CITY COMPLIANCE Monitor physical presence for local state and city tax rules. SCHENGEN CALCULATOR Stay compliant with the 90/180-day rule, with real-time day counts and reentry date planning. VISA REQUIREMENTS IATA-synced visa and entry requirements for all passports and destinations, updated in real time. SECURE DOCUMENT STORAGE Keep passports, permits, and proof of travel safely on your device and iCloud. CUSTOMIZABLE REPORTS Export tracker data instantly for advisors, authorities, or personal records. COMPLETE PRIVACY With bank-level encryption and data stored only on your device and iCloud, Flamingo Compliance ensures complete privacy while keeping you compliant, informed, and in control — wherever you travel.
Investor
Jan 2026
Ai automation for financial admin. WellyBox helps 100,000+ businesses turn unstructured expense paperwork from any source into usable data at scale.
2024
Investor
Nov 2024
Singit is revolutionizing English learning through the power of music and AI. Our platform transforms chart-topping songs into personalized, interactive English lessons that feel more like fun than study. With over 5 million songs and smart pedagogical design, we help learners of all ages build vocabulary, improve pronunciation, and master real-world English — whether at school or on their own. Already used by over millions of students in schools worldwide, Singit blends cultural relevance with proven language strategies to make learning stick. Want to bring Singit to your school, platform, or country? Let’s talk.🚀 https://linktr.ee/singit972
mid stageE-learning
2022
Investor
Jan 2022
LegionFarm is a platform where you can hire PRO players for in-game coaching and companionship services in a variety of games loved by millions Funded by Y Combinator, Twitch co-founder, and dozens of VCs and Angels. The Legionfarm platform is used by gamers from 50+ countries around the world. We are a USA-based company, headquartered in San Francisco, with an operating team in Istanbul, Amsterdam and Singapore. We are a team of passionate, collaborative individuals who have joined LegionFarm to follow the mission of the company to create one million work places. Partnering primarily with LegionFarm’s Engineering, Design, and Data Science teams, we work together to build a unicorn. We are passionate about creating a more engaging and impactful way for people to improve their skills, elevate their performance, and unlock new career opportunities.
late stageComputer Games
2021
Investor
Dec 2021
Aitomatic turns your industrial expertise into reliable, domain-expert AI agents (DXAs) to streamline operations and keep your company ahead. Led by Panasonic, Google, and Amazon veterans, with 100 years of combined Industrial-Al experience, our product combines the best of AI and industrial reliability. Were the team named FastCompany’s Top-10 Most Innovative, creator and maintainer of the open-source project OpenSSA.
Show all 24 entries ↓
Investment activity
2014–2026 · 21 investments
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