Mainstreet Investment

Live X is a digital transformation and brand development company that provides media services.

Weclassic is a music company that teaches classic music to students.

Caring is a visiting medical treatment facility that offers medical consultation.

Fanddle is a mobile-based online fandom platform founded in 2019 that connects global fans and celebrities and provides an e-commerce-based gift mediation service for those who find it difficult to get closer to celebrities. By using our service, fans are able to send gifts along with private messages without any international shipping costs through the app. We believe all fans deserve to be able to express their support and love for celebrities through various methods, such as sending gifts, messages, and donations for charitable causes. The company was founded in December 2018 by Si-ha Park and is currently headquartered in Seoul, South Korea.

ZenLedger, Inc. is a software company based in Bellevue, Washington, that specializes in cryptocurrency tax management solutions. Founded in 2017, it offers a comprehensive platform designed for cryptocurrency investors and tax professionals, enabling them to import transactions, calculate gains and income, and prepare tax returns with ease. ZenLedger's software generates essential documents such as profit and loss statements, capital gains reports, and income reports, facilitating efficient portfolio management and compliance with tax regulations. By automating the tax preparation process, ZenLedger aims to alleviate the complexities and manual efforts typically associated with cryptocurrency taxation, thereby enhancing the user experience for both individual investors and professionals in the financial sector.

Ninjacart is an online business-to-business platform that connects farmers, manufacturers, and brands directly to retailers, streamlining the fresh produce supply chain in India. Founded in July 2015 and headquartered in Bengaluru, the company enables the distribution of fruits and vegetables to retailers and restaurants through a lean and efficient supply chain. By leveraging data science and infrastructure, Ninjacart allows businesses to source fresh farm produce directly from farmers, facilitating quicker and more cost-effective transactions. The platform also enables retailers to communicate with local managers to address specific store needs, thereby enhancing the overall efficiency of the agricultural marketing process.

Paynstore is a payment infrastructure company that specializes in mobile app and application services. It provides payment relay services specifically designed for QR payments at offline affiliated stores. By offering payment options such as QR codes and NFC technology, Paynstore enables customers to make seamless contactless payments. The company's focus on enhancing payment solutions positions it as a key player in the evolving landscape of digital transactions.

WatchBox is a prominent global platform specializing in the buying, selling, and trading of luxury pre-owned timepieces. Headquartered in Miami, Florida, the company offers an expertly curated selection of watches from esteemed brands such as Rolex, Audemars Piguet, and Patek Philippe. WatchBox emphasizes authenticity and quality, ensuring that each watch undergoes a rigorous authentication process by in-house experts prior to sale, providing customers with confidence in their purchases. The company combines a sophisticated e-commerce platform with personalized concierge services, where dedicated Client Advisors assist clients with watch selections, valuations, and trading. Additionally, WatchBox offers a One-Year Limited Warranty on all purchases and ensures secure, insured expedited shipping. Committed to education and transparency, WatchBox provides a wealth of resources, including video content and market insights, empowering customers to make informed decisions. With a knowledgeable team of passionate watch enthusiasts, WatchBox has solidified its reputation as a trusted name in the luxury pre-owned watch market, catering to collectors and first-time buyers alike.

Blind is an anonymous professional network designed to facilitate open communication among verified professionals across various industries. With over 4.1 million users worldwide, the platform enables individuals to engage in private company channels with colleagues and participate in open forums for broader discussions. Users can share valuable insights, such as job offer details and honest feedback about company culture, without fear of judgment or retribution. Blind aims to promote transparency in the workplace, empowering professionals to make informed decisions and encouraging meaningful change within their organizations.

Monolabs Co provides digital transformation, information technology, health subscription, and advisory services to the healthcare industry.

Greenlabs is an agri-tech company that develops a digital agricultural platform for farm management. Its platform provides a variety of features including analyses of the data to understand which environment is suitable for growing crops, and an environmental growth system to automatically adjust IoT devices on farms as well as provides other integrated information and services. It provides farmers with tools that can maximize production along with selling opportunities. The company was founded in 2017 and is based in Korea.