Providing software as a service (SAAS) services featuring software for managing securities for privately held companies through digitally-automated trading and compliance; providing software as a services (SAAS) services featuring software for trading multi-party tradable securities compliant with securities rules and company-defined rules for privately held companies; providing software as a service (SAAS) services featuring software for converting capitalization tables, securities definitions, company rules, and required disclosures to fully compliant peer-to-peer tradable equity securities; providing platform as a service (PAAS) featuring computer software platforms for tracking and controlling activities, information disclosures, shareholder communications, securities, and securities trading for a privately held company based upon by-laws and operating rules of the company; providing platform as a service (PAAS) featuring computer software platforms for monitoring, controlling, and trading shares of a privately held company based upon by-laws and operating rules of the company; providing platform as a service (PAAS) featuring computer software platforms for fractionalizing shares of a private company; providing on-line non-downloadable software for monitoring the status of securities for privately held companies; providing on-line non-downloadable software for initiating and settling controlled liquidity events for private securities; providing on-line non-downloadable software for accessing a secondary market for private equity through a blockchain-based virtual marketplace; providing on-line non-downloadable software for converting shares of stock in privately held companies into digital securities utilizing smart contracts; providing on-line non-downloadable software providing peer-to-peer trading services for blockchain-based investments in privately held companies; providing software as a service (SAAS) services featuring software for managing investments in privately held companies for investors and privately held companies; providing use of online non-downloadable web-based applications for managing investments in privately held companies for investors and privately held companies; providing use of online non-downloadable web-based applications for managing blockchain-based equity securities; providing platform as a service (PAAS) services featuring computer software platforms that enable the transfer of shares using currencies including cryptocurrencies; providing platform as a service (PAAS) services featuring computer software platforms for private equity investment management using blockchain and smart contracts