What RainMaker Securities does

Rainmaker Securities, LLC is a FINRA-registered broker-dealer and SIPC member founded in 2010 by Glen Anderson, headquartered in Miami, Florida. The firm specializes in facilitating secondary market transactions in shares of late-stage, pre-IPO private companies, connecting sellers (typically employees, early investors, and venture funds seeking liquidity) with buyers (institutional investors, family offices, accredited high-net-worth individuals, and VC firms). Rainmaker operates a network of 60+ registered representatives across the United States and supports transactions in approximately 1,000 stocks, with deal sizes ranging from $50,000 SPV participations to $25+ million direct purchases. Underlying transactions are structured as direct transfers, SPV/fund vehicles, or hypothecation arrangements.

Rainmaker's technology stack centers on the RainmakerX platform, launched in 2023 and expanded in 2024, which functions as an end-to-end self-service research and trading portal providing qualified investors access to a global order book, portfolio management, and trading activity monitoring. In March 2026, the firm launched the Rainmaker 20 Index, a proprietary benchmark tracking secondary market pricing trends across 20 highly liquid late-stage private companies, powered by aggregated data from core partner PM Insights. The firm also offers capital raising services and M&A advisory through its senior investment banking team.

Rainmaker monetizes exclusively through transaction-based success fees, typically calculated as a percentage (commonly 2-5%) of consideration paid from buyer to seller in closed transactions. Fees may be paid in cash or warrants, and the firm carries no payment obligation on transactions that do not close. The customer base is distributed across institutional investors, family offices, accredited HNW individuals, and venture capital firms globally, with operating geographies spanning North America, Europe, Asia, and the Middle East.

Name

RainMaker Securities

Legal name

Rainmaker Securities, LLC

Website

https://rainmakersecurities.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

Rainmaker Securities is a FINRA-registered broker-dealer that facilitates secondary market transactions in late-stage pre-IPO private companies, serving institutional investors, family offices, venture capital firms, and accredited individuals through a network of 60+ registered representatives and the RainmakerX trading platform.

Ownership category

akta.pro rank

Product category

Private Securities Broker-Dealer / Late-Stage Secondary Markets

NAICS

Securities and Commodity Contracts Intermediation and Brokerage (5231)

SIC

Security Brokers, Dealers & Flotation Companies (6211)

akta.pro primary industry

Liquidity Provisioning & Principal Trading (Bank/Dealer) (FSACANAI)

akta.pro secondary industries

Management Buyouts (MBO/MBI) & Sponsor-Led Transactions Advisory (FSAEAGAI), Capital Markets Advisory (IPO Readiness, SPAC, ECM/DCM Advisory) (BPAHAOAL)

Keywords

• Private securities brokerage
• Secondary market trading
• Pre-IPO investing
• Late-stage private equity
• Broker-dealer services

Headquarters

HQ city

Miami

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Success Fees on Securities Transactions: RMS is engaged by clients to make referrals to buyers or sellers of private securities. If a client closes a securities transaction with a buyer or seller referred by RMS, RMS is entitled to a success fee. The success fee is typically calculated as a percentage of the consideration paid from the buyer to the seller in the transaction. Success fees may be paid in cash or in warrants to purchase securities of the client or client's affiliate.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

RainMaker Securities is a FINRA-registered broker-dealer that facilitates secondary-market transactions in shares of late-stage private companies. It connects institutional investors, family offices, venture capital firms, and accredited high-net-worth individuals through its global network of 60+ registered representatives and the RainmakerX online platform, and also provides capital-raising and M&A advisory services to private issuers. RMS earns success fees as a percentage of consideration paid from buyer to seller on each closed transaction.

Differentiator

Problem solved

Functional benefit

Brands

• RainmakerX: An online platform designed to connect buyers and sellers of private market securities. It serves as a self-service research and trading portal providing access to Rainmaker's order book, portfolio management, trading activity monitoring, and advanced research capabilities.

Products and services

• Late-Stage Secondary Market Brokerage Brokerage service facilitating private securities transactions in shares of late-stage private companies for institutional investors, family offices, venture capital firms, and accredited high-net-worth individuals through RainMaker's global network of 60+ registered representatives. Transactions are facilitated through direct transfers, SPVs, and hypothecation structures across approximately 1,000 private-company stocks.
• Capital Raising Services Private placement capital-raising services for private companies seeking funding, providing access to RainMaker's network of family offices, venture capital firms, RIAs, broker-dealers, pension funds, and ultra-high-net-worth individuals across North America, Europe, and Asia. Senior investment bankers provide offering preparation alongside distribution.
• M&A Advisory Advisory services for private companies pursuing an exit through change of control, merger, or acquisition, drawing on the senior investment banking team's sector relationships and global investor network.
• RainmakerX Online Trading Platform Self-service research and trading portal that connects buyers and sellers of private market securities, providing qualified investors global order-book visibility, direct order placement, centralized client and partner management, advanced research capabilities, and integrated compliance infrastructure. Designed for both individual qualified investors and RainMaker's network of independent brokers.
• Rainmaker 20 Index Proprietary benchmark tracking secondary market pricing trends across 20 highly liquid late-stage private companies, providing a consistent reference point for observing relative pricing and broader trends in private markets. Inputs are sourced through the PM Insights aggregated-data platform, and quarterly reports are published.

Quantifiable outcome

• Private securities market growth of 400% since 2018 with platform-facilitated volume reaching $15+ billion annually
• +2 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• PM InsightscoreTechnology or Integration · 8 May 2024PM Insights (PMI) platform provides aggregated secondary market data including order submissions and completed transaction information contributed by participating market participants. Used to power the Rainmaker 20 Index pricing inputs and generate composite pricing estimates for the proprietary benchmark.

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Nasdaq Private Market (NPM): Nasdaq-affiliated platform facilitating secondary trading and IPO share management for private companies; directly competes with RainmakerX on private securities transactions and advisory services for issuers and shareholders.
• SharesPost: Online secondary marketplace for private company shares offering direct investments and managed funds; competes head-to-head with Rainmaker on buyer/seller matching and brokerage services for late-stage pre-IPO equity.
• EquityZen: Pre-IPO investment platform enabling accredited investors to buy shares in late-stage private companies via SPVs and direct purchases; nearly identical business model in deal sizes and customer segments to Rainmaker.
• 440 Brokerage Services: FINRA-registered broker-dealer specializing in private securities transactions with focus on secondary market and SPV deal flow; comparable niche player to Rainmaker's broker-dealer operations.
• Hiive: Private stock marketplace connecting buyers and sellers of late-stage company shares with structured listings; similar narrow focus on secondary share transfers and accredited investor flow.
• Carta (including former Forge): Carta acquired Forge to form the largest private market secondary platform offering trading, tender offers, and fund vehicles; directly competes with Rainmaker's secondary brokerage and SPV structuring for shares in late-stage private companies.

Broad incumbents

• Jefferies & Co: Diversified investment bank with secondary trading desk handling private and public securities; represents established incumbent positioning against which Rainmaker competes for mid-size private placement and secondary transactions.
• Goldman Sachs Private Shares: Private securities trading platform from a bulge-bracket bank offering secondary access to pre-IPO shares; competes in the same institutional investor buyer segment that Rainmaker targets.
• Oppenheimer & Co: Full-service investment bank where Rainmaker's CEO previously held senior roles; broader institutional brokerage and advisory franchise that overlaps with Rainmaker's capital raising and M&A advisory services.

Emerging players

• Source Capital: Early-stage platform facilitating private securities transactions and capital introductions; narrower scale than Rainmaker but overlapping technology-enabled secondary brokerage model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/Rainmaker-Securities-LLC-112048953792578
• LinkedInlinkedin.com/company/rainmaker-securities

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about RainMaker Securities