Granahan Investment Management LLC
SEC RegisteredSMALL CAP EXPERTS
About the firm
Granahan Investment Management (GIM) is an independent, 100% employee-owned investment boutique founded in 1985 by investment professionals with a passion for small capitalization growth equity investing. The firm exclusively addresses the small cap investment needs of institutional plan sponsors and family offices, with over $1.9 billion in assets under management across six distinct strategies covering US micro, small, and SMID-cap growth equities.
Firm Focus
Client segments reported on the firm's SEC Form ADV — applies to all advisors at the firm.
Areas of expertise
Services
Small cap growth equity investment management across six distinct strategies: Small Cap Discoveries (diversified micro-cap/emerging growth), Small Cap Focused Growth (concentrated secular growth), Small Cap Select (high conviction, broadly diversified across sectors), Small Cap Advantage (dual-managed/concentrated sleeves, diversified small cap growth), Small Cap Core Growth (multi-managed/high conviction sleeves, broadly diversified small cap growth), and SMID Select Opportunities (high conviction, broadly diversified across sectors).
Who they serve
Institutional plan sponsors and family offices, as well as institutional investors and wealthy individuals.
| Client segment | Clients | Assets managed |
|---|---|---|
| Individuals (Non-HNW) | 0 | $0 |
| High Net Worth Individuals | 43 | $84M |
| Investment Companies | 0 | — |
| Pooled Investment Vehicles | 0 | $0 |
| Pension/Profit Sharing Plans | 3 | $841M |
| Charitable Organizations | 2 | $59M |
| State/Municipal Entities | 9 | — |
| Insurance Companies | 0 | — |
| Sovereign Wealth Funds | 0 | — |
| Corporations | 0 | $0 |
1 total clients reported on Form ADV.
Leadership
Office locations
Regulatory & compliance
Data as of March 26, 2026 · Source: SEC IAPD & FINRA BrokerCheck
Contact Information
This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. Granahan Investment Management LLC has not reviewed, approved, or endorsed this profile and is not responsible for its accuracy. Regulatory records change over time — always verify the current record directly on the SEC or FINRA websites before making any decision.
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