Granahan Investment Management

What Granahan Investment Management does

Granahan Investment Management (GIM) is an employee-owned investment boutique founded in 1985 in Waltham, Massachusetts, specializing exclusively in small capitalization growth equity strategies. The firm manages approximately $2.5 billion in assets across seven core strategies spanning microcap, small cap, SMID cap, and midcap mandates (Small Cap Core Growth, Focused Growth, Small Cap Discoveries, SMID Select, Small Cap Select, Microcap Growth, and Future Pathways), with several strategies also offered through UCITS funds for international investors. Its investment process is built on bottom-up fundamental research and a proprietary LifeCycle classification framework (Pioneer, Core Growth, Special Situation) that categorizes every holding by its growth-driver profile to support diversification within a growth mandate.

The firm generates revenue through recurring asset management fees on separately managed accounts and pooled vehicles, with multi-manager sleeve construction (each portfolio manager is also an analyst with a sector specialization) as a structural feature. Distribution occurs through a direct institutional sales team led by a dedicated SVP of Sales and Business Development, complemented by a third-party distribution partnership with Daymer Bay Capital covering 10 European countries via the firm's Irish UCITS umbrella (Granahan Funds plc). GIM serves three target segments — institutional investors (endowments, pensions, foundations), family offices, and high net worth individuals — globally.

GIM is majority employee-held, with Kudu Investment Management holding a minority stake acquired in November 2021 to support growth and succession planning; the firm has received five consecutive "Best Places to Work in Money Management" awards from Pensions & Investments (2021-2025), is a PRI signatory, and operates an Article 8 SFDR-compliant sustainability product alongside its mainstream lineup. The co-founder and CEO Jane White continues to lead the firm alongside a CIO, COO, and senior portfolio managers averaging 25 years of industry experience.

Name

Granahan Investment Management

Legal name

Granahan Investment Management, Inc.

Website

https://granahan.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

Granahan Investment Management is a Waltham, MA-based employee-owned investment boutique, founded in 1985, managing approximately $2.5 billion in small cap and microcap growth equity strategies for institutional investors, family offices, and high net worth individuals globally.

Ownership category

akta.pro rank

Product category

Small Cap Growth Equity Management

NAICS

Portfolio Management and Investment Advice (523940), Portfolio Management and Investment Advice (52394), Open-End Investment Funds (525910), Open-End Investment Funds (52591)

SIC

Investment Advice (6282)

akta.pro primary industry

Small-Cap Equity (Active) (FSAAAIAC)

akta.pro secondary industries

Style Equity — Growth (Active) (FSAAAIAI), Mid-Cap Equity (Active) (FSAAAIAB)

Keywords

• Small cap growth equity
• Investment management services
• Separately managed accounts
• Institutional asset management
• UCITS fund management

Headquarters

HQ city

Waltham

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Supply Chain

Revenue model

1. Asset Management Fees: GIM generates revenue through management fees charged on assets under management across its various small cap, mid cap, and SMID cap strategies. The firm manages approximately $2.5 billion in assets as of late 2025, serving institutional investors, family offices, and high net worth individuals worldwide.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels6 records

Core offering

Granahan Investment Management is a boutique investment manager that provides actively managed small-cap growth equity strategies to institutional investors, family offices, and high net worth individuals. The firm runs seven distinct strategies spanning microcap, small cap, SMID, and mid-cap growth mandates, with selected strategies also offered as UCITS funds via Granahan Funds plc. Portfolio construction is driven by bottom-up fundamental research and a proprietary LifeCycle classification framework that categorizes holdings as Pioneer, Core Growth, or Special Situation companies.

Product overview

Granahan Investment Management is a small-cap equity investment boutique offering a portfolio of distinct investment strategies. The firm's product suite consists of seven core strategies: Small Cap Core Growth (flagship diversified sleeve-managed portfolio), Focused Growth (concentrated sustainable growth), Small Cap Discoveries (micro-to-small cap emerging growth), SMID Select (high conviction SMID cap), Small Cap Select (high conviction small cap), Microcap Growth (early stage companies under $750M market cap), and Future Pathways (sustainability-focused small-to-mid cap). Several strategies are also available as UCITS funds for international investors, including Focused Growth, SMID Select, Small Cap Discoveries, and an Article 8 SFDR-compliant sustainability fund.

Differentiator

Problem solved

Functional benefit

Brands

• Granahan Funds plc: Irish UCITS umbrella fund vehicle for the company's investment strategies offered to international investors

Products and services

• Small Cap Core Growth Flagship broadly diversified sleeve-managed portfolio of small cap growth equity holdings specifically structured for large institutional mandates, diversified by portfolio manager, sector, and LifeCycle category (Pioneer, Core Growth, Special Situation). Targeted at institutional investors requiring scalable small cap growth exposure.
• Focused Growth Concentrated small cap growth portfolio emphasizing well-positioned companies with characteristics to sustain greater than 15% growth for the next five to seven years, with consistent overweight in the information technology sector. Available as a UCITS fund for non-U.S. investors.
• Small Cap Discoveries Micro-to-small cap portfolio with emphasis on emerging growth and unrecognized growth companies, with a heavy footprint in biotech/medical-tech industries balanced by industrial and materials exposure. Available as a UCITS fund for international investors.
• SMID Select High conviction small/mid (SMID) cap growth portfolio of stocks offering a compelling combination of exceptional long-term growth or material fundamental business improvement. Available as a UCITS fund for international investors.
• Small Cap Select High conviction small cap growth portfolio representing compelling combinations of long-term growth opportunities or companies undergoing material fundamental business improvement. Available as a separately managed account.
• Microcap Growth Concentrated portfolio of early-stage, innovative microcap companies with outsized potential for enterprise growth, diversified across LifeCycle categories with strong healthcare sector exposure, focused on companies with market caps under $750 million. Oversees portion managed by Jeffrey A. Harrison.
• Future Pathways Small-to-mid cap growth portfolio prioritizing U.S. companies whose products and services make a social or environmental difference by aiding individuals, companies, and governments in meeting their sustainability goals. Foundation of the firm's April 2023 Article 8 UCITS fund launch.
• Granahan Focused Growth UCITS Fund Article 8 UCITS fund under the Sustainable Finance Disclosure Regulation that invests in U.S. growth companies whose products and services help others meet ESG and sustainability goals. Distributed via Daymer Bay Capital to investors across the UK, Netherlands, Belgium, Guernsey, Jersey, Switzerland, Denmark, Norway, Sweden, and Finland; launched with $10 million in initial assets from a UK-based anchor investor in April 2023.

Quantifiable outcome

• Four distinct strategies ranked in top 10 for 5-year period ending 12/31/2020 in Small Cap Growth Equity category
• +1 more outcomes

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature1 record

Partnerships

Two partnerships are on record, tiered core and supporting.

• Daymer Bay CapitalcoreChannel Partner/ Reseller/ Distributor · 17 April 2023Daymer Bay Capital distributes and markets GIM's UCITS funds to investors in UK, Netherlands, Belgium, Guernsey, Jersey, Switzerland, Denmark, Norway, Sweden and Finland. GIM launched its first Article 8 UCITS fund through this partnership with $10 million in assets from a UK-based anchor investor.
• EsgaiasupportingTechnology or Integration · 1 January 2023GIM partnered with Esgaia, a Swedish software company, to implement their engagement tracking platform for investment stewardship practices. The platform supports recording, monitoring, and coordination of engagement activities across the organization.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Champlain Investment Partners: Burlington, VT-based boutique focused exclusively on small and SMID cap equity investing using a bottom-up fundamental approach with concentrated, conviction-weighted portfolios — closely comparable product mix and client base to Granahan.
• Polen Capital: Employee-owned boutique with a flagship Focused Growth strategy investing in high-quality secular growth companies — direct overlap with Granahan's Focused Growth product and similar employee-ownership culture.
• Wasatch Advisors: Employee-owned small cap specialist offering multiple small/micro cap growth strategies to institutional and retail clients, with strong performance track record — directly comparable niche specialist competitor.
• Riverbridge Partners: Minneapolis-based boutique specializing in small cap and SMID cap growth investing for institutional clients; comparable in size, philosophy (bottom-up fundamental), and client segmentation to Granahan.
• Weatherbie Capital: Boston-based boutique focused exclusively on small and SMID cap growth equity investing — comparable size, geography, and investment philosophy, and notably the prior employer of Granahan's recently hired PM Ed Minn.
• LMCG Investments: Boston-based small/mid cap growth equity boutique founded by former Granahan PM Andrew Beja; direct competitor for institutional small cap mandates with overlapping geography and product mix.

Broad incumbents

• Fred Alger Management: Long-established growth equity manager offering small cap, mid cap, and large cap growth strategies with a much broader product platform; directly competes in the small cap growth category but operates at significantly greater scale.
• Loomis Sayles: Large multi-affiliate manager with established small/mid cap growth equity strategies; competes head-to-head with Granahan in institutional small cap mandates but offers a much broader fixed income and equity product suite.
• Calamos Asset Management: Publicly traded asset manager with US small/mid cap growth strategies alongside convertible and multi-asset products — overlaps with Granahan in US small cap growth while operating as a much larger, diversified platform.
• Wellington Management: Global investment manager with substantial small cap and SMID cap growth capabilities serving institutional clients; competes with Granahan for large institutional mandates but as part of a $1T+ multi-asset platform.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/granahan-investment-management-inc.

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

Investors1 record

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 Granahan Investment Management