Parnassus Investments

What Parnassus Investments does

Parnassus Investments LLC is a San Francisco-based independent investment management firm founded in 1984 by Jerry Dodson, who continues to serve as founder, chairman, and CEO. The firm integrates environmental, social, and governance (ESG) evaluations with fundamental financial analysis to manage a diversified suite of equity mutual funds and ETFs spanning core, mid-cap, growth, value, and international strategies. Its product line includes the Parnassus Core Equity Fund (PRBLX), Mid Cap Fund, Growth Equity Fund (PFGEX), Value Equity Fund (PARWX), Mid Cap Growth Fund (PARNX), Value Select ETF (PRVS), Core Select ETF (PRCS), and International Equity Fund. The firm files Form 13F with the SEC as a registered institutional investment manager.

The firm serves three primary customer segments: retail investors seeking sustainable investment options, institutional investors including pension funds, endowments, and foundations seeking ESG-integrated strategies, and financial advisors/RIAs incorporating Parnassus funds into client portfolios. Distribution operates across three channels: NYSE-listed ETFs accessible through major brokerage platforms, mutual fund shares available through broker-dealers and direct purchase, and institutional separate accounts for large institutional mandates.

Parnassus's investment approach emphasizes quality-oriented selection, favoring companies with durable physical assets, strong competitive advantages, and long-term value creation potential. The firm conducts stewardship activities and materiality-focused ESG analysis as part of its portfolio construction process. With 11–50 employees and no disclosed parent company, Parnassus operates as a focused boutique asset manager, with its investment philosophy and product strategy anchored in sustainable and quality-oriented equity investing across multiple market capitalizations and geographies.

Name

Parnassus Investments

Legal name

Parnassus Investments LLC

Website

https://parnassus.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

Parnassus Investments is a San Francisco-based, founder-led investment management firm founded in 1984 that integrates ESG analysis with fundamental equity research to manage mutual funds and ETFs. It serves retail investors, institutional investors (pension funds, endowments, foundations), and financial advisors across core, mid-cap, growth, value, and international equity strategies.

Ownership category

akta.pro rank

Product category

Asset Management

NAICS

Portfolio Management and Investment Advice (523940), Open-End Investment Funds (525910), Securities, Commodity Contracts, and Other Financial Investments and Related Activities (523)

SIC

Investment Advice (6282), Finance Services (6199)

akta.pro primary industry

ESG/SRI/Impact Mutual Funds (FSAAAEAI)

akta.pro secondary industries

ESG Indexing & ESG ETFs (Rules-Based ESG Benchmarks and Passive Products) (FSAAALAE), ESG Integration / Responsible Investment Funds (Broad ESG) (FSANAJAL), ESG/Sustainable Investment Advisory (FSAEAAAJ)

Keywords

• Sustainable equity investing
• ESG mutual funds
• Investment management services
• Exchange-traded funds
• Responsible investing strategies

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Distribution channels3 records

Core offering

Parnassus Investments manages a diversified suite of mutual funds and ETFs that integrate comprehensive ESG evaluations with fundamental financial analysis. The funds emphasize quality companies with durable business models, competitive advantages, and long-term value creation, spanning core, growth, value, mid-cap, and international equity strategies.

Product overview

Parnassus Investments is an asset management firm offering a diversified suite of mutual funds and ETFs. The product lineup includes core equity funds (PRBLX), mid-cap funds, growth equity funds (PFGEX), value equity funds (PARWX), mid-cap growth funds (PARNX), value select ETFs (PRVS), core select ETFs (PRCS), and international equity funds. The funds emphasize quality investing with focus on competitive advantages, durable business models, and long-term value creation, with strategies spanning large-cap, mid-cap, growth, value, and international equities.

Differentiator

Problem solved

Functional benefit

Products and services

• Parnassus Core Equity Fund (PRBLX)

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Recent moves4 records

Expansion highlights4 records

Direct peers

• Calvert Research and Management: Calvert is one of the longest-standing ESG-integrated active asset managers in the U.S., offering mutual funds and separate accounts that integrate sustainability research with fundamental analysis, directly comparable to Parnassus's quality-and-ESG approach.
• Domini Impact Investments: Domini runs ESG-screened mutual funds focused on universal social and environmental standards, making it a direct peer in the U.S. sustainable mutual fund category alongside Parnassus.
• Boston Common Asset Management: Boston Common is a U.S. ESG-focused equity manager running mutual funds and separate accounts for institutional and individual investors, closely comparable to Parnassus's product mix and sustainability thesis.
• Trillium Asset Management: Trillium is an impact-focused equity manager offering mutual funds and SMAs that integrate ESG and shareholder advocacy, competing in the same U.S. sustainable active equity category as Parnassus.
• Green Century Funds: Green Century is an environmentally focused mutual fund sponsor offering equity and balanced funds with rigorous ESG screens, comparable to Parnassus's ESG-screened equity product suite.
• Brown Advisory: Brown Advisory is a mid-sized, independent U.S. active equity manager offering fundamental mutual funds and institutional separate accounts, including sustainable strategies, making it a close model peer in size, ownership, and channel mix.
• Ariel Investments: Ariel is a privately held, fundamental, quality-tilted U.S. equity manager running mutual funds and institutional accounts, directly comparable to Parnassus on size, independence, and active-equity approach.

Broad incumbents

• ClearBridge Investments: ClearBridge is a large, established active equity manager with value, growth, and sustainability strategies offered to retail and institutional clients, overlapping with Parnassus's style boxes at a much larger scale.
• Nuveen: Nuveen, the investment arm of TIAA, manages a broad set of equity, fixed income, and ESG strategies including large ESG-screened funds, competing with Parnassus for institutional and retail sustainable mandates.

Emerging players

• Eventide Asset Management: Eventide is a faith-based, values-aligned mutual fund sponsor integrating ESG and impact criteria into actively managed U.S. equity funds, comparable in size and product scope to Parnassus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/parnassus_funds

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Parnassus Investments