CastleArk

What CastleArk does

CastleArk Management, LLC is a Chicago-based, 100% employee-owned registered investment adviser founded in 1999 by Jerome Castellini. The firm runs six distinct growth-oriented investment strategies: U.S. Large Cap Growth (20-30 concentrated holdings in dominant franchises), U.S. Small Company Growth and U.S. SMID Growth (each 85-110 holdings targeting positive inflection points), International Equity and International Small Cap Equity (each 65-85 global growth stocks), Master Limited Partnerships (25-35 midstream holdings) and Global Energy (upstream, oilfield services, and infrastructure). Underlying investment processes combine bottom-up fundamental research with quantitative and risk management tooling, including a proprietary economic factor model that evaluates exposures to macroeconomic variables such as inflation, optimism, and economic growth. The firm operates a "boutique of boutiques" structure with distinct investment teams and collaborative research, while leveraging shared risk and operational infrastructure including senior quantitative research analysts and a dedicated head of trading.

CastleArk distributes its strategies through separately managed accounts, collective trust vehicles, and WRAP accounts, with fees individually negotiated rather than publicly disclosed. Customer segments are explicitly institutional investors (pensions, endowments, foundations accessed via investment consultants) and high-net-worth individuals served via SMAs, WRAP, and Collective Trust channels. The firm is headquartered at 1 N. Wacker Drive, Chicago, employs 11-50 professionals, and is registered with the SEC under the Investment Advisers Act of 1940. No public AUM or revenue figures are disclosed; no external private equity, strategic, or institutional ownership exists. The principal commercial moats are the employee-owned alignment model, the multi-decade tenure and cross-cycle experience of the portfolio management team, and the proprietary economic factor risk framework.

The firm's strategic posture emphasizes organic platform extension (adding new strategies such as International Small Cap in 2016 and recruiting senior portfolio managers and distribution leaders) over inorganic growth. Recent hires include Co-CIO Dan Becker (2020, ex-Waddell & Reed, 28 years), Head of Trading Kain Cederberg (2021), BD Principal Kevin Gergits (2021), and a 2024 cohort adding senior international research and operations capacity.

Name

CastleArk

Legal name

CastleArk Management, LLC

Website

https://castleark.com

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

11–50 employees

Short description

CastleArk Management is a Chicago-based, 100% employee-owned registered investment adviser founded in 1999 that runs six growth-oriented strategies — U.S. Large/Small/SMID Cap Growth, International Equity, MLPs, and Global Energy — for institutional investors and high-net-worth individuals via separately managed accounts, collective trusts, and WRAP vehicles.

Ownership category

akta.pro rank

Product category

Investment Management

NAICS

Portfolio Management and Investment Advice (52394)

SIC

Investment Advice (6282)

akta.pro primary industry

Small-Cap Equity (Active) (FSAAAIAC)

akta.pro secondary industry

Mid-Cap Equity (Active) (FSAAAIAB)

Keywords

• Investment management services
• Growth equity strategies
• Separate account management
• Institutional asset management
• Behavioral growth investing

Headquarters

HQ city

Chicago

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, Infrastructure, Marketing or Sales

Distribution channels3 records

Marketing channels2 records

Core offering

CastleArk Management is a boutique registered investment advisor that manages client assets across six growth-oriented equity strategies (U.S. Large Cap Growth, U.S. Small Company Growth, U.S. SMID Growth, International Equity, International Small Cap Equity, and Master Limited Partnerships/Global Energy) through Separately Managed Accounts, Collective Trusts, and WRAP accounts. The firm combines fundamental research with proprietary quantitative risk management and a behavioral investing approach to capitalize on growth-stock inefficiencies for institutional investors and high-net-worth clients.

Product overview

CastleArk Management is an investment advisory firm offering a suite of six distinct growth-oriented investment strategies. The firm operates as a unified platform with strategies spanning U.S. large cap (Large Cap Growth with 20-30 concentrated holdings), U.S. small/mid cap (Small Company Growth with 85-110 diversified holdings, SMID Growth with 85-110 holdings), international markets (International Equity and International Small Cap Equity each with 65-85 global growth stocks), and energy sectors (Master Limited Partnerships with 25-35 midstream holdings, Global Energy focused on upstream and infrastructure). Strategies are available through separately managed accounts, collective trusts, and WRAP accounts, and are managed by distinct investment teams with collaborative research processes and differentiated risk management.

Differentiator

Problem solved

Functional benefit

Products and services

• CastleArk U.S. Large Cap Growth A concentrated 20-30 holding portfolio focused on dominant, high-quality, cash-flow-rich U.S. large-cap growth companies with sustainable growth and high profitability; available to institutional and high net worth investors through separately managed accounts.
• CastleArk U.S. Small Company Growth A diversified 85-110 holding portfolio of U.S. small company growth equities experiencing positive inflection in fundamentals driven by identifiable change; available through separately managed accounts.
• CastleArk U.S. SMID Growth A diversified 85-110 holding portfolio of U.S. small/mid-cap growth equities driven by new management, new products, restructuring, acquisitions, or changes in secular growth rate; available via separately managed accounts and collective trust vehicles.
• CastleArk International Equity A diversified 65-85 holding portfolio of global growth equities investing behind key growth inflection points in company fundamentals; available through separately managed accounts and collective trust vehicles.
• CastleArk International Small Cap Equity A diversified 65-85 holding portfolio of global small cap growth equities targeting idiosyncratic and industry change that produces large and sustainable inflection points; invests across developed and emerging markets excluding the U.S.
• CastleArk Master Limited Partnerships (MLP) A high-conviction 25-35 holding MLP portfolio employing a growth-oriented, total-return strategy focused on maximizing distribution growth over yield across all midstream subsectors; available via separately managed and WRAP accounts.
• CastleArk Global Energy A high-conviction portfolio focused on upstream, oilfield service, and energy infrastructure companies positioned to accelerate production and reserve growth using bottoms-up, capital returns-focused fundamental analysis.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Fred Alger Management: Boutique growth-equity specialist founded in 1964, with concentrated large-cap and SMID growth strategies and a behavioral-investing heritage closely aligned with CastleArk's. Several CastleArk PMs previously worked at Alger (notably Ajoy Reddi), making it one of the closest comps on investment philosophy and product mix.
• Geneva Capital Management: Mid-sized Wisconsin-based boutique equity manager running US All Cap Growth and SMID strategies with a fundamental, quality-tilted process. Highly comparable to CastleArk in scale, employee-owned culture, and growth-product mix; CastleArk has hired multiple analysts from Geneva (Jacob Thorsen).
• Artisan Partners: Public boutique asset manager operating an autonomous 'multi-boutique' model with multiple independent growth-equity and international teams — the closest publicly observable analogue to CastleArk's boutique-of-boutiques structure, with comparable strategy breadth and AUM scale.
• Pekin Hardy Strauss: Chicago-area boutique equity manager offering US large-cap and small-cap growth strategies to institutional and HNW clients. Comparable geographic and strategic positioning to CastleArk, with a similar fundamental growth-equity philosophy and boutique-scale employee-owned culture.
• TimesSquare Capital Management: Boutique growth-equity manager focused exclusively on US small/mid-cap and large-cap growth strategies for institutional clients. Directly comparable to CastleArk's core Small/SMID Growth and Large Cap Growth strategies on product, mandate type, and target client.
• Manning & Napier: Mid-sized equity manager running fundamental growth and concentrated equity strategies for institutional and intermediary clients. Similar in scale and tenure to CastleArk and competes for the same consultant-driven institutional mandates, particularly in SMID growth.

Broad incumbents

• Loomis Sayles: Large multi-strategy active asset manager (Natixis affiliate) running growth, value, and fixed-income strategies for institutional clients. CastleArk Co-Founder Jerome Castellini previously served as Managing Partner of its Chicago office and Large Cap Growth PM, making it both a strategic talent feeder and a direct product competitor.
• Waddell and Reed Financial: Large multi-strategy asset manager (now part of Macquarie Asset Management) historically anchored by Large Cap Growth and Multi-Cap Growth. CastleArk Co-CIO Dan Becker spent 28 years there culminating as Co-CIO and Senior PM of Large Cap Growth, positioning it as both a direct Large Cap Growth competitor and a talent source.
• American Century Investments: Large multi-strategy asset manager with US Growth, Small Cap Growth, and International Equity strategies distributed to institutional and retail clients. Competes with CastleArk in growth-equity subadvisory and institutional SMA mandates at the larger end of the boutique scale.
• Franklin Templeton: Global multi-strategy asset manager with significant US growth, international, and energy strategies. CastleArk's Ajoy Reddi previously worked at Franklin Templeton's International Small Cap team, and Franklin competes with CastleArk across multiple strategy categories globally.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles26 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 CastleArk