What is Stone & Youngberg's NAICS code?

Stone & Youngberg's NAICS code is 52 (Finance and Insurance).

Insights

Legacy and stability Longstanding private investment firm (founded 1931) with a steady revenue range suggesting resilient demand for underwriting and investment services; potential for long-term relationship opportunities with institutional clients seeking reliability.

Regional footprint Headquartered in San Francisco with multiple U.S. offices indicates a broad regional coverage and ability to support national clients; prospect opportunities across multiple markets with localized teams.

Diversified securities Offers a wide variety of tax-exempt and taxable securities for individuals and institutions, signaling cross-sell potential into both municipal and corporate investment strategies, including taxable alternatives.

Mid‑sized firm Employee range of 51-200 places Stone & Youngberg between boutique and large institutions, suggesting agility for personalized service while having enough scale for sophisticated underwriting and investment services.

Growth opportunities Revenue in the mid-range of hundreds of millions and a private firm profile may present opportunities to upsell enhanced underwriting services, advisory, and capital-raising capabilities to mid-market and niche institutional clients seeking trusted partners.

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Media & News

David Hartley retired from Stone & Youngberg LLC as managing partner on Jan 1st '92.
David Hartley, pictured here in 1985, retired as managing partner of Stone & Youngberg in 1992.
Jul 19, 2011 | www.bondbuyer.com

Stone & Youngberg's Email Address Formats

Stone & Youngberg uses at least 1 format(s):

Stone & Youngberg Email Formats	Example	Percentage
FLast@syllc.com	JDoe@syllc.com	98%
First.Last@syllc.com	John.Doe@syllc.com	2%

Frequently Asked Questions

What is Stone & Youngberg's phone number?

You can contact Stone & Youngberg's main corporate office by phone at

+1-415-445-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Stone & Youngberg's official website and social media links?

Stone & Youngberg's official website is syllc.com and has social profiles on LinkedIn.

How much revenue does Stone & Youngberg generate?

As of July 2026, Stone & Youngberg's annual revenue is estimated to be $100M - $250M.

What is Stone & Youngberg's SIC code NAICS code?

Stone & Youngberg's SIC code is 6211 - Security Brokers, Dealers, and Flotation Companies NAICS code is 52 - Finance and Insurance.

How many employees does Stone & Youngberg have currently?

As of July 2026, Stone & Youngberg has approximately 62 employees across 1 continents, including North America. Key team members include Owner: M. E.Director: M. C.Manager: D. F.. Explore Stone & Youngberg's employee directory with LeadIQ.

What industry does Stone & Youngberg belong to?

Stone & Youngberg operates in the Financial Services industry.

What is Stone & Youngberg's email format?

Stone & Youngberg's email format typically follows the pattern of FLast@syllc.com. Find more Stone & Youngberg email formats with LeadIQ.

When was Stone & Youngberg founded?

Stone & Youngberg was founded in 1931.

Stone & Youngberg

Q: What is Stone & Youngberg's official website and social media links?

Stone & Youngberg's official website is syllc.com. Stone & Youngberg has social profiles on LinkedIn.

Q: How many employees does Stone & Youngberg have currently?

Stone & Youngberg has approximately 62 employees.

Financial ServicesCalifornia, United States51-200 Employees

Founded in 1931, Stone & Youngberg is a private investment firm in the financial services industry. It provides underwriting and investment services and offers a mix of tax-exempt and taxable securities for investment by individuals and institutions. The firm is headquartered in San Francisco, California, and maintains offices in Los Angeles, San Diego, New York, Chicago, Phoenix, Albany, NY, Richmond, VA, Annapolis, MD, and Big Bear Lake, CA. The company employs between 51 and 200 people. Revenue is reported in the range of $100 million to $250 million. The firm's website is https://syllc.com.