Insights

Institutional Growth Siebert is strengthening institutional sales with a new head of Institutional Sales and an extended clearing agreement, signaling a sales opportunity for institutional platforms, data, research, custody, and back office solutions to scale mid-size firms.

Active Platform The launch of Siebert.Pro targets active self-directed investors, opening doors for selling advanced trading tools, real-time market data, APIs, and platform integrations to fee-based advisors and DIY traders seeking tech-enabled trading.

AI and Digital Assets Partnerships on AI-powered investor solutions and the introduction of a Digital Assets Research capability point to demand for AI analytics, crypto research, and compliant digital asset custody and trading infrastructure.

Social Impact Collaborations with Beavoice and Voices For Children highlight CSR alignment that can support co-branded financial literacy programs and employee financial wellness initiatives as a pathway to enterprise clients.

Southeast Growth The Miami base and strategic partnerships position Siebert to win mid-market RIAs and regional wealth managers in the Southeast, offering scalable onboarding, compliance, and marketing technology integration to accelerate client acquisition.

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Muriel Siebert & Co., Inc. Tech Stack

Muriel Siebert & Co., Inc. uses 8 technology products and services including Facebook Pixel, Open Graph, WordPress, and more. Explore Muriel Siebert & Co., Inc.'s tech stack below.

Facebook Pixel
Analytics
Open Graph
Content Management System
WordPress
Content Management System
Microsoft SQL Server
Database
Twemoji
Font Scripts
Linkedin Sign-in
Identity Verification
HTML
Programming Languages
HSTS
Security

Media & News

Muriel Siebert & Co., Inc.'s Email Address Formats

Muriel Siebert & Co., Inc. uses at least 2 format(s):

Muriel Siebert & Co., Inc. Email Formats	Example	Percentage
FLast@siebertnet.com	JDoe@siebertnet.com	88%
FirstLast@siebertnet.com	JohnDoe@siebertnet.com	7%
Last@siebertnet.com	Doe@siebertnet.com	3%
First.Last@siebertnet.com	John.Doe@siebertnet.com	2%
FLast@siebert.com	JDoe@siebert.com	70%
Last@siebert.com	Doe@siebert.com	28%
First@siebert.com	John@siebert.com	2%

Frequently Asked Questions

Where is Muriel Siebert & Co., Inc.'s headquarters located?

Muriel Siebert & Co., Inc.'s main headquarters is located at 653 Collins Avenue Miami, Florida 33139 United States. The company has employees across 2 continents, including North AmericaAsia.

What is Muriel Siebert & Co., Inc.'s phone number?

You can contact Muriel Siebert & Co., Inc.'s main corporate office by phone at

+1-800-872-****

. 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 Muriel Siebert & Co., Inc.'s stock symbol?

Muriel Siebert & Co., Inc. is a publicly traded company; the company's stock symbol is SIEB.

What is Muriel Siebert & Co., Inc.'s official website and social media links?

Muriel Siebert & Co., Inc.'s official website is siebert.com and has social profiles on LinkedIn.

What is Muriel Siebert & Co., Inc.'s NAICS code?

Muriel Siebert & Co., Inc.'s NAICS code is 52 - Finance and Insurance.

How many employees does Muriel Siebert & Co., Inc. have currently?

As of June 2026, Muriel Siebert & Co., Inc. has approximately 160 employees across 2 continents, including North AmericaAsia. Key team members include Chief Executive Officer And Owner: D. S.Chief Financial Officer: M. C.Chief Investment Officer: M. M.. Explore Muriel Siebert & Co., Inc.'s employee directory with LeadIQ.

What industry does Muriel Siebert & Co., Inc. belong to?

Muriel Siebert & Co., Inc. operates in the Financial Services industry.

What technology does Muriel Siebert & Co., Inc. use?

Muriel Siebert & Co., Inc.'s tech stack includes Facebook PixelOpen GraphWordPressMicrosoft SQL ServerTwemojiLinkedin Sign-inHTMLHSTS.

What is Muriel Siebert & Co., Inc.'s email format?

Muriel Siebert & Co., Inc.'s email format typically follows the pattern of FLast@siebertnet.com. Find more Muriel Siebert & Co., Inc. email formats with LeadIQ.

When was Muriel Siebert & Co., Inc. founded?

Muriel Siebert & Co., Inc. was founded in 1967.

Muriel Siebert & Co., Inc.

Q: How many employees does Muriel Siebert & Co., Inc. have currently?

Muriel Siebert & Co., Inc. has approximately 160 employees.

Q: What technology does Muriel Siebert & Co., Inc. use?

Muriel Siebert & Co., Inc.'s tech stack includes C#, HSTS, React, LiveAgent, CareerPlug.

Q: What is Muriel Siebert & Co., Inc.'s NAICS code?

Muriel Siebert & Co., Inc.'s NAICS code is 52 (Finance and Insurance).

Financial ServicesFlorida, United States51-200 Employees

Muriel Siebert & Co., Inc. is a financial services firm that provides brokerage and wealth management services. It is headquartered at 653 Collins Avenue in Miami, Florida 33139, United States, and employs 51 to 200 people. The firm is a member of the NYSE, FINRA, and SIPC, and maintains a website at siebert.com. Its history traces back to founder Muriel Siebert, who became the first woman to own a seat on the New York Stock Exchange, and the firm describes its mission as pursuing financial freedom for its clients. Recent announcements in 2025 include a clearing agreement extension with National Financial Services through October 2030 and the launch of Siebert.Pro and Siebert.Valor, along with leadership appointments.