Insights

Municipal Bond Niche First Southern is a boutique municipal bond specialist with a research-driven approach and deep due diligence, suggesting sales opportunities around specialized underwriting, advisory services, and niche fixed income products for issuers and institutional clients.

Secondary Market Focus Their core activity in trading tax-exempt and taxable municipal bonds in the secondary market indicates potential for services in liquidity management, market insights, and short-to-intermediate duration strategies for asset managers and fiduciaries.

Growth Through Expansion Recent hires in competitive municipal underwriting and emerging markets trading signal a push to broaden product capabilities; this presents cross-sell opportunities in underwriting services, syndicate partnerships, and Latin American sovereign/debt offerings.

Regulatory & Custody Edge As a registered broker-dealer with SEC and FINRA and a Pershing-BNY Mellon clearing partner, they can be positioned for enhanced custody, clearing efficiency, and regulator-friendly solutions for other mid-size institutions seeking strong compliance and operational support.

Scale & Collaboration Revenue in the mid-range with a small to mid-sized team suggests opportunities to offer technology-enabled platforms, research subscriptions, and workflow tools to improve efficiency for issuers, broker-dealers, and asset managers seeking specialized municipal research.

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First Southern LLC Tech Stack

First Southern LLC uses 8 technology products and services including RSS, WordPress, Shopify, and more. Explore First Southern LLC's tech stack below.

  • RSS
    Content Management System
  • Content Management System
  • E-commerce
  • DataTables
    Javascript Libraries
  • Google Maps
    Maps
  • Slider Revolution
    Miscellaneous
  • HTTP/3
    Web & Portal Technology

First Southern LLC's Email Address Formats

First Southern LLC uses at least 1 email format:
First Southern LLC Email FormatsExamplePercentage
FLast@fssec.comJDoe@fssec.com
100%

Frequently Asked Questions

What is First Southern LLC's phone number?

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You can contact First Southern LLC's main corporate office by phone at . 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 First Southern LLC's official website and social media links?

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First Southern LLC's official website is fssec.com and has social profiles on LinkedIn.

How much revenue does First Southern LLC generate?

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As of September 2026, First Southern LLC's annual revenue is estimated to be $10M - $25M.

What is First Southern LLC's SIC code and NAICS code?

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First Southern LLC's SIC code is 6211 - Security Brokers, Dealers, and Flotation Companies and NAICS code is 523 - Securities, Commodity Contracts, and Other Financial Investments and Related Activities.

How many employees does First Southern LLC have currently?

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As of September 2026, First Southern LLC has approximately 29 employees across 2 continents, including North America and South America. Key team members include Managing Partner | Head Of Investment Banking: R. A. P., Managing Director: R. J. E. and Managing Director, Investment Banking: R. P. Explore First Southern LLC's employee directory with LeadIQ.

What industry does First Southern LLC belong to?

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First Southern LLC operates in the Capital Markets industry.

What technology does First Southern LLC use?

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First Southern LLC's tech stack includes RSS, WordPress, Shopify, Microsoft 365, DataTables, Google Maps, Slider Revolution and HTTP/3.

What is First Southern LLC's email format?

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First Southern LLC's email format typically follows the pattern of FLast@fssec.com. Find more First Southern LLC email formats with LeadIQ.
First Southern LLC logo

First Southern LLC

Capital MarketsSan Juan, Puerto Rico11-50 Employees

First Southern LLC is a boutique financial services firm operating in the capital markets. It provides investment banking and brokerage services to issuers, institutional and private clients across the United States, with a core focus on trading municipal bonds in the secondary market, both tax-exempt and taxable. The firm emphasizes municipal bond specialization and a research-oriented approach aimed at identifying specialized opportunities that may be overlooked by others.

First Southern is a registered broker-dealer with the SEC and is a member of FINRA, the MSRB, and the SIPC, with clearing and custody services provided by Pershing-BNY Mellon. In December 2021, the firm announced appointments to expand its capabilities, including a Vice President of Emerging Markets Trading to broaden its reach into Latin American and sovereign debt, and a Vice President of Competitive Municipal Underwriting.

Section iconCompany Overview

Phone number
Website
fssec.com
SIC Code
6211 - Security Brokers, Dealers, and Flotation Companies
NAICS Code
523 - Securities, Commodity Contracts, and Other Financial Investments and Related Activities
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    First Southern LLC's revenue is estimated to be in the range of $10M - $25M

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