Siebert Williams Shank CEO Marks 30 Years In Business

Suzanne Shank, co-founder and chief executive of Siebert Williams Shank, discussed the firm's 30th year in business during an Oct. 8, 2026 interview on Bloomberg Television's "The Close," hosted by Romaine Bostick and Jess Menton, according to Bloomberg.

What milestone is the firm marking?

Siebert Williams Shank is marking 30 years since it launched in 1996 as a municipal bond underwriter, Shank told Bloomberg. The firm's history traces to that founding year, and Shank used the anniversary interview to walk through how the business line has changed since then.

What did the firm do when it started?

According to the Bloomberg segment, the firm began as a municipal bond underwriter, a business built on helping state and local governments raise money in the public debt markets. That municipal practice remains part of the firm's work today, Shank said, even as the business has added other lines.

What does the firm do now beyond municipal bonds?

Shank told Bloomberg the firm has expanded into corporate debt markets, moving beyond its original municipal-bond footprint into underwriting and advisory work tied to corporate issuers. The firm continues to be active in municipals alongside that newer corporate business, per the Bloomberg report, rather than having exited the original line.

How many large companies does the firm serve?

The firm now works with 80 of the Fortune 100 companies, Shank said in the interview. Bloomberg's summary of the conversation does not break down which 80 companies or what specific services are provided to each, so the figure should be read as a headline count of Fortune 100 relationships rather than a detailed client list.

What has driven the firm's growth over three decades?

Shank pointed to mergers and acquisitions as a driver of the firm's expansion, according to Bloomberg. The report does not list the specific deals or name the firms acquired or merged with Siebert Williams Shank, so the mechanics of that consolidation were not detailed in the available source material.

Where can the full interview be viewed?

The complete conversation between Shank, Bostick, and Menton is available on Bloomberg Television's "The Close", which carries the full discussion of the firm's 1996 founding, its shift into corporate debt, its Fortune 100 client base, and the role of mergers and acquisitions in its growth. Bloomberg's video page is the only source for the interview's specific figures cited here, including the Fortune 100 count and the 1996 start date, and no additional financial figures — such as deal volume, revenue, or headcount — were included in the segment as summarized.