April 2000

 Founder, Mark S. Howells assembled a team of talented professionals, many of whom are still an integral part of the firm, and opened the doors at M.S. Howells & Co.


July 2017

M.S. Howells & Co. celebrated an impressive milestone in the financial industry by reaching over 17 years in business. Through excellent customer service and market adaptability, the firm has established itself as a lasting and steady presence.






Over 35 years of industry experience.

While working towards a degree in criminal justice, Mr. Howells began a decade-long career as a police officer. He was introduced to the securities industry while working nights on the Phoenix Police Department. In 1981, he started a job with the back office of a NYSE member firm. There he learned the intricacies of the securities industry while working his way into sales, and then management before forming his own firm in 1987.

In 2000, he sold his ownership in the firm, and started M.S. Howells & Co., a boutique broker-dealer that services hedge funds and Registered Investment Advisors. With over 30 years of experience in the securities industry, Mark has extensive knowledge of the high net worth client, market making, corporate finance, options, and the municipal and corporate bond market.

 In 2008, Mr. Howells recognized a need within the industry for quality accounting and administrative services for hedge fund managers. With that, he established PartnersAdmin, LLC to provide comprehensive back office support to hedge fund managers as well as private equity, real estate, and venture capital funds.

In addition, Mr. Howells spent 15 years as a member of the board of directors at Inventure Foods, Inc. (SNAK) and is responsible for taking them public.

Through his various successes in life he still has the desire to provide for the public through his businesses and philanthropy, where he supports various charities through his foundation.

Mark holds a series 7, 24, 53, 79 and 63 securities license.



Chief Operating Officer



An industry veteran who's focused on the client.

Ms. Santa Maria has been in the Securities industry since 1999, joining M.S. Howells & Co in 2001. She began her securities career as a retail sales broker and became an institutional salesperson upon joining MSH. Katrina spearheaded the firm’s prime brokerage business, building out a prime brokerage trading platform, portfolio reporting services, soft dollar arrangements, and operational support. She was responsible for marketing, sales, service, and driving trading revenue. Katrina was promoted to COO in 2011, and is responsible for the day to day operations of the broker/dealer along with overseeing new business initiatives, technology solutions and operational efficiency.

Prior to working in the securities industry Ms. Santa Maria had a 20-year career in the hospitality industry. She held several senior management positions including General Manager of a 10,000 square foot restaurant/bar with over 100 employees and gross revenue of $3.5 million per year.

Katrina holds a series 6, 7, 24, 63, and 65 securities license.