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We work with Diamond Capital Advisors, one of the top Investment Banking firms in Los Angeles, on client assignments which require a team approach. 


Mike Simon

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Nicholas Berquist


Shawn Thompson

Mike has over 20 years of corporate finance experience focused primarily on strategic mergers & acquisitions made on behalf of middle-market and larger corporate clients, primarily cross-border transactions between Europe and the United States.

Previously, he was a managing director at Glocap Advisors, LLC. Earlier he was principal at American Corporate Services. Prior to joining American Corporate Services, Mr. Simon was a Senior Vice President and Portfolio Manager of Ferranti High Technology, a venture capital firm funded by UK based companies active in the technology industry and Baring Brothers (now ING Group N.V.). While at Ferranti, he was involved in raising capital, restructuring, M&A and valuation advisory for companies in the technology sector and served as a director of several portfolio companies. Mr. Simon also has operating experience with technology companies in a number of positions.

Mike earned a Bachelor of Arts degree from the University of Pennsylvania and a Master of Business Administration degree from the Stern School of Business at New York University.

Areas of Specialty: Information technology, photonics, sensors and electronics hardware.

Mike holds Series 7, 24, 63 and 79 licenses with FINRA:    

Nick Berquist is a Senior Associate at American Corporate Services.  Nick previously worked with Strategic Wealth Management Group and passed his CFA Level One certification examination on the first try.  Nick’s experience includes investment strategy optimization, portfolio modeling to maximize returns and data visualization.  

Prior to joining American Corporate Services Nick was an operations manager in the hospitality industry.  Nick demonstrated excellence in growing revenue and profits for both new ventures and seasoned establishments. During his time in hospitality management, he was involved in activities ranging from bulk purchase negotiations, management training and hiring, vertical integration, product sourcing, and cost center control.


Nick graduated Magna Cum Laude from Penn State University where he earned his Bachelor of Science degree in Finance.               Email Nick

Ships are built around a strong keel, the underpinning of the ship upon which everything is built, and the performance of the vessel is ultimately dependent on.  Shawn Thompson is a big part of the keel that drives the success of ACS.

Shawn has executed transactions in a range of industries including consumer products, technology, healthcare, manufacturing, distribution, retail, and businesses services.  Shawn is also a Managing Director at Diamond Capital.  Shawn worked at JP Morgan, Barrington Associates (now Intrepid), Mosaic Capital and other middle market investment banking firms. He has completed over 50 transactions in sell-side advisory, buy-side advisory, leveraged buyouts, restructuring and valuations. 

Shawn earned a B.S. in Economics at Wharton School of Business, University of Pennsylvania (Magna Cum Laude). Shawn is FINRA licensed (Series 79, 63).

Shawn enjoys playing and listening to live music, reading, and spending time with his son, including being beaten at video games, and attending sporting events across Los Angeles.

Email Shawn

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Warren Vidrine

Warren Vidrine is one of the world’s leading experts in molecular spectroscopy.  For over 30 years he has provide domestic and international companies with corporate technology evaluations and laboratory instrument design services.

Warren has assisted companies in developing ground-breaking products, including the first FT-IR process analyzer.  He has assisted companies in optimizing and deploying a broad range of spectrometry systems, from UV-Vis to FT-IR, NMR as well as MS, LC, GC, SFC and electrochemistry instruments and systems.  Warren has helped many companies overcome quality and manufacturability issues.

Warren has numerous patents, awards, publications and has been an invited speaker at 24 international conferences on four continents.  Warren received his BS in Chemistry at Spring Hill College (ACS certified program), MS in Biochemistry at Saint Louis University School of Medicine and Ph.D. in Physical Organic Chemistry at the University of South Carolina.

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Chuck Dubois

Chuck is an accomplished and senior global executive with proven success in achieving growth objectives through change management, organizational restructuring, competitive analysis, M&A, business integration, business development, sales and marketing, and executive hiring and development.

Chuck is the founder of Dubois Consulting LLC, DBA: Acceleteq, a business Consultancy focused on helping founders and owners of businesses achieve their strategic plans through business development and succession planning.

Chuck served on the Executive Board of Halma PLC for 10 years.  In his last 4 years at Halma, he developed implemented the strategy for growth of their Environmental and Analysis Sector.  Operating in a global organization with P&L responsibility for over $350m in revenue and $80m in profits across 15 business units with 1,200 personnel, he spearheaded his Sector to annual profit growth of 20% CAGR and revenue growth of 15% CAGR, achieved through organic growth and key strategic acquisitions.  Email Chuck

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