Beacon's Team

Dennis P. O'Neill Headshot

Massachusetts Office

407R Mystic Avenue
Suite 32C
Medford, MA 02155

Tel: 781-395-1650
Fax: 781-395-1651
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Dennis P. O'Neill


Dennis O'Neill is a true leader in the Construction Consulting / Surety Consulting profession. Prior to founding Beacon Consulting Group, Dennis managed the New York regional office for a large construction services consulting firm. Since opening Beacon's first office in 2003, Dennis has built the company's operations to include offices in New York, Massachusetts and California. Under his leadership, Beacon now works on a diverse range of construction consulting assignments across North America (including the U.S. and Canada). Beacon's clients include some of the world's leading Surety and Insurance companies, but also includes well-known banks, government agencies, private developers, law firms, and construction companies.

Dennis has extensive construction consulting expertise related to complex surety bond claims and dispute resolution matters. He specializes in assessing conditions associated with troubled construction projects, and recommending/implementing corrective actions to successfully complete these projects. He has over 25 years of experience managing and consulting on construction projects ranging from $100K to more than $100M. His experience includes construction management and consulting on transit projects, schools, courthouses, dormitories, stadiums, police barracks, tunneling projects, bridges, commercial buildings, residential developments, hospitals and hotels.

Dennis' consulting expertise spans all of the following areas:

I. Surety Consulting Services

  • Project Assessment
  • Cost to Complete Analysis
  • Project Monitor / Funds Control
  • Project Re-lets & Ratification of Subcontractors and Vendors
  • Construction Completion Management
  • Payment Bond Claim Review & Analysis
  • Change Order/Claim Preparation & Negotiation

II. Fidelity Bond Claim Analysis / Real Estate Fraud Investigation

III. Professional Liability Claim Review & Analysis

IV. Construction Defects Assessment

  • Causation & Liability Report
  • Cost of Repair Analysis
  • Analysis of Defective Work & Third-Party Damage Cost
  • Analysis of Timing of Defects & Resulting Third-Party Damage
  • Identification of Repair Options
  • Litigation & Exhibit Preparation
  • Expert Testimony


  • University of Maine, B.S. Civil Engineering
  • New York University, M.S. Real Estate Development/Finance


  • New York Building Congress
  • Massachusetts Building Congress
  • American Society of Professional Estimators
  • National Bond Claims Association
  • Surety Claims Institute
  • American Bar Association,
    Tort and Trial Insurance Practice Section (Associate Member)
  • The Pearlman Association


Dennis resides in Reading, Massachusetts north of Boston, with his wife Laura and their three children. Dennis is an avid sports fan (especially Bruins, Patriots, Red Sox, Celtics and Yankees) and has played hockey for fun and exercise for most of his adult life. One of Dennis' favorite wintertime events is the New England Pond Hockey Classic (an annual outdoor hockey tournament held in New Hampshire). In 2019, he participated in the Pond Hockey Classic with his team "The Beacon Bears." When he's not traveling the country working on consulting assignments, Dennis enjoys spending time with his family and watching (and coaching) his kids' sports teams (especially hockey). Over the years, Dennis has been involved as a sponsor and/or participant in many charitable events for a wide variety of organizations, such as The National Ovarian Cancer Coalition (NOCC), The Special Olympics and others.