Executive Bios

SEAN FLAHERTY, Chief Executive Officer

Sean Flaherty

As CEO, Sean provides strategic leadership to the company by establishing and meeting company sales, growth, and market share objectives. At the same time, he brings his comprehensive knowledge of international markets and his deep experience in the software industry to the Executive Board of The Nemetschek Group, based in Germany. In this role, he defines and executes the overall strategy in the global architecture, engineering, construction, and management markets.

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An innovator and proponent of computer aided design (CAD) software for more than 25 years, Sean is an industry veteran who has played an instrumental role in creating design software that works the way designers think. He was also an advocate for building information modeling (BIM) before it became an industry trend.

He began his career as a software engineer with Diehl Graphsoft Inc. and was hired to add 3D drafting for MiniCAD, the precursor to Vectorworks software, which was only 2D. He took on increasingly more management-focused roles and was vice president of engineering when Diehl Graphsoft merged with The Nemetschek Group in 2000. After serving as chief technology officer, he was named CEO in 2005. He was appointed to the Executive Board of the Nemetschek Group in 2013. He holds a B.S. in computer science from the University of Maryland.

Notable and Quotable:
"The ability to engage customers and distributors in the development of the product is one of our key strengths. Vectorworks software is really a product by and for our customers and, because of the open communication our developers have with our users, we are more approachable than other vendors."

"Converting successfully from a founder-run company to professional management inside a German holding company is a big accomplishment. We’ve managed to maintain the entrepreneurial spirit while transforming the company’s structure."

Today, Sean is proud of cultivating a culture of personal empowerment, where all employees have a voice and the ability to do their jobs as best they can.

Personal Interests:
Sean's life is very family-focused. He and his wife have three children, whom they're raising in downtown Washington, DC. His meetings with many Vectorworks Landmark customers have turned him into an avid gardener and, on weekends, you can often find him and his wife in the garden implementing a plan designed by customer Elin Haaga Landscape Gardens.

Sean plays soccer for an indoor league. He is also an avid cyclist and rides a Bacchetta recumbent bike.

He has a love of history and photography, and takes advantage of opportunities to explore these interests through his trips abroad to meet with customers and distributors.


Richard Diehl

Rich is the founder of Diehl Graphsoft Inc. and served as its president and CEO from 1985 until 2005. Prior to establishing the company, Rich was a computer engineer for Privac, Inc., of Falls Church, Virginia until March 1985. Before that, he worked as a computer engineer for the Bendix Aerospace Technology Center in Columbia, Maryland, and as an engineering technician with W.R. Grace & Co. Rich holds an M.S. in computer science from Johns Hopkins University.

STEWART ROM, Chief Marketing Officer

Stewart Rom

With responsibilities spanning a number of areas, including sales, marketing, training, technical support, and customer service, Stewart oversees all go-to-market functions of the company to create the best possible experience for the Vectorworks customer.

Stewart manages the international channel and leads the U.S. sales team. He balances the needs of the company’s direct and indirect sales channels while developing effective sales and marketing strategies targeted to diverse audiences around the world. He oversees the company’s global communications efforts and directs its global product fulfillment and customer service departments. His team also serves as a conduit for customer feedback to the Vectorworks R&D team.

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  • Oversaw the global launches of four industry-specific products: Vectorworks Architect, Spotlight, Landmark, and Machine Design, and was the driving force behind communicating with these market segments to develop products specific to their needs
  • Was instrumental in leading the company to develop strategies to meet customer needs, such as the expanded accessibility to products and an interest in environmentally sound packaging
  • Grew the size of the sales/marketing team from five employees to over 65

Stewart earned a B.S. in landscape architecture from Rutgers, The State University of New Jersey-New Brunswick.

He joined the company as vice president of sales and marketing in 2000, bringing to the role 15 years of experience managing all aspects of sales, marketing, and operations for companies in the landscape and construction industries.

Prior to that, Stewart was a partner in a design-build construction firm serving the greater Baltimore/Washington, D.C. metro area, where he managed the design estimation, sales, and marketing operations.

He previously served as chief operating officer at Chapel Valley Landscape Company and as regional manager for The Brickman Group, one of the largest landscape design-build and horticultural services companies in the United States.

In addition, he filled the role of sales manager for an accounting and management software company serving the green industry, where he developed and executed the go-to-market strategy for the rollout of a new software product on the East Coast.

Notable and Quotable:
In landscape architecture school, Stewart says he learned to "find a way to create the dreams of our customers in the most efficient way." He has taken this principle with him throughout his career, continually keeping his customers top of mind with the ultimate goal of helping them to realize their dreams.

Stewart would like to see the company continue on its path to be "as responsive as possible to our customers in their quest for service." This includes broadening customer options for purchasing software, improving the customer Web experience, and continuously improving the skill level of the sales, marketing, and customer service teams.

He says he was fortunate to have three fantastic mentors earlier in his career and learned much from these individuals who believed that "customer service came first, building teams came next, and the success of the company would follow." He also says, "the most important investment you can make is in your people. Understand the people and what motivates them. Without people, there is no business."

Personal Interests:

When not in the office, you can often find him on the slopes. His favorite ski destination is Breckenridge, Colorado.

He is also very family-focused and enjoys spending time with his wife and their three sons.

Stewart maintains his passion for landscape design as a personal past time, and enjoys working in his yard and gardens at home.

DR. BIPLAB SARKAR, Chief Technology Officer

Dr. Biplab Sarker

As CTO, Biplab leads a team of software engineers and managers, quality assurance specialists, and technical writers to develop the feature set for Vectorworks software. He continuously seeks out technology innovations and evaluates the competitive landscape to ensure Vectorworks software remains a best-in-class CAD and BIM solution for designers in the architecture, landscape, and entertainment industries.

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  • Enhanced the power and capability of Vectorworks software with the implementation of robust 3D solids and surface modeling tools
  • Was instrumental in the adoption of the Parasolid® modeling kernel for Vectorworks software
  • Continues to advance the BIM capabilities of Vectorworks software by improving architectural modeling tools and support for interoperability
  • Oversaw the evolution of Renderworks into a premier rendering application, now built on the powerful CINEMA 4D render engine

Biplab has 25+ years of experience developing CAD software. He began his career as a software engineer at ICEM Systems and later became a software consultant at Intergraph.

Prior to joining the Vectorworks team in 2000 as manager of geometry and rendering and being promoted to CTO in 2008, he served as the director of research and development at Parametric Technology Corporation. In this role, he led a large international team of programmers in both the United States and India.

Biplab earned a Ph.D. in CAD and a M.S. in mechanical engineering at The Ohio State University. He also holds a B.Tech. in mechanical engineering from the Indian Institute of Technology, Kharagpur.

Notable and Quotable:

Biplab is passionate about Vectorworks software and is proud to have taken the product to a completely new dimension during his tenure with the company. He maintains a hands-on role in the development of all Vectorworks products and looks forward to his involvement in future innovations.

Personal Interests:
Biplab enjoys spending time with his wife and teenage daughter. He is a year-round sports enthusiast and follows all kinds of athletic competitions. He loves music and has an extensive collection of classic rock. He's attended several concerts – favorites include Santana, Pink Floyd, The Rolling Stones, and The Who.

MARIA BIBLE, Chief Financial Officer

Maria Bible

As CFO, Maria drives efficiency improvements across several areas, including systems, and the accurate and timely reporting of historical financial information. She also oversees the company's capital structure and determines the best mix of debt, equity, and internal financings.

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  • Promoted to her current position in September 2012, following six successful years as the company's controller
  • Implemented an internal control system, added automation for incoming payments and transactions, and streamlined information processing


Maria's previous experience includes working as a financial operations principal for Capital Financial Group's $45-million-dollar broker-dealer H. Beck, Inc. In this role, she was responsible for coordinating financial reporting to the executive team, as well as the timely filing of required reports with the SEC. She also coordinated the company's periodic regulatory and annual financial statement audits.

She gained additional experience in mutual funds, contracts, and accounting while serving in various roles at the State of Maryland's Office of Legislative Audits, Alex Brown (later purchased by Deutsche Bank), and Chevy Chase Bank. Maria received a bachelor's degree in accounting from the University of Maryland, College Park. She earned her Certified Professional Accountant (CPA) credential in 2006, and is a member of the Maryland Association of CPAs.

Notable and Quotable:

Maria's position is a challenging one in that while the company is a wholly owned entity, its German-based parent company, The Nemetschek Group, is publicly traded. However, Maria uses her institutional knowledge as an asset in achieving the company's financial goals while developing her department's technical accounting skills.

As the company's sales grow and become increasingly complex, Maria works to ensure that the accounting department keeps up with existing and emerging demands while striving to increase the efficiency of all accounting transactions. She's also intensely deadline-driven, and she directs her team to follow a strict schedule to meet all internal and external reporting requirements.

While financials may seem straightforward with the fundamental theory that debits must always equal credits, gray areas continually emerge that make the field exciting. For example, Maria has faced exciting challenges during her tenure, including making changes in accounting for sales versus revenues when the company introduced its software subscription program. She is always eager to evolve her skills and those of her team to meet such demands.

Personal Interests:

When not in the office, Maria likes to spend time with her husband and two young children.

She also enjoys rock climbing, SCUBA diving, and skiing, as well as archeology and traveling. Among her travels, she has skied Mont Blanc, dove in Puerto Rico, and hiked part of the Inca Trail in Peru.

PAUL PHARR, Chief Information Officer

Paul Pharr

Paul has been with the company since 1991, and has also held the position of CTO. As CIO, Paul is responsible for IT, management information systems, web applications, and delivery technologies.

Prior to joining the company, Paul developed mathematical induction solution software for Abtech, Inc., in Charlottesville, VA. He has researched and written in the fields of artificial intelligence and 3D graphics, as well as authored articles for software development publications.

He holds a B.S. in computer science from the University of Virginia’s School of Engineering and an M.S. in computer science from Johns Hopkins University.

ROBERT ANDERSON, Vice President of Integrated Practice

Rober Anderson

Robert oversees the direction and scope of new product development. He also acts as an industry liaison with standards agencies, competitors, and customers. In addition, Robert is a software architect and has designed features for Vectorworks Architect software and 2D/3D integration, as well as interoperability capabilities.

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  • Upon joining the Vectorworks team, led a team of programmers developing the initial releases of the Industry Series products
  • Has been instrumental in the continuing evolution of Vectorworks software’s BIM capabilities
  • Lectured and instructed at various educational institutions, including his alma mater, Rice University, and the University of Texas
  • Presented at a variety of professional trade shows, including the 2009 buildingSMART forum in Berlin
  • Wrote magazine articles covering the topics of design automation and energy-efficient design for various regional and national publications
  • Developed a MiniCAD-based modeling and specification system for a Holland, Michigan-based industrial workstation manufacturer


As a professional architect, Robert brings more than 20 years of architecture experience to his role.

Prior to joining the company, Robert was an architect with DCHSA Seton Medical Center in Austin, Texas. He was previously the owner and principal of an architectural and CAD consulting practice, and also served as a partner in a facilities management company.

He graduated magna cum laude with a B.A. and later a bachelor of architecture degree from Rice University. He sits on the board of the buildingSMART alliance and is an active member of several committees.

Notable and Quotable:

"We work to leverage the talents and design ideas of our users. We strive to implement each tool in a way that is helpful to the designer but still allows freedom and creativity."

"I’m exceedingly proud of how diverse a company we are. We really do support that at all levels, and we have people from all over the world working here."

In 1997, Robert captained the winning MiniCAD team in the "3D Architect’s CAD Shoot-Out."

He produced add-on software for Diehl Graphsoft’s MiniCAD software, namely LayerMAP and MiniReporter.

Personal Interests:

Robert is an avid cyclist for transportation, as well as recreation.

He loves to sing and is active in his church choir.

Robert and his wife enjoy life as empty nesters with two grown daughters and one large, demanding Golden Retriever. He is proud to have passed his interest in cooking along to his youngest daughter, who now professionally assists a cookbook author in New York City.