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At a Glance


“Extremely supportive group of people.”


“High-profile and interesting engagements.”


“High variance in hours.”

“Lack of transparency in promotions from analysts to associates.”

“Somewhat limited exit opportunities.”

The Buzz

“One of the preeminent economic consulting firms in the world.”

“Well regarded in their niche.”

“A strong competitor.”

About Cornerstone Research


In the increasingly complicated world of commercial litigation, attorneys often need help sifting through complex economic or financial issues. Cornerstone Research is the place they turn for help. The firm has worked with top-tier law firms throughout its existence, and has provided services to firms in a diverse group of industries including finance, telecommunications, high tech, manufacturing, and energy.

Cornerstone Research provides attorneys with consulting for many facets of the litigation process. That includes finding high-quality expert witnesses, as well as providing economic and financial analysis to attorneys as they navigate the complexities of litigation and regulatory proceedings.

To the courtroom and beyond

If you were to believe everything you see on TV, the process of preparing for a trial involves a group of lawyers debating before one of them wins over the judge or jury with an emotive argument. The reality, of course, is a lot more complicated—as Cornerstone Research's list of services will attest. The firm has six main areas of support that law firms can draw upon as they prepare for cases: consulting with attorneys, engaging and working with expert witnesses, conducting research and analysis, consulting on internal and regulatory inquiries, consulting in motion practice, and preparing for deposition and trial.

The first of these categories is the broadest. Given the many complexities that can arise in a legal case, attorneys call upon Cornerstone Research to analyze key issues related to business, economics, or finance. Cornerstone Research's consultants fill that role, bringing their expert knowledge, as well that of faculty experts and industry specialists drawn from the firm’s extensive global network. In the event a case makes it to the courtroom, the firm's services can extend through the trial and even to post-trial briefs.

Stepping stone

The vast majority of undergraduates who join Cornerstone Research eventually leave to earn graduate degrees. Other departing consultants choose to pursue PhDs in economics or finance, or law degrees. The firm takes formal steps to help consultants with the application process. It brings in admissions counselors from top institutions to give presentations and talk to students about their respective schools and the requirements for admission.

COVID-19 Update

At Cornerstone Research, we foster a strong, collegial culture, rooted in thriving teams. This emphasis on collaboration has enabled us to successfully adapt to the challenges arising from COVID-19. We continue to refine our approaches thoughtfully, in response to state and local guidance, and the client and employee feedback we solicit on an ongoing basis. Current initiatives include:

  • Firmwide working-from-home model to ensure all employees’ health and safety
  • Frequent office meetings with a focus on fun and community building
  • Biweekly surveys to gauge workload, connectedness to colleagues, and overall well-being
  • Regular communications from senior leaders about progress on firm decisions and continuing projects
  • Team check-ins to promote positive, open communication
  • Resources to help employees cope with challenging situations through support groups and information sharing
  • Firmwide wellness offerings for employees to participate in activities such as virtual yoga and meditation
  • Enhanced IT support and allowances for office equipment and supplies

Cornerstone Research is successfully operating and staying connected to our clients, experts, and to one another. We continue our recruiting activities to attract qualified applicants for consulting roles to join us in 2021. These efforts include:

  • Summer internships: We remain committed to hosting the summer analysts and interns who will join us for a six-week, virtual program. If we are able to return to fully operational offices before June 15, an in-person option may be available.
  • Virtual recruiting events: Throughout March and April, we hosted a number of virtual recruiting events, including information sessions and externships. We are prepared to offer additional virtual events in the summer and fall as needed (although we hope to see students on campus).

In the News

10 November 2020

Cornerstone Research Recognized in 2020 Matter of the Year and Merger Control Matter of the Year in the Americas
Global Competition Review (GCR) recognized Cornerstone Research for its economic consulting in two high-profile matters involving merger control. The $26 billion merger of T-Mobile and Sprint won GCR’s 2020 Matter of the Year Award, and Walt Disney Company’s $71.3 billion Acquisition of 21st Century Fox Film and TV Studios was named Merger Control Matter of the Year in the Americas. Cornerstone Research has been involved in multiple cases recognized by GCR throughout the past decade. This is the second year in a row that the firm’s work was honored in the Merger Control category.

10 August 2020

Renee Bell Joins Cornerstone Research as Chief Talent Officer
Cornerstone Research is pleased to announce that Renee Bell is joining the firm as Chief Talent Officer, based in the Chicago office. Ms. Bell brings more than two decades of professional services recruiting and staffing experience to Cornerstone Research. In addition, she has substantial expertise leading diversity, equity, and inclusion initiatives, as well as corporate learning and development programs, at global recruiting and management consulting firms. As part of the firm’s corporate leadership team, Ms. Bell will play an integral role in supporting our commitment to our people and their development.

01 July 2020

Cornerstone Research Named to Chambers and Partners Litigation Support 2020
Chambers and Partners has recognized Cornerstone Research in its annual Litigation Support Guide. Citing Cornerstone Research’s “deep expertise,” the guide notes the firm’s “solid reputation” and “enviable cohort of economists.” Chambers also recognizes the firm’s “strong focus on financial services, competition and arbitration.”

05 May 2020

Inc. Magazine Names Cornerstone Research to Best Workplaces List 2020
Cornerstone Research has again been named to Inc. Magazine’s annual list of the Best Workplaces. Chosen from thousands of entries, the firm is among a select group of U.S. companies recognized for their commitment to a vibrant, supportive culture, deep employee engagement, and stellar benefits. Cornerstone Research President Yesim Richardson noted: “Our firm’s core values underpin everything we do. These values ensure not only our commitment to excellence, but also the focus on collaboration that has guided generations of staff since our founding more than thirty years ago. Living our values is what makes our culture so supportive and special. I am especially proud that the word our colleagues used most frequently to describe our firm in the Inc. survey was, in fact, ‘collaborative.’”

02 January 2020

Cornerstone Research Names Yesim C. Richardson President
Cornerstone Research announces that Yesim C. Richardson has been appointed president of the firm, effective January 1, 2020. Dr. Richardson, formerly a senior vice president, will share leadership with CEO Rahul Guha, whose tenure also began January 1, 2020. Dr. Richardson is a respected leader and mentor, with consulting and management experience that spans nearly two decades. She served as head of the financial institutions practice, one of the firm’s largest, and consults on high-stakes litigation involving the performance and valuation of portfolios, securities, and financial institutions. Dr. Richardson was elected after a meticulous succession planning process that recognized her many talents as a skilled leader, valued colleague, and trusted mentor.

12 September 2019

Cornerstone Research Names Rahul Guha CEO
Cornerstone Research today announced the appointment of Rahul Guha as CEO, effective January 1, 2020. Dr. Guha, formerly a senior vice president, succeeds Michael E. Burton, who has held the position since July 2014. Dr. Guha joined Cornerstone Research in 1996. The former cohead of the firm’s global antitrust and competition practice, he also founded the life sciences practice. Dr. Guha has led the firm’s work on numerous complex antitrust and competition, intellectual property, and product misrepresentation cases, and served as a testifying expert on several life sciences matters. Elected unanimously by our board of directors, he embodies the firm’s core values and team-based culture that are intrinsic to Cornerstone Research’s success.

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Cornerstone Research

Two Embarcadero Center
20th Floor
San Francisco, CA 94111
Phone: (415) 229-8100

Firm Stats

Employer Type: Private
President & CEO: Yesim Richardson and Rahul Guha
2020 Employees (All Locations): 775

Major Office Locations

Boston, MA
Chicago, IL
Los Angeles, CA
New York, NY
San Francisco, CA
Silicon Valley, CA
Washington, DC
London, UK

Major Departments & Practices


Antitrust and Competition

Automotive and Related Industries

Bankruptcy and Financial Distress Litigation

Consumer Finance

Consumer Fraud and Product Liability

Corporate and Government Investigations

Corporate Governance

Corporate Transaction Litigation

Data Analytics

Employee Retirement Income Security Act (ERISA)

Energy and Commodities

Financial Institutions


Intellectual Property

International Arbitration and Litigation

International Trade

Labor, Employment, and Discrimination

Life Sciences

Real Estate


Telecommunications, Media, and Entertainment