William L. Fillmore, Partner


More than 30 years’ experience working with business

After receiving his Juris Doctorate at the University of Chicago, William L. Fillmore began his legal career in Denver, Colorado with the regional law firm of Holland & Hart. He later practiced in Colorado Springs, and then in Logan, Utah with Olson & Hoggan. He stepped out of private practice in 1986 to serve as Associate General Counsel for Brigham Young University.


In 1991, Bill opened the Utah County office for the Salt Lake City law firm of Van Cott, Bagley, Cornwall & McCarthy, serving as managing attorney for three years before forming his own firm in Provo in 1994, now known as Fillmore Spencer LLC.


Bill has served as Chairman of the Board of Directors for the Provo-Orem Chamber of Commerce, as a member of the Brigham Young University Alumni Association Board of Trustees, as a board member of the Academy Square Foundation and as National President of the BYU Cougar Club. He currently serves as pro bono legal counsel for America’s Freedom Festival at Provo, and as Chairman of the Board of Trustees for Timpanogos Regional Hospital.


Corporate, Commercial and Business law

Bill engages in a general corporate and business law practice and handles purchase, sale and merger matters, debt and equity financing transactions, technology licensing, and commercial real estate matters.

Our Address

Fillmore Spencer LLC

At Jamestown Square

3301 North University Avenue

Provo, Utah 84604

(801) 426-8200

Practice Areas

Look to Fillmore Spencer LLC for creative, cost-effective legal counsel and trial savvy

Fillmore Spencer LLC provides highly effective counsel and representation in business and commercial legal matters, while being mindful of the need to contain clients’ legal costs. Call Bill at (801) 426-8200 or fill out the form to see how he can help your enterprise resolve its most pressing legal issues.

  • This field is for validation purposes and should be left unchanged.

Bar Admissions

  • Colorado, 1976
  • U.S. District Court, District of Colorado, 1976
  • U.S. Supreme Court, 1978
  • U.S. Court of Appeals, 10th Circuit, 1978
  • Utah, 1980
  • U.S. District Court, District of Utah, 1980



  • White House Intern
  • Special Service Award (Utah Information Technology Association)
  • Voted among “Utah’s Legal Elite,” Utah Business magazine
  • Marquis Who’s Who in American Law and Who’s Who in the West




Professional Associations

  • U.S. Supreme Court Bar
  • Utah State Bar
  • Colorado Bar Association

Community Involvement

  • Chairman, Board of Trustees, Timpanogos Regional Hospital
  • National President and Board Member, Brigham Young University Cougar Club
  • Member, Board of Governors, Utah Valley Chamber of Commerce
  • Member, Provo City Parks & Recreation Board
  • General Counsel, America’s Freedom Festival at Provo (pro bono)
  • Special Counsel and Board Member, Academy Square Foundation (restoration project)
  • Chairman, Board of Directors, Provo-Orem Chamber of Commerce
  • Member, Board of Directors, Brigham Young University Alumni Association
  • Member, Board of Directors, Provo School District Foundation for Excellence
  • Member, Advisory Board Catalyst Team at Thanksgiving Point
  • Member, Business Advisory Council, Utah Valley University
  • Co-Founder/Executive Committee Member, Utah Information Technology Summit
  • Lecturer, Marriott School of Management, Brigham Young University
  • Adjunct Professor, Brigham Young University School of Religion
  • Adjunct Professor, Utah State University Honors Program
  • Studentbody president, Brigham Young University
  • Academic Vice President, Brigham Young University
  • White House Intern, 1973
  • Author, Once Upon a Christmas, Northwest Publishing
  • Contributor, Encyclopedia of Mormonism, Macmillan Publishing Company
  • LDS Missionary, Vienna, Austria

Fillmore Spencer LLC is located in Provo, Saint George, and South Jordan UT and serves clients in and around Eagle Mountain, Highland, Lindon, Orem, Provo, Pleasant Grove, Saratoga Springs, Springville, Elberta, American Fork, Wallsburg, Alpine, Mapleton, Midway, Lehi, Spanish Fork, Cedar Valley, Draper, Heber City, Payson, Salem, Goshen, Sandy, Santaquin, Riverton, Duchesne County, Juab County, Sanpete County, Summit County, Utah County, Uintah County and Wasatch County.