Robert Charles Riess 56, passed away on February 4, 2026. He was born in Methuen, Massachusetts on August 17,1969, the son of Paul and Ellen Joy (Shields) Riess.Rob moved to New Hampshire at age three, was educated in Plymouth Schools, and was a 1987 graduate of Plymouth High School. After graduation, he was employed by Construx.

In 1998 he became Co-founder and Owner of Riess Construction, along with his brothers until 2023 when he became sole owner. He spent over 35 years in the construction industry. In 2018 along with his sister, they took over Security Storage, a business that his parents started in 1983. On December 17, 2025 he assumed full ownership along with his wife. He was so proud to continue the family business with his family.

Rob enjoyed Newfound Lake, music, traveling, boating, cooking, snowmobiling, and dining out at his favorite local restaurants (where everyone knew his name and favorite drink). He took great pride in his work and deeply valued the people that worked alongside him. Most importantly he cherished his family and friends. He found his greatest happiness in the everyday moments spent with those he loved.

He was a devoted husband and proud, loving father; his presence, guidance, and unconditional love shaped their lives in ways that will never be forgotten, and his love will guide them always. To his wife, he was her partner, her friend, her constant, and her greatest love, and he will be missed beyond words.

He is survived by his beloved his wife, Catherine (Sanborn) Riess, who was the love of his life; his daughter, Alyssa Riess; and his son, Joseph Riess, He is also survived by his brother Michael Riess and wife Martha, and their son Scott Riess and Fiancée Christina Brewington; brother Pat Riess and wife Cindy and family; and sister Darlene ‘Dolly” Riess and husband Ed Penn and family.

He will also be lovingly remembered by his parents-in-law, Guy and Sharon (Keith) Sanborn; sisters and brother-in-law, Carrie Sanborn and husband Richie Coffin and family; Becky Sanborn and partner Tim LeBaron and family; Chris Sanborn and wife Sarah and their sons Trevan, Caden and Cavan Sanborn.

A celebration of life will be held in the barn at the Newfound Inn, 1030 Mayhew Turnpike, Bridgewater on February 22, 2026 from 2 to 5 pm.

In lieu of flowers, donation may be made to American Foundation for Suicide Prevention at https://supporting.afsp.org/campaign/Rob-Riess-Memorial-Fund. It is his life, not his passing, that will live on in the hearts of those who knew him.