Frank B. Gilbreth's multiple construction companies created at least 90 large-scale projects over its span of about fifteen years. This list is likely incomplete and there may be many more minor projects that have escaped discoverable records.

• Note: the numbering system here is completely arbitrary and used only for convenience. There may be any number of anomalies of actual chronology and undocumented projects. {| style=“” ! ! Project ! Location ! Date |- | 001 | Unknown | Auburn, NY | July 1895 |- | 002 | Prescott Hall dormitory | Cambridge, MA | Under construction May 1896
  Occupancy by Sep 1896 |- | 003 | Webster Building | Boston | 1896 |- | 004 | Craigie Hall dormitory (masonry work) | Cambridge, MA | 1897 |- | 005 | Brimmer Chambers apartments | Boston | 1898 |- | 006 | Women’s Club building | Boston | Contracted 1898
  Completed 1899 |- | 007 | Boston Dispensary addition | Boston | 1898-99 |- | 008 | Lowell Memorial Electrical Engineering Laboratory | Boston | Contract Jun 1902
  Completed Aug 1902 |- | 009 | Brick Chimney & Powerhouse for Cambridge Electric Light Co | Cambridge, MA | 1902 |- | 010 | Expansion of Towns Hotel | Bellows Falls, VT
  [now Rockingham] | 1902 |- | 011 | Enlarge Power Station Canal | Garvin’s Falls, NH | 1902 |- | 012 | Extension of Mill for Boston Manufacturing Company | Waltham, MA | 1902 |- | 013 | Factory for Cluett, Peabody & Co (Arrow Shirts) | Leominster, MA | 1902 |- | 014 | 3-story Building for Lever Brothers | Cambridge, MA | 1903 |- | 015 | “Dove” Paper Mill for Megargee Paper Company | Modena, PA | Contract Mar 1903
  Completed late 1903 |- | 016 | Concrete Dam for Potter Hill Textile Mill | Westerley, RI | Contract July 1903 |- | 017 | Moses Taylor Hospital | Scranton, PA | Contract Oct 1903 |- | 018 | Irons & Russell Building | Providence, RI | Contract Oct 1903
  Completed 1904 |- | 019 | Factory for Columbian Rope Co | Auburn, NY | 1903-04 |- | 020 | Piper Building | Baltimore, MD | Contract Apr 1904 |- | 021 | 3-story Warehouse | Baltimore, MD | Contract Apr 1904 |- | 022 | 6-story Warehouse for John Duer & Sons | Baltimore, MD | Contract May 1904 |- | 023 | Building for DA Sargent School | Cambridge, MA | Completed Aug 1904 |- | 024 | Ray Memorial Building | Franklin, MA | 1904 |- | 025 | Molasses Storage Tanks & Pumping Plant | Boston | 1904 |- | 026 | Factory for Auburn Hame Co | Auburn, NY | 1904 |- | 027 | Hydropower Dam on Saranac River | Cadyville, NY | 1904-05 |- | 028 | Two Mercantile Buildings for Rumford Falls Power Co | Rumford Falls, ME | 1905 |- | 029 | 4-story Mill for Walworth Manufacturing Company | Boston | < 1905 |- | 030 | House & Stable for E.J. Bliss | Boston | < 1905 |- | 031 | Powerhouse & for Syracuse, Rochester & Eastern Railroad | Lyons, NY | < 1905 |- | 032 | Auto Garage | Boston | < 1905 |- | 033 | 7-story Dormitory (Harvard?) | Cambridge, MA | 1905? |- | 034 | Powerhouse for City of East Orange, NJ | East Orange, NJ | < 1905 |- | 035 | Factory for Kursheedt Manufacturing Co | Brooklyn, NY | < 1905 |- | 036 | Concrete Canal for Lehigh Coal & Navigation | Taylorsville, Pennsylvania
  (now Washington Crossing) | 1905? |- | 037 | 6-story plant for John J. Latteman Shoes | Brooklyn, NY | 1905 |- | 038 | Plant for Oneida Community Company Ltd | Oneida, NY | Jun 1905 |- | 039 | Factory & Warehouse for Walter F. Lowney Co | Montréal, Québec, Canada | Jul 1905 |- | 040 | Mill & Mill Town for St. Croix Paper Company | Sprague’s Falls, ME
  (now Woodland/Baileyville) | Contract Feb 1905
  Construction begun Mar 1905
  Completed Dec 1905 |- | 041 | Mill Buildings & Mill Town for International Paper Co | Piercefield, NY | Contract Aug 1904
  Completed 1905 |- | 042 | Dams & Powerhouse for International Paper Co | Berlin, NH | 1905 |- | 043 | Rail Car Barn & Substation for NY Central Railroad | North Syracuse, NY | Contract May 1905 |- | 044 | Roper Hospital | Charleston, SC | Contract May 1905
  Completion announced Feb 1906 |- | 045 | Hydropower Dam for Walter Baker Chocolate Company | Milton, MA | 1905 |- | 046 | Residence for C.B. Alexander | Manhattan, NYC | 1906? |- | 047 | Barge Canal for Union Sulphur Co | Sulphur, LA | Contract Oct 1905
  Never completed by FBG |- | 048 | Factory for Yale & Towne | Stamford, CT | 1905 |- | 049 | Factory for Simmons Hardware Company | Sioux City, IA | Contract May 1905 |- | 050 | Two Factory Buildings for Yale & Towne | Stamford, CT | 1906 |- | 051 | 4-story Mill for Minterburn Textile Mills | Rockville, CT | Contract Sep 1906
  Constrution begun Oct 1906
  Completed early 1907 |- | 052 | MIT Naval Engineering Building | Boston | Jul 1906 |- | 053 | 10-story McGraw Building (“Engineering Record“) | Manhattan, NYC | 1906 |- | 054 | Georgetown Steam Plant (Seattle Electric Lighting Co) | Georgetown (Seattle), WA | Construction begun Apr 1906
  In operation 1907 |- | 055 | Mutual Life Insurance Building | San Francisco | 1906-07 |- | 056 | Two warehouses for Timothy Hopkins | San Francisco | Contract Jun 1906 |- | 057 | Three Buildings for Henry Sonntag | San Francisco | Contract Jun 1906 |- | 058 | 8-story St. Clair Building (Boyd Building) | San Francisco | Completed Jul 1907 |- | 059 | North Beach Electric Power Station for City Electric Co | San Francisco | In operation Oct 1907 |- | 060 | Citizen’s Bank of Alameda | Alameda, CA | 1907 |- | 061 | 7-story Wilson Building (rebuild) | San Francisco | 1907-08 |- | 062 | 4-story Union Square Hotel | San Francisco | ca. 1907 |- | 063 | 5-story Pacific Grand Hotel | San Francisco | Opened July 1907 |- | 064 | Plant for Pennsylvania Cement Company | Unknown | 1907 |- | 065 | Mill for Champion Fibre Co | Canton, NC | Contract ca. Mar 1906
  Completed by Jan 1907 |- | 066 | Mill for Champion Coated Paper Co | Hamilton, OH | Contract Sep 1906
  1907 |- | 067 | Power Station for Plymouth and Brockton Street Railway | Plymouth, MA | 1907 |- | 068 | Power Station for Blue Hill Street Railway | Canton, MA | 1907? |- | 069 | 3-story Factory Addition for Columbian Rope Co | Auburn, NY | 1907 |- | 070 | Two Factory Extensions for Yale & Towne | Stamford, CT | Contract Apr 1907 |- | 071 | 5-story Factory for S.L. Allen & Co | Philadelphia, PA | Contract Feb 1907 |- | 072 | “Fenimore” Paper Mill for Union Bag and Paper Co | Glen’s Falls, NY | 1907? |- | 073 | Factory for H.C. White Co | North Bennington, VT | Contract Nov 1907 |- | 074 | Factory for Heywood Brothers & Wakefield Co | Gardner, MA | Contract Jun 1907
  Construction Mar 1908 |- | 075 | Can Factory ofr Seacoast Canning Company | Eastport, ME | Contract Feb 1908 |- | 076 | Shoe & Leather Exposition Building (completion) | Boston | Contract May 1908 |- | 077 | Two Warehouses for New England Confectionery Company (NECCO) | Boston | Probably 1907 (< 1909) |- | 078 | Project for W.M. Crane Paper Co | Dalton, MA | < 1909 |- | 079 | Project for Dalton Power Co | Dalton, MA | < 1909 |- | 080 | Project for Columbia Electric Vehicle Co | Boston | < 1909 |- | 081 | Project for Boston Steam & Power Co | Boston | < 1909 |- | 082 | Project for the Lowell Bleachery Co | Lowell, MA | < 1909 |- | 083 | Project for Houghton County Street Railway | Houghton, MI | < 1909 |- | 084 | Project for Bay Road Construction Co | Syracuse, NY | < 1909 |- | 085 | Paper mill for H.G. Lowe Paper | Ridgefield, New Jersey | < 1909 |- | 086 | 1-story Extension to Cotton Mill for H.E. Danner Textile Co | Paterson, New Jersey | Contract Jul 1908
  Construction begun Dec 1908
  Probably completed Feb 1909 |- | 087 | Box Plant for Atwood-McManus Co (reconstruction) | Chelsea, MA | Dec 1908-Mar 1909 |- | 088 | Hydroelectric Powerhouse for Grand Falls Power Co | Grand Falls, NB/ME
  (international river border) | Contract Mar 1909
  Never executed |- | 089 | Ransom Hollow Dam & Powerhouse for Warren County Power Co | Columbia, New Jersey | Contract Oct 1909 |- | 090 | Ransom Hollow Dam & Powerhouse | Creighton, GA | Contract Feb 1910 |- | 091 | Paper Mill for Union Bag & Paper Co | Trois-Rivières, Québec, Canada | Contract Sep 1910
  In service early 1912 |}