Hoy-Scott Watershed Society (HSWS) is a not-for-profit, volunteer run environmental stewardship group, that conducts a salmon enhancement program in partnership with the City of Coquitlam, and the Department of Fisheries and Oceans (DFO) Canada. HSWS is actively involved in watershed restoration, public awareness, education and preservation.

Before becoming a non-profit society, the group was originally known as the Hoy Creek Streamkeepers. They restored an old, 3-room trout rearing facility on the Frederick Brewer property in 1995, with the support of the DFO, the City of Coquitlam, and the Coquitlam Optimists Club. Coho from the Port Coquitlam Hunting and Fishing Club hatchery were placed in the rearing pond in July 1995. Following the completion of the rearing pond, the Hoy Creek Streamkeepers joined with Scott Creek stream-keeping groups to form the Hoy-Scott Streamkeepers in 1996. The hatchery itself was completed in 1997.

In 2002 the Hoy-Scott Watershed Society was formed and registered with an expanded mandate to promote watershed restoration and help raise awareness of our shared responsibility for the care of the creek and its surrounding habitat. Founding members who signed the Society document were: Keith Kozak, Linda Gorsline, Chris Hamming, Andrea Tubbs, and Shawn Tubbs.

Initially the goal was to help rebuild a population of coho in Hoy Creek. Now that coho are consistently coming back in encouraging numbers, HSWS is focused on supporting and maintaining returns, as well as carrying out other activities that keep the environment of the creek healthy. In 2015 their salmon enhancement program was expanded to include chum salmon.

HSWS spends a great deal of time in the removal of invasive plants, either during weekly work hours, or via special-planned events with the City of Coquitlam's Bad Seed program. The Society also undertakes activities including Adipose Fin-Clipping, In-Stream Creek Cleans, Rearing Pond Cleans, Hoy Trail Cleanups, and an annual pair of events called “Salmon Leave Home” and “Salmon Come Home.” HSWS received a Lifetime Achievement Group Certificate of Appreciation from the City of Coquitlam in 2018.

The history of the Columbian newspaper can be traced back to 1859. The New Westminster Times, the predecessor of the newspaper, was published on Sept. 17th, 1859 by Leonard McClure. In 1861, Leonard McClure sold the Times to a group of New Westminster citizens who renamed the paper, the British Columbian whose first issued appeared on February 13, 1861. John Robson, a future premier of the province, was appointed as its editor. The newspapers office was located at the south side of Columbia Street in Lytton Square. In March 1862, the office moved several doors east along Columbia. After the consolidation of the colonies of Vancouver Island and British Columbia in 1868, the local economic conditions worsened and Robson moved the newspaper to Victoria in 1869 where it was eventually bought by a competing newspaper, the Daily British Colonist.;Robson returned to New Westminster in 1880 and purchased a local paper, the Dominion Pacific Herald in 1880. In August, 1881, his brother, David Robson, joined John Robson. Robson with the help of his brother published the first issue of the new British Columbian in January 1882. However, in 1883, John Robson again returned to Victoria to pursue his political ambitions and left the newspaper in the hands of his brother to manage until 1888, when the newspaper changed ownership. In this year, the newspaper was purchased by the five Kennedy brothers: George was the editor, Robert, the business manager, with the remaining three brothers being responsible for other duties. Throughout its early years the newspaper was published several times a week, but it was not until 1886, when the newspaper became a daily paper and was renamed the Daily Columbian. After the great New Westminster fire of 1898, the newspaper ceased publication for one month. The newspapers offices were destroyed and all its records lost. Forced to publish in Vancouver for the next year, on Oct. 8, 1898 the daily issues recommenced after the fire. The newspaper returned to New Westminster the following year. On Sept. 9, 1899 the newspaper moved into a building at Victoria Gardens, on the corner of Sixth Avenue and Clarkson. In 1900, a group of local citizens with the help of Richard McBride, another future premier, purchased the paper. Ownership of the paper was transferred from the five Kennedy brothers to the following new shareholders: G. E. Corbould, Fred Buscombe, Charles Wilson, T. S. Annandale, W. J. Mathers, J. W. Johnston and George V. Fraser. The new owners were shareholders in the Columbian Company Limited which was incorporated on May 17, 1900. The Kennedy brothers continued on the staff. In 1900, James Davis JD Taylor, a future MP and senator, was appointed as its managing editor (E). In 1902, JD Taylor became a shareholder. In April, 1906, J. D. Taylor became a director of the company. Subsequently, Taylor bought out the rest of the original shareholders. The Taylor family maintained ownership of the paper throughout the remainder of its history. For a time, the Columbian owned several other newspapers. In 1907, the company bought the Chilliwack Progress and operated until 1923. The Columbian also operated the Delta Times from 1909 to 1922.;C. Davis Taylor, J. D. Taylors only son, joined the paper in 1921. In 1924, he became a shareholder. In 1927, he became a director. At the time of his early death in 1940, he was the managing editor. In May, 1941, J. D. Taylor died at age 77. Subsequently, ownership of the Columbian Company was passed to his two daughters Miss Dorothy Taylor and Miss Mary L. Babe (Mrs. M. L. Emes), his daughter-in-law, Mrs. C. D. Taylor (Mrs. Walter Goodwin) and grandson, Richard D. Rikk Taylor. During WWII, there was only little or no growth as necessity and equipments were impossible; however, during the post WWII boom, the Columbian Company was able to expand its operations. Although during its early years, the newspaper was a political newspaper with several owners also being politician, the newspaper took a more independent line during its later period. The three successive editors were first, R. A. Mac McLellan, who retired in 1948. The next editor, Dorothy G. Taylor, daughter of Sen. J. D. Taylor, as also editor of the popular weekly edition of The Columbian that served the Fraser Valley until 1950. She resigned her position in 1954 and retired. I. E. Bill Hambly was editor from 1954. In 1972, the newspaper moved its operations to North Road in Coquitlam. In 1980, more than 200 staff member were working under the direction of R. D. Rikk Taylor. It was one of Canadas few remaining independent family-owned newspapers. In the early days, the circulation of the newspaper was only a few hundred copies. By 1941, daily circulation was 3,000. In the 1940s, the Columbian had reached 5,000 circulation and served only New Westminster. However, by 1964, the paper reached 22,000 circulation and served not just new Westminster, but neighbouring communities as well with five separate weekly editions: the Burnaby Columbian, the Coquitlam Columbian, the New Westminster Columbian and the Surrey Columbian, and Fraser Valley Columbian. In 1971, daily circulation was 36,000. In 1980, the daily press reached a high of 39,000. Including the affiliated Columbian weeklies, circulation reached 120,000. There were also community newspapers published under the name of Today from 1979 to 1983 for Burnaby, Coquitlam, Fraser Valley, New Westminster, and Surrey/North Delta. The Company also operated a commercial printing division, Craftsmen Printers. Circulation of the newspaper began to decline in the late seventies and burdened by increasing debt, the newspaper laboured to stay in business. A final attempt of the owners to raise more capital by selling a portion of their equity in the paper failed. Forced into bankruptcy, a receiver was appointed on October 11, 1983 to wind up the affairs of the business. The last issue of the newspaper was published on November 15, 1983. The Columbian Company was dissolved on November 10, 1988.

In 1929, Council noted that Blue Mountain School was no longer in condition to be used and that a new school be built at Smith Road, called Mountain View School. It is currently located at 740 Smith Ave, Coquitlam, British Columbia.

In 1889, the Ross, McLaren Mill was opened at Millside, an area near New Westminster, British Columbia. The mill had cost $350,000 to build, and was headed by President James McLaren, a Quebec timber investor and President of the Bank of Ottawa, and Vice-President Frank Ross. Production at the mill began in 1890. In addition to new facilities and a large amount of capital to support it, the mill also possessed the transportation benefits of frontage on the Fraser River and a spur line to the Canadian Pacific Railway system. However, despite these advantages, the mill soon faced several events that affected its production in a negative way. In addition to the death of McLaren, the mill also experienced a decreased demand for timber due to a general economic depression in 1892. Even when other mills began to recover in 1895, Ross, McLaren’s productivity was curtailed by the silting of the Fraser River, which made it impossible for large vessels to reach the mill.

All of these factors contributed to the company’s decision in 1899 to place the mill and its timber rights up for sale. An American investment syndicate, headed by Lester David of Seattle and Mr. Jenkins of Minneapolis eventually purchased the mill in 1903. The new owners sought to resolve the mill’s difficulties by dyking the area, and holding the federal government accountable for dredging the Fraser River channel and ensuring its accessibility to ships. Now called Fraser River Saw Mills, the mill was finally re-opened in 1905, as the largest mill in the Pacific Northwest. By 1906, the mill was already setting records for production levels and over 250 labourers were employed. As a result of the increased production levels and staff, both the mill and Millside were expanded; this included the construction of the Fraser Mills Sash, Door & Shingle Company Limited.

Production at the mill was so high by 1907, in fact, that the mill was nearly shut down due to a lack of available labour. The mill was taken over by an investment syndicate headed by A.D. McRae of Winnipeg and Senator Peter Jansen of Nebraska. The new owners instituted a major re-organization of the business. A half million dollar renovation and expansion of the original mill buildings was implemented and improvements made to increase transportation access to the mill via the Fraser River. The name of the town was changed from Millside to Fraser Mills.

The re-organization of the business culminated in 1910, with the purchase of enough timber rights in the Lower Mainland and on Vancouver Island for the company, now called the Canadian Western Lumber Company Limited, to be considered to have the largest private holdings in the world. Through direct or indirect purchase, the Canadian Western Lumber Company Limited acquired full or partial ownership of the following companies by 1916: Canadian Tugboat Company Limited; Coast Lumber & Fuel Company Limited; Coast Lumber Yards Limited; The Columbia River Company Limited; Columbia Western Lumber Yards Ltd.; Comox Logging and Railway Company; Crown Lumber Company, Limited; Fraser Mills Sash, Door, and Shingle Company Limited; Lumber Manufacturers’ Yard Limited; Security Lumber Company Limited.; and Western Canada Sawmill Yards Limited. Later acquisitions include The Golden Light, Power and Water Company Limited. In 1954, the Canadian Western Lumber Company, Limited was acquired by Crown Zellerbach Canada Limited. The immediate successor company to Crown Zellerbach Canada Limited was Fletcher Challenge Limited of New Zealand, which purchased the company in 1983 and, with further acquisitions, became Fletcher Challenge Canada Limited in 1987. In 2000, Norske Skog, a Norwegian paper company, acquired all of Fletcher Challenge's pulp and paper assets, and a majority interest in Fletcher Challenge Canada Limited. This resulted in the formation of Norske Skog Canada Limited.

Coquitlam Heritage Society officially registered as a non-profit on September 25, 1984. They began operating in the lower level (basement) of Mackin House in June 1993. The initial objectives of the CHS were to restore Mackin House and turn it into a heritage house museum. The renovations were completed in 1999 and CHS opened Mackin House Museum to the public.

Today, CHS offers numerous services to Coquitlam’s residents. In addition to yearly exhibits in Mackin House, the CHS offers seasonal tours of the Fraser Mills Train Station and CP Rail 1970’s Caboose in Heritage Square. They also operate year-round as a Tourism Information centre for the City of Coquitlam. Yearly exhibits in Mackin House run from September to June. They also set up rotating exhibits across the community and provide a variety of events and workshops for all ages.

The CHS's collection includes local artifacts of importance as well as the oral histories of community members. Their mission is to preserve, honour and promote Coquitlam’s heritage.

The Audio-Visual Department at Essondale was officially established in 1947. Essondale Hospital had a single silent 35 mm film projector and sound and film projector during the 1920s and 1930s, and held weekly dances on an amplified phonograph as early as 1938. In 1940, two 35 mm sound on film projectors were installed on ward A2 in West Lawn. During this period, audio-visual equipment was largely used for patient enjoyment.

In 1946, audio-visual equipment for educational, clinical, and recreational purposes was organized at Essondale under Guy H. Walker, the head of the audio-visual department. At this time, they acquired 16mm films to show on wards for patients who could not attend films in ward A2. They also managed still projectors for slides and transparencies. In 1947, the department had three staff members and held regular picture schedules. They began collecting a 16mm library of both educational and recreational videos. Additionally, they had a phonograph record library and wired sound equipment into patient dining rooms, the lawns, and airing courts.

In 1948, the department acquired a still camera and fully-equipped darkroom for producing slides and prints. The audio-visual department began documenting all aspects of the hospital through their photography program and printed photographs in-house.

In 1953, the department moved to Pennington Hall where, for the first time, they had the advantages of an adequate auditorium for screening films. They countined programming wired music and radio across buildings and on the lawns and even extended their range out to the Riverside Unit at Colony Farm.

In 1966, the department became incorporated into the Industrial Therapy Department in order to consolidate their resources in one location. It was then known as the Audio-Visual Division.

The Coquitlam Star newspaper and publishing company were active between 1911–1915.

The Westwood Plateau Community Association was formed in 1999 when the Westwood Plateau development was completed by Wesbild. A group of residents wanted to maintain a high quality of life on the Plateau and wished to see it be a safe and environmentally friendly place. A Mission Statement and Constitution were created and on April 17, 1999 elections were held for the first Directors of the newly created Westwood Plateau Community Association (WPCA).

Since its inception, the WPCA has sponsored a number of community events including garage sales, golf tournaments, public meetings, picnics, community dinners, and have prepared a community newsletter. The Association also involves itself in advocacy efforts for issues relating to Plateau residents. A major project of the association was the erection of a Reader Board at the corner of Johnston and David Avenue. The board enables the Association to keep residents informed of events.

Croton Studio of New Westminster was established by brothers Don F. and Roy M. LeBlanc. In 1947 Don LeBlanc and his wife Dorothy arrived in New Westminster, and took up residence at 1011 Eighth Avenue. In 1948 Roy and his wife Violet joined him there. Croton Studio first appears in 1949, located at 911 Twelfth Street. One or both of the brothers were owners of the business at this time. Around 1960 the studio moved to 7155 Kingsway in Burnaby. By 1967 the business had been incorporated and the name changed to Croton Studios Ltd. Don LeBlanc was owner and had moved his residence to 116 East Sixth Avenue. In 1972 a Croton photographer, Bob Dibble, bought the business when Don LeBlanc retired. Dibble owned the business until his death in 1979.

In 1889, the Ross, McLaren Mill was opened at Millside, an area near New Westminster, British Columbia. The mill had cost $350,000 to build, and was headed by President James McLaren, a Quebec timber investor and President of the Bank of Ottawa, and Vice-President Frank Ross. Production at the mill began in 1890. In addition to new facilities and a large amount of capital to support it, the mill also possessed the transportation benefits of frontage on the Fraser River and a spur line to the Canadian Pacific Railway system. However, despite these advantages, the mill soon faced several events that affected its production in a negative way. In addition to the death of McLaren, the mill also experienced a decreased demand for timber due to a general economic depression in 1892. Even when other mills began to recover in 1895, Ross, McLaren’s productivity was curtailed by the silting of the Fraser River, which made it impossible for large vessels to reach the mill.

All of these factors contributed to the company’s decision in 1899 to place the mill and its timber rights up for sale. An American investment syndicate, headed by Lester David of Seattle and Mr. Jenkins of Minneapolis eventually purchased the mill in 1903. The new owners sought to resolve the mill’s difficulties by dyking the area, and holding the federal government accountable for dredging the Fraser River channel and ensuring its accessibility to ships. Now called Fraser River Saw Mills, the mill was finally re-opened in 1905, as the largest mill in the Pacific Northwest. By 1906, the mill was already setting records for production levels and over 250 labourers were employed. As a result of the increased production levels and staff, both the mill and Millside were expanded; this included the construction of the Fraser Mills Sash, Door & Shingle Company Limited.

Production at the mill was so high by 1907, in fact, that the mill was nearly shut down due to a lack of available labour. The mill was taken over by an investment syndicate headed by A.D. McRae of Winnipeg and Senator Peter Jansen of Nebraska. The new owners instituted a major re-organization of the business. A half million dollar renovation and expansion of the original mill buildings was implemented and improvements made to increase transportation access to the mill via the Fraser River. The name of the town was changed from Millside to Fraser Mills.

The re-organization of the business culminated in 1910, with the purchase of enough timber rights in the Lower Mainland and on Vancouver Island for the company, now called the Canadian Western Lumber Company Limited, to be considered to have the largest private holdings in the world. Through direct or indirect purchase, the Canadian Western Lumber Company Limited acquired full or partial ownership of the following companies by 1916: Canadian Tugboat Company Limited; Coast Lumber & Fuel Company Limited; Coast Lumber Yards Limited; The Columbia River Company Limited; Columbia Western Lumber Yards Ltd.; Comox Logging and Railway Company; Crown Lumber Company, Limited; Fraser Mills Sash, Door, and Shingle Company Limited; Lumber Manufacturers’ Yard Limited; Security Lumber Company Limited.; and Western Canada Sawmill Yards Limited. Later acquisitions include The Golden Light, Power and Water Company Limited. In 1954, the Canadian Western Lumber Company, Limited was acquired by Crown Zellerbach Canada Limited. The immediate successor company to Crown Zellerbach Canada Limited was Fletcher Challenge Limited of New Zealand, which purchased the company in 1983 and, with further acquisitions, became Fletcher Challenge Canada Limited in 1987. In 2000, Norske Skog, a Norwegian paper company, acquired all of Fletcher Challenge's pulp and paper assets, and a majority interest in Fletcher Challenge Canada Limited. This resulted in the formation of Norske Skog Canada Limited.

Riverview Hospital was a Canadian mental health facility in Coquitlam, British Columbia. It operated as the Province’s specialized psychiatric hospital from 1913 until it closed in 2012. The hospital is located on sumiqwuelu, or in Halkomelem language, the Place of the Great Blue Heron, where Kwikwetlem First Nation took shelter for thousands of years. By the beginning of the 20th century, traditional healing knowledge in the area was supplanted by settler colonial medical practice.

Riverview Hospital was operated directly by the Province, originally under the Insane Asylums Act (1873), the Mental Hospitals Act (1940), and the Mental Health Act (1964) until 1988. A re-evaluation of contemporary approaches to mental health care through the 1960s to the mid-1980s brought about change to mental health service development in British Columbia. The Province created the British Columbia Mental Health Society (BCMHS) in 1988 and gave it the task of running Riverview pursuant to provincial health legislation. The BCMHS board began as Provincially-appointed trustees but by 1992, it was replaced by a community-based board of governors. After the establishment of the Provincial Health Services Authority (PHSA) in 2001, Riverview Hospital fell under the jurisdiction of its Mental Health & Addiction Services (now the BC Mental Health & Substance Use Services).

In 1904, the Province purchased 1,000 acres in Coquitlam for the construction of a new mental hospital (as well as Colony Farm) due to overcrowding at the Royal Hospital in Victoria and the Public Hospital for the Insane in New Westminster. Originally called the Hospital for the Mind at Mount Coquitlam, the hospital was named Essondale Hospital in honour of Dr. Henry Esson Young shortly after its opening. Young was the Provincial Secretary and Minister of Education and was responsible for establishing and managing the hospital.

The first building, West Lawn (then, the Male Chronic Wing) opened in 1913 to serve male patients. The patient population grew rapidly and soon led to more overcrowding. In 1922 the Boys’ Industrial School of Coquitlam (BISCO) opened to provide education, industrial training, and juvenile reform to boys sentenced to confinement by law. To accommodate more patients, Centre Lawn (then, the Acute Psychopathic Unit) opened in 1924. In 1930, East Lawn (then, the Female Chronic Unit) opened to ease crowding of female patients at the Public Hospital for the Insane in New Westminster.

After the First World War, more spaces for war veterans were needed in British Columbia. Thus a new Veteran's Unit opened at Essondale Hospital in 1934. In 1936, BISCO was moved; the school underwent renovation and reopened as a geriatric care unit called the Home for the Aged (later, Valleyview). This unit was administered under the Provincial Home for the Aged Act (1935). After the Second World War, veterans were moved to the Riverside unit on Colony Farm grounds. The original Veteran’s Unit expanded and became the Crease Clinic of Psychological Medicine, which opened in 1949 and operated under separate health legislation than Essondale Hospital. The Crease Clinic allowed for voluntary admission of patients who could terminate their hospitalization at will. In 1950, Essondale Hospital changed its name to Provincial Mental Hospital, Essondale. North Lawn (then, the Tuberculosis Unit) opened in 1955 to stem the spread of the tuberculosis common in the hospital's other units. By 1956 there were over 4,700 patients at the Provincial Mental Hospital, Essondale, the Crease Clinic, and the Home for the Aged combined.

In 1959 the charge of mental health services was transferred from the Provincial Secretary to the new Department of Health Services and Hospital Insurance. That year, the Valleyview geriatric care unit opened. Five years later in 1964, the British Columbia Mental Health Act was enacted. The Crease Clinic amalgamated with Essondale Provincial Mental Hospital in 1965 to function as one facility named Riverview Hospital. That same year, the Riverside unit was converted to a maximum security facility and was renamed the Forensic Psychiatric Institute.

From the 1960s to the 1980s Riverview Hospital began to face changes because of deinstitutionalization. Patient populations declined at Riverview Hospital due to a move toward outpatient care and community based centres for mental health services. Although Riverview Hospital was given formal status as a teaching hospital affiliated with the University of British Columbia in 1974, by 1981 patient population had dropped and parts of the hospital were closed and sold off to developers. In 1983, West Lawn closed and farming operations at Colony Farm were discontinued. Next followed twenty years of unit closures: Crease Clinic (1992), East Lawn (2005), North Lawn (2007), and in 2012, the last patients were moved from Centre Lawn. That year Riverview Hospital ceased its operations.

Currently, the Riverview Lands are home to three lodges where long-term intensive psychological rehabilitation is provided for individuals, administered through Fraser Health’s Mental Health network of services.

Peregrine Photographics was a photo studio at 35-Sixth St., New Westminster, British Columbia.

Established in 1999, the Dogwood Lifewriters' Group is a seniors group of around twenty core members that meets every fourth Monday at the Dogwood Pavilion seniors centre. It began as a course taught by Russell Hellard to help seniors write their memoirs. The group comes together to share life stories, write personal histories of place, and preserve family history. The stories are periodically published by the Group.

Road & Motor Sport Magazine reported on races held at Westwood Racing Circuit.

Selkirk Remote Sensing Ltd. was an aerial survey and mapping firm based in Richmond, British Columbia.

The Coquitlam River Watershed Roundtable (CRWRt) came about as the successful outcome of a multi-phase watershed strategy (2007-2011) aimed at improving collaboration and problem-solving amongst the many stakeholders in the watershed. The Coquitlam River Watershed Roundtable was launched in February 2011 at an inaugural meeting of watershed partners and the community.

The Dominion Photo Company was a commercial photography firm established in Vancouver in 1914 by Percy Bentley. The company was involved in photojournalism, theatre slides, timber surveying photographs, police photography, postcards, amateur developing and printing, commercial/industrial work, and portraiture.

Operated by Paul Seligman (1913-1914); H. Charlton and H. Rathbun (1915-1920); and C.B. Wand (1921-1922).

Trinity was a UK newspaper company founded in 1832. It merged with the Mirror to become Trinity Mirror PLC in 1999. In 2015, the company purchased Local World and became the United Kingdom's largest newspaper company. Trinity Mirror purchased the publishing assets of Northern & Shell in 2018 and changed its name to Reach plc.

Over the decades, the company owned many large regional and national newspapers in the United Kingdom and eventually expanded into the North American market. Trinity ran a collection of Canadian community newspapers under its North American subsidiary, Trinity (NA) Holdings, until 1997 when it sold 33 Canadian newspapers to Black Press.

The Greater Vancouver Transit System provided bus, SeaBus, and Skytrain service in the Metro Vancouver area as GVTS from 1973 until 1983. It operated under contract by the British Columbia Hydro and Power Authority until March 31, 1980. In the 1970s, the system was commonly still referred to by the general public as BC Hydro Transit (or the "Hydro Buses").

On April 1, 1980, GVTS was operated by the Metro Transit Operating Company and was branded commonly as Metro Transit. In 1983, the system was renamed the Vancouver Regional Transit System. From 1983 until 1999, the system was generally referred to as BC Transit. VRTS continued operation until April 1, 1999, when it was taken over by The South Coast British Columbia Transportation Authority, now known as Translink.

The Green Book (Enterprises) Inc. developed directories or "green books" compiling contact information for businesses and services for Coquitlam, Port Coquitlam, and Port Moody.