"active contributor" is an appropriate phrase for written English.
You can use this phrase when referring to someone who actively takes part in something, such as a project, class, or activity. For example, "Michael is an active contributor to our project, and his ideas have been invaluable."
Her marriage, however, has released her from her gendered responsibility to care for her mother and once the couple had children she began to extend her social networks across ethnic groups through participation at parents' activities at the school and is now an active contributor to its fundraising activities.
And you know that you were an active contributor to it".
She was a valued member of the National Arts Club and an active contributor to the Gramercy Neighborhood Association.
He was both an astute editor and an active contributor to its many volumes, providing stimulating papers, particularly in the areas of child development, research, and psychoanalytic treatment.
The Open Source Beehives (OSB) project, for example, has designed a project enabling anyone concerned with bee decline to become an active contributor towards finding a solution.
Mr. Saakashvili, who wrote his final paper for that class on humanitarian intervention, was the most active contributor in the class, Ms. Damrosch recalled.
Owing to their aggressive, intrinsically activated phenotype, RASF are active contributors in joint damage.
There are more than 75,000 "active contributors," many of whom remain anonymous.
Chambers of commerce and trial lawyers' groups were particularly active contributors in judicial election campaigns in many states.
Around one in four of 4Chan's 25 million monthly users are active contributors to the forum, according to Poole.
Mr. Stewart added that he had not received contributions from the Reid fund, but campaign finance records show that Mr. Reid and several family members were active contributors.
