The complete list of promoted teachers, including how counties divided the vacancies, was made public by the Teachers Service Commission (TSC).
With 690 teachers promoted, Machakos County received the largest portion of the promotion, whereas Garissa had the fewest promoted teachers (303).
Job ratings and the amount of employment assigned to each county varied on the list. Debate has been triggered by the contentious list of 25,252 teachers who were promoted on April 2.
The parliamentarians rejected the list presented in the national assembly, arguing that the promotion was prejudiced.
According to the commission, regardless of the volume of applications, the posts were similar with minor variations across counties.
The TSC released data of numbers for common cadre promotions and those promoted under affirmative action for the 202/25 financial year where 5,291 tutors, who were promoted across 47 Counties.
In this category the top beneficiaries were Isiolo County that received promotion of 282 teachers, Lamu 280 teachers and Mandera who received promotion of 270 teachers.
The counties that had the least promotions include Kiambu with 46 teachers, Nairobi 63, Muranga 63 and Elgeyo Marakwet and Laikipia that received 64 each.
The commission promotions were done from grade C2 to D5, with the larger number of promoted teachers being to grade C4 who had 8,508 promotions, followed by C5 that had 5,425.
Others were 4,971 (C3), 2,519 to D1, 1,445 to C2 and 1,410 to D3.
In executive level 799 teachers were promoted to D2, 128 promoted to D4 and a total of 47 promoted to D5.
TSC Chief Executive Officer Nancy Macharia said the promotions were done the right way according to the commission rules, noting that it was regionally balanced.
The CEO who appeared before the national assembly committee on education said the process strictly adhered to Regulation 72 of the code of regulations for teachers, the career progression guidelines and the policy on selection and appointment of the institutional administrators.
The committee chair MP Julius Melly said promotions were done against set rules, and were not biased.
He noted that some teachers were promoted three times in a row while others were still stuck in one job group for more than a decade, noting that the distribution ignored population dynamics.
The lawmakers will investigate what they called multiple promotion of newly employed teachers at the expense of others who were shortlisted, interviewed but have never been promoted for years.
The TSC was given until Thursday this week to provide a full list showing the teachers who have served in particular job groups before promotion and criteria used to promote the 25,252 teachers.
The Kenya Union of Post-Primary Education Teachers (KUPPET) Acting Deputy Secretary-General, Moses Nthurima, criticized the Commission for the skewed promotion process.
He said the criteria disadvantaged many educators; particularly in areas with many teachers’ demands.
Nthurima questioned promotion of teachers who have served for six months when the policy requires three years, he said TSC did not deploy matrix for promotion that include years of service, performance and academic qualifications.
The Union wrote to TSC who are yet to address their demands, the union has now cited lack of consultation by the teachers’ employer.
