TM Forum Reviews

3.4

60% would recommend to a friend

(53 total reviews)

Nik Willetts

50% approve of CEO

60% positive business outlook

TM Forum has an employee rating of 3.4 out of 5 stars, based on 53 company reviews on Glassdoor which indicates that most employees have a good working experience there. The TM Forum employee rating is in line with the average (within 1 standard deviation) for employers within the Telecommunications industry (3.6 stars).

Reviews by job title

53 reviews
1.0
20 May 2026

Toxic at the top

Anonymous employee
Recommend
CEO approval
Business outlook

Pros

- Some great people, who are passionate, care about members, their role and company.

Cons

- The company treats employees terribly. - Abuse is rife from the top, then covered up by Management Board, Leadership Community and HR. - Nepotism and favouritism. - CEO/Management Board/certain members of the Leadership Community and the HR team should be embarrassed for what they have let the company become. - Around 10 HR staff for a 150 person company - who spend their time covering up bad behaviour and shady practices. - Only a lucky few (for example Engagement Members or certain individuals in the CTO office) are respected by the SLT, most others are treated badly, and are miserable/depressed. - Arrogant, narcissist leadership - they think everyone is poor at their job, which in reality is the opposite. - Unless you are prepared to bow to certain leaders you have no status in the company. - The company is very quickly getting a very bad reputation externally. - Good people are regularly discarded without care. - The company values are not carried out by most at the top. - Everyone is disposable. - Revolving door in the past couple of years. - Loyalty and contributions irrelevant unless you are one of the chosen few. - Suspect reviews on Glassdoor - up until 20th January 2026 there had been around 30 total reviews in 11 years. Then 4, 5* reviews all appeared on the same day. Then after a few bad ones, an AI looking review will appear. Make of that what you will. - Culture of fear - an entire department was let go in September 2025, but not even mentioned. - Consistent redundancies at the end of each tax year,

1.0
11 May 2026

Circling the drain

Recommend
CEO approval
Business outlook

Pros

Abundance of hardworking and caring people at the mid-level manager position on down.

Cons

No value placed on employee loyalty; consitently looses their best talent. Sub-market level salaries that were once offset by great benefits. Always hiring blue sky thinkers who contribute little to nothing without consideration of the "grunts" who do all the work and keep the machine running. High turnover among staff. Overly bloated HR department of 10 people for a company with 150 employees. CEO who thinks he's King Charles. Rampant signs of waste, fraud and abuse. Increasingly toxic culture.

Viewing 1 - 3 of 53 Reviews

Glassdoor has 58 TM Forum reviews submitted anonymously by TM Forum employees. Read employee reviews and ratings on Glassdoor to decide if TM Forum is right for you.