Sia reviews

3.6

66% would recommend to a friend

(565 total reviews)
avatar

Matthieu Courtecuisse

73% approve of CEO

45% positive business outlook

Sia has an employee rating of 3.6 out of 5 stars, based on 565 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Sia employee rating is in line with the average (within 1 standard deviation) for employers within the Management et conseil aux entreprises industry (3.7 stars).

Reviews by job title

565 reviews
2.0
Jan 28, 2026
Recommend
CEO approval
Business Outlook

Pros

It’s a job. You get money. For certain Business Lines, your client projects are determined for you (promos you have client work and are fully staffed, con is you get minimal say in which projects you interview for)

Cons

Constant change for HR systems/policies and job requirements. Every level is expected to sell AI (the proprietary tool which is inferior to others) and do internal publication (they say these are optional but you can’t get max bonus if you don’t participate enough). Lots of dropped internal initiatives with no formal end or follow up. A THREE YEAR leadership program which attrition causes most people to drop out of and is only mandatory for some leadership? 2026 cost of living increase was NOT blanket, a couple titles were excluded like our money doesn’t matter as much. No support for additional education.

2.0
Jan 28, 2026

Pick somewhere else

Recommend
CEO approval
Business Outlook

Pros

None remain. Strong positioning with acquisitions but that capital only ends up lining the C-suite pockets; you will not see any investment towards existing operational efficiency or rewards/compensation.

Cons

Disengaged, lackluster roster of partners in almost every business unit. No clear focus on any operational objectives. Steadily watched the quality of the company decline and contracts shrink over the course of ~5 years. Absolutely zero charisma exhibited by the partners.

4.0
Jan 27, 2026

Good Culture

Recommend
CEO approval
Business Outlook

Pros

friendly and good culture within collegues

Cons

the type of projects could be boring

Viewing 16 - 18 of 565 Reviews

Glassdoor has 1,391 Sia reviews submitted anonymously by Sia employees. Read employee reviews and ratings on Glassdoor to decide if Sia is right for you.