TestDevLab vs Transition Technologies PSC

Short answer

TestDevLab scores 28.5 and ranks 5; Transition Technologies PSC scores 31.0 and ranks 4 of 12. They differ most on engagement longevity: Transition Technologies PSC 8.0, TestDevLab 0.0 out of 10. TestDevLab: No engagement length with a security vendor is stated in the verified evidence.

Eight dimensions side by side

Scores out of 10 from the frozen methodology. The difference column is A minus B.

Dimension	A: TestDevLab	B: Transition Technologies PSC	Difference (A minus B)
1. Security-product evidence depth	4.0	4.0	±0.0
2. Product-class coverage	2.0	2.0	±0.0
3. Test-type depth	2.0	2.0	±0.0
4. Engagement longevity	0.0	8.0	−8.0
5. Third-party review signal	0.0	0.0	±0.0
6. Vendor's own security posture	1.0	0.0	+1.0
7. Team scale and specialisation	9.0	4.0	+5.0
8. Transparency	5.0	5.0	±0.0

Security-product evidence side by side

TestDevLab

e-0057
case-studyCase study for Smart-ID, identity and access management
testdevlab.com · 2017-12-14 · B single source · verified 2026-11-11
Identity and access management; tests: compatibility; client: Smart-ID

Transition Technologies PSC

e-0050
case-studyCase study, identity and access management
ttpsc.com · 2026-02-05 · B single source · verified 2026-11-11
Identity and access management; tests: automation; team: 10; duration: 41 months; client not named
e-0051
case-studyCase study for OneSpan, identity and access management
ttpsc.com · 2022-12-09 · B single source · verified 2026-11-11
Identity and access management; tests: automation; duration: 34 months; client: OneSpan

Choose one or the other

Choose TestDevLab when

You want a QA-only company and a dedicated security-product QA page (team scale and specialisation, 9.0 against 4.0). TestDevLab: Headcount 250 to 999, 3 points; QA-only company, 3 points; dedicated security-product QA page, 3 points. [e-0058][e-0078][e-0059] Transition Technologies PSC: Headcount 1,000 to 9,999, 4 points; not QA-only, 0 points; no dedicated security-product QA page, 0 points. [e-0052][e-0077]

Choose Transition Technologies PSC when

You want an evidenced long engagement with a security vendor (engagement longevity, 8.0 against 0.0). Transition Technologies PSC: Longest evidenced engagement with a security vendor: 41 months. [e-0050] TestDevLab: No engagement length with a security vendor is stated in the verified evidence.

Next steps

Scores are computed from publicly available evidence as of the verifiedOn date on each item. They describe published evidence, not service quality. Re-verify with the vendor before contracting.