LSEG vs FactSet

LSEG and FactSet both land on Depends.

LSEG

lseg.com

Analyzed October 9, 2026

Depends

Confidence: Medium

Buy only if you run a bank, fund, or compliance team that genuinely needs exchange-grade market data or risk screening.

Read the full report

FactSet

factset.com

Analyzed September 25, 2026

Depends

Confidence: Medium

Buy only if you're an institutional finance team (asset management, banking, PE) that needs deep market data and can absorb negotiated per-seat contracts.

Read the full report

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LSEG versus FactSet
Compare	LSEG	FactSet
Verdict	Depends	Depends
Best for	Banks and trading desks	Buy-side analysts and asset managers
Who it's not for	Startups and small businesses	Individual or retail investors
Privacy	Troubled: hackers leaked 5.3M World-Check records (2024); Workspace outage and worldwide service disruptions also reported.^³	No known public vulnerabilities found in the sources reviewed.
Support quality	Public outages during market hours	No usable evidence
Public sentiment	Customer reviews are scarce; employee reviews are mixed . 67-68% recommend LSEG on Glassdoor, with titles ranging from 'Good company' to 'Toxic but great'.	Institutional users praise data depth and reliability, while Reddit users gripe about price and call the basics merely okay.
Biggest gotcha	Pricing is opaque enterprise contracts; expect sales negotiation and no self-serve trial	Expect a sales cycle and annual enterprise agreement, not checkout pricing¹⁶

Pick LSEG when

Banks and trading desks
Compliance and AML screening teams
Quant and academic finance researchers
Institutions needing ESG and market data

When LSEG is not a fit

Startups and small businesses
Casual investors wanting free stock quotes
Teams without budget for enterprise data contracts
Anyone wanting transparent, self-serve pricing

Pick FactSet when

Buy-side analysts and asset managers
Investment banks and PE firms
Fixed-income and risk teams
Enterprises consolidating market-data vendors

When FactSet is not a fit

Individual or retail investors
Startups and small teams
Anyone wanting self-serve, transparent pricing
Casual screening . use Koyfin or TradingView

Sources

LSEG: Financial Markets Infrastructure and Datalseg.com
official
LSEG Data & Analyticslseg.com
official
Hackers are threatening to leak World-Checktechcrunch.com
security
5.3M World-Check records may be leakedscworld.com
security
LSEG platform users report outage after Wall Street openreuters.com
security
Worldwide IT problems cause LSEG service disruptionsthinkmarkets.com
news
Bank of America taps LSEG data and analyticsfstech.co.uk
news
LSEG Workspace reviewsslashdot.org
review
LSEG employee reviews (Indeed)indeed.com
review
LSEG Glassdoor review . employee approvalglassdoor.com
review
LSEG £1bn share buybackleaprate.com
news
FactSet homepagefactset.com
official
Why Choose FactSetfactset.com
official
FactSet Pricing pagefactset.com
official
Vendr: FactSet pricing marketplacevendr.com
review
RFP.wiki: Vanguard vs FactSetrfp.wiki
review