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UK · EMEA · Main (Premium/Standard)
London Stock Exchange — Main Market
LSEG · London · GBP
Global index prestige and broad ESG-mandate demand; reformed single-segment regime.
Eligibility · Meridian Renewables (example)
Eligible
Meets listing standards; 1 governance action(s) to close before filing.
Min market cap
$38M
admission floor
Min free float
10%
public hands
Est. all-in
5.1%
on $700M
Time to list
20–24w
from kickoff
Regulator
FCA
oversight
Eligibility check
✓
Market capitalisation
Requirement: ≥ $38M
$4.8B
✓
Free float
Requirement: ≥ 10%
~15%
✓
Operating history
Requirement: ≥ 3 yrs
11 yrs
✓
Profit / revenue test
Requirement: Revenue track (post-2024 reform)
Profitable
!
Governance standard
Requirement: UK Corp Gov Code
Gaps
✓
Accounting
Requirement: IFRS / UK-adopted
IFRS
Rules as of 2026-Q2 · source: UK Listing Rules (UKLR) (FCA, UK). Compiled summary — validate against the primary source before filing.
Fees & cost
Est. all-in · $700M raise$36M 5.1%
Underwriting spread3.9% · $27M
Initial listing fee£0.5M
Annual fee£6k+
Legal · audit · IR · other$8.6M
Total all-in$36M (5.1%)
Market quality & investors
Liquidity★★★☆☆
Analyst coverage★★★★☆
Retail participation★★☆☆☆
Institutional depth★★★★☆
Index inclusion
FTSE 100FTSE 250
Aftermarket: +8% avg first-day
Process & sectors
Typical time-to-list20–24w
RegulatorFCA
Dual / secondary listingSupported
Min public shareholders—
Sector strength
FinancialsEnergyMiningRenewables
Notable listings: SSE, Greencoat UK Wind
Model LSE Main in the Decision Center ▸Compare venues
London Stock Exchange — Main Market IPO Listing Requirements & Cost · IPOQB