Trends · data through September 2026

Japanese & Korean in Slough and Heathrow

Iceflower tracks 32 stores from 13 Japanese & Korean chains in Slough and Heathrow. Kokoro grew fastest over the last year, ahead of Wagamama and itsu.

Rankings come from real card and bank transactions across a panel of 130M+ US and EU consumers. We publish relative growth and rankings, never revenue figures. About the data

Tracked chains: 13
Tracked stores: 32
Consumer panel: 130M+

Growth ranking

Fastest-growing tracked Japanese & Korean chains

Ranked by year-over-year growth of share of tracked local spend. Arrows show movement in the rankings since last year. Each dot in the chart is one tracked chain: bigger market position to the right, faster growth higher up, more tracked stores in a bigger dot. Colors match the store map below. Kokoro and Wagamama sit in the high-growth half.

# Chain YoY growth

Rank	Chain	Rank movement	YoY growth
1	K Kokoro	-	+16.7%
2	W Wagamama	-	-11.5%
3	I itsu	-	-13.7%

itsu
Kokoro
Wagamama
YO! Sushi
Syon Lounge
Blue Orchid
Soya Weybridge
Other tracked chains

Store footprint

Store map

32 tracked store locations in Slough and Heathrow. The 7 largest tracked chains are highlighted.

itsu (5)
Kokoro (10)
Wagamama (6)
YO! Sushi (2)
Syon Lounge (1)
Blue Orchid (1)
Soya Weybridge (1)
Other tracked chains

Top tracked chains by store count

1 K Kokoro 10
2 W Wagamama 6
3 I itsu 5
4 Y YO! Sushi 2
5 S Syon Lounge 1
6 B Blue Orchid 1
7 S Soya Weybridge 1
8 I Ichiban 1
9 Y YO! Heathrow T3 1
10 D Diva 1
11 W Wasabi 1
12 K Kimiko 1
13 Y Yo Sushi 1

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