Shares and shareholders

Largest shareholders, Dec. 31, 2007	% of votes	% of Series K Shares	% of Series A Shares	% of total shares

Finnish Academy of Science and Letters	21.7	25.8	3.1	7.3
Novametor Oy	12.7	13.5	9.4	10.1
Voipio Mikko	7.7	8.8	2.2	3.4
Caspers Anja	7.0	8.3	1.3	2.6
Voipio Raimo	5.8	6.7	1.7	2.6
Voipio Tauno	4.2	4.6	2.0	2.5
Henki-Sampo Insurance Company	4.1	4.0	4.2	4.2
Voipio Inkeri	2.2	0.0	12.3	10.0
Luokkanen Minna	2.0	2.4	0.1	0.5
V�is�l� Jaakko estate	1.6	1.8	1.1	1.2
Ilmarinen Mutual Pension Insurance Company	1.5	0.0	8.4	6.8
Laasonen Tuulikki	1.3	1.6	0.0	0.3

Nominee registered	4.0	0.0	22.6	18.4

Ownership structure by owner type, Dec. 31, 2007	Number of owners	% of votes	% of Series K Shares	% of Series A Shares	% of total shares

Companies	182	13.1	13.5	11.6	12.0
Financial and insurance institutions	18	4.9	4.0	8.7	7.8
Municipalities	11	2.0	0.0	11.2	9.1
Non-profit organizations	71	22.1	25.8	5.4	9.2
Private individuals	3,917	53.6	56.7	39.2	42.5
Outside Finland and nominee registered	33	4.3	0.0	23.8	19.4
Not transferred to the book-entry system		0.0	0.0	0.1	0.0

Total	4,232	100.0	100.0	100.0	100.0

Ownership structure by shareholding, Dec. 31, 2007
Number of shares	Owners	% of owners	% of votes	% of total shares.	owners of K shares	% of K shares	owners of A shares	% of A shares
1-100	1,488	35.2	0.1	0.5	2	0.0	1,489	0.6
101-1000	2,312	54.6	1.1	4.5	18	0.3	2,309	5.5
1001-10000	343	8.1	2.9	5.2	26	3.9	336	6.3
10001-100000	68	1.6	18.2	12.9	23	24.1	60	12.7
100001-	21	0.5	77.7	76.8	7	71.7	18	74.9

Not transferred to the book-entry system	-	-	0.0	0.0	-	0.0	-	0.1

Total	4,232	100.0	100.0	100.0	76	100.0	4,212	100.0

Vaisala Oyj's Board of Directors held and controlled 1,394,601 shares on 31 December 2007, accounting for 16.6% of the total votes (2006: 1,353,101 shares and 16.5% of the total votes).