Updated in October 2025
Top Mobile App Development Companies in Seattle
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Company size
List of best mobile app developers in Seattle
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Seattle Leaders Board
1
Matellio
2
ThirstySprout
3
Innova
4
ChopDawg.com
5
Slashdev
6
Lunarbyte.io
7
New Normal
8
Groove Jones
9
UpTop
10
Montana Banana Web Development
11
Chop Dawg
12
9series Inc
1
Matellio
2
ThirstySprout
3
Innova
4
ChopDawg.com
5
Slashdev
6
Lunarbyte.io
7
New Normal
8
Groove Jones
9
UpTop
10
Montana Banana Web Development
11
Chop Dawg
12
9series Inc
Vendorland Scores & Parameters
| # | Company | Overall score | Category score | Clients & experience | Reviews | Brand recognition | Track record | Geo strategy | Focus % |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Matellio | 59 | 52 | 0 | 18 | 10 | 17 | 14 | 72 |
| 2 | ThirstySprout | 59 | 51 | 0 | 20 | 10 | 17 | 12 | 25 |
| 3 | Innova | 59 | 51 | 0 | 20 | 10 | 17 | 12 | 14 |
| 4 | ChopDawg.com | 59 | 50 | 0 | 18 | 10 | 17 | 14 | 80 |
| 5 | Slashdev | 59 | 48 | 0 | 20 | 10 | 17 | 12 | 20 |
| 6 | Lunarbyte.io | 58 | 48 | 0 | 20 | 10 | 17 | 11 | 30 |
| 7 | New Normal | 58 | 48 | 0 | 20 | 10 | 17 | 11 | 47 |
| 8 | Groove Jones | 58 | 47 | 0 | 19 | 10 | 17 | 12 | 22 |
| 9 | UpTop | 57 | 47 | 0 | 19 | 10 | 17 | 11 | 38 |
| 10 | Montana Banana Web Development | 57 | 46 | 0 | 19 | 10 | 17 | 11 | 11 |
| 11 | Chop Dawg | 56 | 47 | 12 | 18 | 5 | 3 | 14 | 60 |
| 12 | 9series Inc | 53 | 46 | 16 | 17 | 6 | 3 | 13 | 50 |