How to counter Tinker

In lane

Night Stalker
• Tinker's biggest weakness is getting jumped and Night Stalker likes to buy Blink Dagger. • Night Stalker can spot a Tinker easily with Dark Ascension. • Crippling Fear makes sure Tinker cannot use any of his spells or Blink Dagger. This forces him to buy Black King Bar or Force Staff and he does not like to buy either usually. • Crippling Fear and Void (in night time) can interrupt his last resort Keen Conveyance.
Anti-Mage
• Tinker's biggest weakness is getting jumped and Anti-Mage can do it easily with Blink. • Most of Tinker's damage is magical and Anti-Mage has magic resistance with Counterspell. • Anti-Mage can Counterspell to reflect Laser and Warp Flare. • Tinker has a huge mana pool making him a great target for Mana Void.
Visage
• Tinker's biggest weakness is getting jumped. Visage can hunt him down with Silent as the Grave especially with Aghanim's Scepter. • Visage can solo-kill Tinker with his Summon Familiars and their Stone Form chainstun.
Shadow Shaman
• Tinker's biggest weakness is getting jumped and Shadow Shaman likes to buy Blink Dagger. • Shadow Shaman has two disables in the form of Hex and Shackles to lock down Tinker.
Nyx Assassin
• Nyx Assassin is a good stalker for Tinker since he likes to play on sidelanes and farm triangle. • Nyx Assassin can stun Tinker by walking over his March of the Machines with Spiked Carapace. • Tinker has a huge mana pool making him a great target for Mind Flare.

Blink Dagger
• Buy this item to jump Tinker.
Scythe of Vyse
• Instant disable is always the best answer to heroes that like to be mobile and slippery.
Orchid Malevolence
• Silence is a good item to deal with Tinker as he relies on using his spells.