diff --git a/.gitignore b/.gitignore
index e5ddf76..93a8447 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@
 *.exe~
 .env
 secret.json
+*.json
 /exe/
diff --git a/cmd/amocli/getlead.go b/cmd/amocli/getlead.go
index a7d5a6d..7507263 100644
--- a/cmd/amocli/getlead.go
+++ b/cmd/amocli/getlead.go
@@ -1,6 +1,5 @@
 package main
 
-
 import "surdeus.su/core/amo"
 import "surdeus.su/core/ss/urlenc"
 import "surdeus.su/core/cli/mtool"
diff --git a/cmd/amocli/main.go b/cmd/amocli/main.go
index 1512b61..f9f9791 100644
--- a/cmd/amocli/main.go
+++ b/cmd/amocli/main.go
@@ -9,4 +9,5 @@ func main() {
 
 var tool = mtool.T("amocli").Subs(
 	getLead,
+	updateLead,
 )
diff --git a/cmd/amocli/updatecom.go b/cmd/amocli/updatecom.go
new file mode 100644
index 0000000..2a9d4f5
--- /dev/null
+++ b/cmd/amocli/updatecom.go
@@ -0,0 +1,42 @@
+package main
+
+import "surdeus.su/core/amo"
+import "surdeus.su/core/cli/mtool"
+import "surdeus.su/core/amo/companies"
+import "encoding/json"
+import "log"
+import "os"
+
+var updateLead =
+mtool.T("update-companies").Func(func(flags *mtool.Flags){
+	var (
+		secretPath string
+	)
+
+	flags.StringVar(
+		&secretPath,
+		"secret",
+		"",
+		"path to JSON file with AMO CRM secrets",
+		"AMO_SECRET",
+	)
+
+	flags.Parse()
+
+	client, err := amo.NewClient(secretPath)
+	if err != nil {
+		log.Fatalf("NewAmoClient(...): %s\n", err)
+	}
+
+	cs := []companies.Company{}
+	dec := json.NewDecoder(os.Stdin)
+	err = dec.Decode(&cs)
+	if err != nil {
+		log.Fatalf("json.Decode(...): %s\n", err)
+	}
+
+	err = client.UpdateCompanies(cs)
+	if err != nil {
+		log.Fatalf("client.UpdateCompanies(...): %s\n", err)
+	}
+})
diff --git a/companies.go b/companies.go
index bc1b2ae..df17c1e 100644
--- a/companies.go
+++ b/companies.go
@@ -5,13 +5,13 @@ import "surdeus.su/core/amo/companies"
 import "fmt"
 
 func (client *Client) GetCompany(
-	companyId int,
+	companyID int,
 	opts ...urlenc.Builder,
 ) (*companies.Company, error) {
 	deal := new(companies.Company)
 	resource := fmt.Sprintf(
 		"/api/v4/companies/%d?%s",
-		companyId,
+		companyID,
 		urlenc.Join(opts...),
 	)
 
@@ -27,7 +27,24 @@ func (client *Client) UpdateCompany(
 ) error {
 	return client.updateEntity(
 		"/api/v4/companies",
-		company.Id,
+		company.ID,
 		company,
 	)
 }
+
+func (client *Client) UpdateCompanies(
+	cs []companies.Company,
+) error {
+	//ret := []companies.Company{}
+	err := client.API.Patch(
+		"/api/v4/companies",
+		cs,
+		nil,
+	)
+
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
diff --git a/companies/companies.go b/companies/companies.go
index fcdbf7e..688c158 100644
--- a/companies/companies.go
+++ b/companies/companies.go
@@ -3,19 +3,19 @@ package companies
 import "surdeus.su/core/amo/common"
 
 type Company struct {
-	Id                 int                        `json:"id"`
-	Name               string                     `json:"name,omitempty"`
-	ResponsibleUserId  int                        `json:"responsible_user_id,omitempty"`
-	GroupId            int                        `json:"group_id,omitempty"`
-	CreatedBy          int                        `json:"created_by,omitempty"`
-	UpdatedBy          int                        `json:"updated_by,omitempty"`
-	CreatedAt          int                        `json:"created_at,omitempty"`
-	UpdatedAt          int                        `json:"updated_at,omitempty"`
-	ClosestTaskAt      interface{}                `json:"closest_task_at,omitempty"`
+	ID int `json:"id"`
+	Name string `json:"name,omitempty"`
+	ResponsibleUserID int `json:"responsible_user_id,omitempty"`
+	GroupID int `json:"group_id,omitempty"`
+	CreatedBy int `json:"created_by,omitempty"`
+	UpdatedBy int `json:"updated_by,omitempty"`
+	CreatedAt int `json:"created_at,omitempty"`
+	UpdatedAt int `json:"updated_at,omitempty"`
+	ClosestTaskAt interface{} `json:"closest_task_at,omitempty"`
 	CustomFieldsValues []common.CustomFieldsValue `json:"custom_fields_values,omitempty"`
-	AccountId          int                        `json:"account_id,omitempty"`
-	Links              Links                      `json:"_links,omitempty"`
-	Embedded           Embedded                   `json:"_embedded,omitempty"`
+	AccountID int `json:"account_id,omitempty"`
+	Links Links `json:"_links,omitempty"`
+	Embedded Embedded `json:"_embedded,omitempty"`
 }
 
 type Self struct {
@@ -27,10 +27,10 @@ type Links struct {
 }
 
 type Contacts struct {
-	Id int `json:"id"`
+	ID int `json:"id"`
 }
 
 type Embedded struct {
-	Tags     []interface{} `json:"tags"`
-	Contacts []*Contacts   `json:"contacts"`
+	Tags []interface{} `json:"tags"`
+	Contacts []*Contacts `json:"contacts"`
 }
diff --git a/leads.go b/leads.go
index d258eb1..5346f96 100644
--- a/leads.go
+++ b/leads.go
@@ -40,13 +40,13 @@ func (client *Client) GetLeads(
 
 // Get lead with the specified ID.
 func (client *Client) GetLead(
-	leadId int,
+	leadID int,
 	opts ...urlenc.Builder,
 ) (*leads.Lead, error) {
 	deal := new(leads.Lead)
 	resource := fmt.Sprintf(
 		"/api/v4/leads/%d?%s",
-		leadId,
+		leadID,
 		urlenc.Join(opts...).Encode(),
 	)
 
@@ -57,6 +57,6 @@ func (client *Client) GetLead(
 func (client *Client) UpdateLead(
 	lead *leads.Lead,
 ) error {
-	return client.updateEntity("/api/v4/leads", lead.Id, lead)
+	return client.updateEntity("/api/v4/leads", lead.ID, lead)
 }
 
diff --git a/leads/leads.go b/leads/leads.go
index f30d10a..345986c 100644
--- a/leads/leads.go
+++ b/leads/leads.go
@@ -3,15 +3,15 @@ package leads
 import "surdeus.su/core/amo/common"
 
 type Lead struct {
-	Id int `json:"id"`
+	ID int `json:"id"`
 	Name string `json:"name,omitempty"`
 	Price int `json:"price,omitempty"`
-	ResponsibleUserId int `json:"responsible_user_id,omitempty"`
-	GroupId int `json:"group_id,omitempty"`
-	StatusId int `json:"status_id,omitempty"`
-	PipelineId int `json:"pipeline_id,omitempty"`
-	LossReasonId int `json:"loss_reason_id,omitempty"`
-	SourceId interface{} `json:"source_id,omitempty"`
+	ResponsibleUserID int `json:"responsible_user_id,omitempty"`
+	GroupID int `json:"group_id,omitempty"`
+	StatusID int `json:"status_id,omitempty"`
+	PipelineID int `json:"pipeline_id,omitempty"`
+	LossReasonID int `json:"loss_reason_id,omitempty"`
+	SourceID interface{} `json:"source_id,omitempty"`
 	CreatedBy int `json:"created_by,omitempty"`
 	UpdatedBy int `json:"updated_by,omitempty"`
 	CreatedAt int `json:"created_at,omitempty"`
@@ -21,7 +21,7 @@ type Lead struct {
 	IsDeleted bool `json:"is_deleted,omitempty"`
 	CustomFieldsValues []common.CustomFieldsValue `json:"custom_fields_values,omitempty"`
 	Score interface{} `json:"score,omitempty"`
-	AccountId int `json:"account_id,omitempty"`
+	AccountID int `json:"account_id,omitempty"`
 	IsPriceModifiedByRobot bool `json:"is_price_modified_by_robot,omitempty"`
 	Links Links `json:"_links,omitempty"`
 	Embedded Embedded `json:"_embedded,omitempty"`
@@ -36,22 +36,22 @@ type Links struct {
 }
 
 type Tags struct {
-	Id int `json:"id"`
+	ID int `json:"id"`
 	Name string `json:"name"`
 }
 
 type Metadata struct {
 	Quantity int `json:"quantity"`
-	CatalogId int `json:"catalog_id"`
+	CatalogID int `json:"catalog_id"`
 }
 
 type CatalogElements struct {
-	Id int `json:"id"`
+	ID int `json:"id"`
 	Metadata Metadata `json:"metadata"`
 }
 
 type LossReason struct {
-	Id int `json:"id"`
+	ID int `json:"id"`
 	Name string `json:"name"`
 	Sort int `json:"sort"`
 	CreatedAt int `json:"created_at"`
@@ -60,12 +60,12 @@ type LossReason struct {
 }
 
 type Companies struct {
-	Id int `json:"id"`
+	ID int `json:"id"`
 	Links Links `json:"_links"`
 }
 
 type Contacts struct {
-	Id int `json:"id"`
+	ID int `json:"id"`
 	IsMain bool `json:"is_main"`
 	Links Links `json:"_links"`
 }