Resources : Options Data (Live and Historical)

AlgoSeek – Options
https://www.algoseek.com/equity-options/

Barchart / Commodity Research Bureau Data
https://www.barchart.com/cmdty/data

FirstRate Data – Option Chains :
FirstRate Data

CQG
http://www.cqg.com/products/historical-data
http://www.cqg.com/products/historical-data/cqg-data-factory

Commodity Systems Inc. CSI
http://www.csidata.com/

CBOE Options Data
https://datashop.cboe.com/options-data.

CBOE Historical Data.
https://www.cboe.com/services/analytics/hanweck/historical_data/

CME Market Data
https://www.cmegroup.com/market-data.html

Discount Option Data
https://www.discountoptiondata.com/

End of Day Data – EOD Data
https://www.eoddata.com/

Historical Option Data
https://www.historicaloptiondata.com/

IEX
https://iextrading.com/trading/market-data

Intrinio – Real time delayed options feeds
https://intrinio.com/options/options-realtime

IVolatility –
https://www.ivolatility.com/

MarketXLS –
https://marketxls.com

OPRA – Option Price Reporting Authority
https://www.opraplan.com/

Option Metrics
http://optionmetrics.com/data-products/

OptionsDX
https://www.optionsdx.com/

Orats http://www.orats.com/

Power Options
http://poweropt.com

Quantcha
http://quantcha.com

AlgoSeek
https://www.algoseek.com/

XIgnite
https://www.xignite.com/futures-and-options-price-quotes