GovCon Information Services: A List

I have not been able to find a comprehensive list of companies that provide databases to government contractors to find potential opportunities, so I'm starting the list here.

Many of these sources are reviewed here. This is a blog post which I will expand based on feedback from readers and additional research.

Deltek GovWin: Deltek's flagship service GovWin IQ is the largest and probably most comprehensive source, purchased by nearly every large government contractor. When GovWin was hacked in 2014, a news story claimed that 60,000 customers were affected, so this represents a large user base.  Deltek has purchased a number of competitors over the years, such as FedSources, Centurion Research and Input.  Deltek is one of the most expensive of these services.  Some users find the CRM user interface a bit out of date. Integration with Salesforce is available.

Onvia: Onvia covers state and local government and grant sources as well as federal opportunities.  Onvia creates write papers and analysis which are available without a subscription.

Bloomberg Government: Bloomberg is the largest new player in many years, bringing the same quality and breadth of coverage for which they are known in the financial industry.  Bloomberg hosts events with government and industry leaders as well as briefings from its analysts. I have attended Bloomberg events and the quality of their presentations and analysts is quite high.

Govini: Another relatively new player that, like Bloomberg, has recruited veterans from its competitors. According to this 2014 article from the Wall Street Journal, Govini has a plan to gather and publish contracts data from all over the world.  It was described in the article as a startup with 40 people and about 200 subscribers.

BidSync: Free and paid plans available.  Some government agencies publish bids through BidSync and user their infrastructure to manage amendments, proposals, and other documents. A few white papers are available. A review has been posted on Capterra in the category of procurement software.

FedMine.US: Established player.  Retro user interface with unusual use of color. Information on task orders as well as prime contracts.

Several procurement sites seem to be similar in terms of their offering and their data.  I had a harder time finding review information on the following:
FedConnect: Claims to be good complement to FedBizOps and Grants.gov which seem to be the sources of most if not all of their data.  Paid and free plans available.

GovernmentBids.com: Low cost subscriptions.

AmericasBiz.net: Administered by the North America Procurement Council, Inc. PBC (NAPC), a Colorado public benefit corporation, it includes some commercial as well as government solicitations.

USAOpps: Inexpensive service with free trail available.

EZGovOpps: Inexpensive service with free trail available. Seems focused on federal with data sources listed here.

EPipeline: Pricing not shown on website. Listed as a subsidiary of Mediagrif Interactive Technologies Inc. in Bloomberg Financial.

I will add more information and links to each to these.  So far I have found none of these providers offering integration with Dynamics CRM.