Cooperative Purchasing

Southern Maine Planning and Development Commission's Cooperative Purchasing Program began in the early 1980's as a way for our region's municipalities, non-profit agencies, and school districts to save money and time for municipal services and products.

As a group; working in conjunction with Greater Portland Council of Governments (GPCOG), municipalities, non-profit agencies, and school districts use collective buying power to reduce prices on everyday supplies and seasonal services, and at the same time, reduce administrative costs.  Many of our towns actually save several times over their " yearly dues" through this opportunity.

Savings:   In 2015 - 32 Towns saved $217,581.00



  • SMPDC - Pavement Marking/Road Striping: Contract begins on April 9th - 2017 - 2018 Bid Results

    Extremely competitive bidding enables municipalities to obtain painting of center lines & edge lines, curbs, crosswalks and handwork such as letters, handicap symbols, directional arrows and yield signs. Municipalities schedule their projects directly with the contractor.
  • SMPDC - Copy/Computer Paper: May 21st - 2016 to 2017 Bid Results

    This bid offers members the opportunity to receive excellent prices that include delivery of the highest quality dual-purpose copier paper. Sizes and products include: letter, legal, ledger, colored and recycled paper. To place your order, contact Marian either by phone, fax or e-mail.  

    ** PLEASE NOTE: Again this year schools and non-profits will be charged a small administrative fee of 3% of the total purchased amounts to help with costs associated in the copy paper bid process. A separate invoice will be sent at the end of the contract period. Even with this additional fee, you will see a significant savings on your copy paper purchases. Municipalities will not be charged an administrative fee, as this cost will be included in your yearly dues amounts.
  • SMPDC - Road Salt: July 23rd - 2016 to 2017 Bid Results

    Since 2011, SMPDC has gone out to bid separate from GPCOG for road salt supplies to see if we could get better pricing due to our location being closer to the Portsmouth Salt Storage. The prices have been very competitive.  You order directly from the salt supplier, but be sure to specify that you are purchasing under the SMPDC bid to get our low prices.

    ** PLEASE NOTE: This year, because of time, printing, and mailing costs associated with securing the lowest Road Salt pricing, SMPDC will be charging your town a small administrative fee of .25% per ton. A separate billing will be sent out at the end of the winter season for this fee. This fee is far less than SMPDC communities paid in prior years. Even with this added small Administrative fee, the savings you receive by purchasing your road salt needs from our Cooperative Purchasing Program will be substantial.


  • GPCOGPaving, Reclaiming and Crack Seal:  May 1st - Administrative Fee of 2% per ton - Enables towns to receive competitive pricing on one of the most expensive services they require.  Individual pricing, based on each community's scope of work, commands much lower prices than communities are typically able to obtain on their own.  Although most communities prefer Superpave, Maine DOT spec B, C, and D mixes are still offered by some contractors. -  2016 - 2017 Bid Results.
  • GPCOG - Tires and Tubes: May 1st - Administrative Fee of 5% of invoiced amount - This bid is for a wide variety of tires and tubes that are commonly purchased by municipalities, police, schools and other agencies. Prices are known to be among the lowest in the State.  2015 - 2016 Bid Results.
  • GPCOGFlags and Related Equipment: - April 30th - Administrative Fee of 2% - A wide variety of fabrics, sizes and makers are available for our municipalities needs. Extended Prices - 2014-2015 Bid Results
  • GPCOGCatch Basin Cleaning: - May 1st - Administrative fee of 4% of invoiced amount 0 Bids for this service are requested on both hourly and per basin.  Bidders must have a VAC All or equal catch basin cleaner with a minimum capacity of 13 CY and 12,000 CFM at intake, revolving power boom and capability of cleaning a 20' deep basin. - 2015-2016 Bid Results.
  • GPCOGGas/Diesel Fuel - June 1st - Administrative fee of $.0025/Gal. - This bid allows communities and school departments and other eligible agencies to purchase, at the most favorable prices available.  Awarded companies cannot charge more than their cost, PLUS a fixed profit margin (add-on).  Products include regular and super unleaded gasoline and diesel fuel.  2015-2016 Bid Results.  
  • GPCOG - Office Supplies: June 1st - Administrative fee of 3% - It was determined that we would continue the 2015-2016 Office Supply Bid through W.B. Mason.  So please continue to use the same low bid price list.  Order your office supplies directly from WB Mason, but be sure they know you are part of this bid. - 2016 to 2017 Bid Results.
  • GPCOGHeating Fuels/Propane: - July 1st - Administrative fee of $.0050 per gallon - Allows communities and school departments and other eligible agencies to purchase #1, #2, #4 and #6, K-1 and propane fuels at the most favorable prices available.  Awarded companies cannot charge more than their cost, PLUS a fixed profit margin (add-on) during the term of each bid.  2013-2014 Bid Results.  2015 - 2016 Bid Results
  • GPCOGCulvert Pipe - July 1st - Administrative fee of 4% of invoiced purchases - Municipalities can receive low pricing on aluminum alloy pipe, N12, SDR-35, drainage tubing, CMP and aluminum coated Type II CMP and poly pipe. 2016-2017 Bid Results.
  • GPCOG - Road Salt: August 1st - Administrative fee of 1.5% per ton for non-members and .75% per ton for members. - One of the largest road salt bids in the state, participants pay one of the lowest prices per ton available anywhere for delivered salt. Picked-up salt is offered as an option. All salt is laboratory tested and must meet stringent specifications for gradation, moisture and sodium content.
  • GPCOG - Signs and Accessories: October 1st - Administrative fee of 4% of invoiced purchases - This long running bid has been noted for obtaining the lowest available prices on quality signs, signposts and other safety products such as barricades, flashers and barrels. Signs are available in engineer grade, high intensity and prismatic reflectivity. - 2016 - 2017 Bid Results.

A small Administrative Fee (based on percentage of purchase) is charged to SMPDC towns that purchase through our bids. Even with this fee, participants report significant savings. While we strive to offer you the best quality products at the lowest price, you are not obligated to purchase through our bidding process, participation is voluntary.

We encourage you to contact This email address is being protected from spambots. You need JavaScript enabled to view it. or phone her 571-7065 X 10 for more information or to be notified of bidding. If you didn't get a copy of the bid results, and want to see them, contact Marian.